Fix analytics classification: ignore bot-UA pings, skip preload GETs.

JS-running crawlers (Googlebot, GoogleOther, Applebot) execute pagerite.js
and send navigation pings, registering as visitors. Pings whose User-Agent
matches _is_bot_ua (any "bot" token plus listed exceptions) are now
ignored, so their document GETs flush to the crawler list as intended. No
source verification: a spoofed bot UA merely lands in the crawler stats,
and path-based abuse classification catches scanners regardless.

Idle-time link preloads from pagerite.js were queued as pending crawler
hits and flushed to the crawler list whenever the user navigated more than
10s later, so real visitors' subpage loads showed up as crawler hits.
Preload fetches now carry an x-pagerite-preload header and the document
GET handler skips tracking for them; the ping sent on actual navigation
does the counting.

.gitignore

@@ -2,6 +2,8 @@
 !.gitignore
 *.lock
 *.kantadb
+pagerite.analytics.json
+dbip-*.mmdb*
 /pagerite/frontend-build
 package-lock.json
 

AGENTS.md

@@ -5,288 +5,38 @@
 
 Please instead ask the user to see from dev tools what you need, e.g. to look up something in DOM or log. Use console.log for debugging where needed (and otherwise for permanently kept useful messages in the app).
 
-## What this is
-
-Pagerite: a single-user CMS/blog. FastAPI serves HTML rendered in Python
-with html5tagger; content is persisted in a kanta database and rendered on
-the fly per request. Vue is used only for interactive bits (editing tools),
-not for the public pages. See `docs/design-principles.md` for the design.
-
 ## Layout
 
-- `pagerite/` — the Python backend package (hatchling build target).
-  - Server run by CLI entry point `uv run pagerite` (no auto reloads, build needed)
-  - Dev mode `scripts/devserver.py` (which the user mostly uses for auto reloads, no build needed)
-  - Avoid running the server yourself, ask the user to test
-  - `app.py` — the FastAPI app. FastAPI's built-in API docs are disabled
-    (`docs_url`/`redoc_url`/`openapi_url=None`) because `/docs` belongs to
-    our content. Our own routes (content pages, `/_api/...`, `/_f/...`) are
-    registered BEFORE `frontend.route(app, "/")` is called: fastapi-vue
-    inserts its file routes at the position where
-    `route()` was called (during `load()` in the lifespan), so anything
-    defined earlier wins. The one exception is the content catch-all
-    `/{path:path}`, registered AFTER `frontend.route()` so that built
-    frontend assets still take priority over content slugs. The `Frontend`
-    is constructed with `spa=False` explicitly: it only serves the built
-    files without a catch-all. The build mirrors the URL space — hashed
-    immutable assets under `/_assets/`, `favicon.ico` at the site root —
-    and an `index.html` in the build would become a `/` route, so leave it
-    out of the build to keep `/` ours.
-  - `data.py` — msgspec Structs for the kanta database. The site structure
-    is a tree: `Data.menu` maps top-level slugs to `Node`s, each with
-    `children` keyed by slug — the URL path is the slug chain. The front
-    page is whichever top-level node has slug "" (parallel to the other
-    main level pages, not their parent); it cannot have children, and
-    renaming its slug away leaves no front page ("/" redirects to the
-    first nav item). `Node.content` is
-    the Markdown page, or None for a pure category label whose URL renders
-    a placeholder page (while nav links to it point at its first child);
-    every label's title and slug are editable. Siblings order by the fractional `Node.order` key: a moved
-    item gets a fresh key relative to its new siblings, all others keep
-    theirs. `resolve`/`find_slot` walk the tree by path; moves are slot
-    detach/attach carrying the whole subtree. Legacy flat `Data.pages`
-    (pre-tree databases) migrates into `menu` on startup. The app owns
-    the `Data` object; reads are plain attribute access, writes in
-    `kanta.transaction(...)`.
-    `Data.files` is a content-addressed store (blake3[:12] + extension)
-    mapping file names to bytes, served at `/_f/{name}` with immutable
-    caching; pages reference files by absolute `/_f/` URLs so hierarchy
-    moves never break them. `Node.banner` is a raw trusted HTML snippet
-    for the header banner (img, styled div, canvas+script...); empty
-    inherits from the node's ancestors (front page last). It is rendered
-    AFTER the banner design's artwork, so author code (e.g. a `<style>`
-    override) always wins over the design's own styles.
-    `Node.banner_design` picks a banner design: a theme folder name whose
-    `banner.css` styles it and whose `banner.html` (arbitrary markup:
-    canvas + style + script) or `banner.svg` supplies the inline artwork
-    (wrapped in `div[data-design]`); "" = explicitly no design, None =
-    inherit (nearest ancestor, front page last, then the active theme's
-    own design if it ships banner.css/banner.svg/banner.html). The design's banner.css
-    is linked in `<head>` (id `pagerite-banner`) between the theme and the
-    custom CSS.
-    `Data.version` is bumped on every write
-    and embedded in page ETags so nav-affecting changes invalidate caches.
-    `Data.brand` is the site name (header link + `<title>` suffix), editable
-    in the site editor via `/_api/settings`; empty = no header link and
-    no `<title>` suffix. `Data.brand_html` is raw trusted HTML replacing the
-    brand link entirely (rendered in a `#brand` div on top of the banner,
-    next to the nav) — site-wide, not per-page like banners; edited in the
-    site editor with image/video upload into `Data.files`. `Data.theme` is
-    the active theme name (empty =
-    none/base only); themes are folders in `pagerite/themes/{name}`
-    containing `theme.css` and/or `banner.css` (+ `banner.svg` artwork and
-    any extra assets the CSS references, like summer's `grass.svg`),
-    served by the backend at `/_themes/{name}/...` — read from disk per
-    request (etag by mtime), never built, so on-disk edits show on the
-    next page load even in prod. The theme selector and banner-design
-    selector enumerate these folders via `GET /_api/settings`.
-    `Data.custom_css` is raw trusted CSS injected inline in every page
-    `<head>` (id `pagerite-user`) and swapped during fetch-navigation;
-    editable in the site editor. Font picks (heading/body/brand) in the
-    site editor are stored as plain `:root` rows in `custom_css`
-    (`--font-body: var(--font-source-sans);` format — parsed out and
-    rewritten on change, the `:root` block added/removed as needed),
-    referencing the per-family variables (`--font-source-sans` etc.) from
-    pagerite.css;
-    the base stylesheet's `--font-brand` defaults to `var(--font-heading)`.
-    `Data.favicon` names a file in the content-addressed `files` store,
-    uploaded/cleared in the site editor via `PUT`/`DELETE
-    /_api/settings/favicon`; when set it is linked as `<link rel="icon">`
-    on every page, otherwise browsers fall back to the build's
-    `/favicon.ico` by convention.
-  - `markdown.py` — markdown-it-py renderer (html passthrough + attrs,
-    footnote, deflist, tasklists, admon, gfm_autolink, sub/superscript
-    plugins; typographer + breaks on). Custom
-    image rule: relative srcs resolve against the page path; an image
-    standing alone in its paragraph becomes a figure (captioned when
-    titled), while inline-with-text images and raw <img> HTML stay plain.
-    A `{dates}` line expands to the article's
-    published/updated dateline (`p.dateline`, from `Node.created`/
-    `modified`; left literal in previews of unsaved pages).
-  - `views.py` — the shared page layout as an html5tagger `Template` with
-    placeholders (`Title`, `Brand`, `Banner`, `Nav`, `Sidebar`, `Main`), nav
-    rendering straight from the `Data.menu` tree (siblings sorted by
-    `Node.order`; nav links to content-less labels point at their first
-    child via `first_leaf`, the first published descendant with content),
-    and page/404 rendering. If the markdown contains its own h1, the page title
-    is NOT rendered as an additional h1 (it still supplies <title> and nav
-    labels). The navbar holds
-    top-level items only; the current section's subitems go to a left
-    `#sidebar` as a nested list (the section's direct children plain,
-    deeper levels indented with article-list-style markers), which is
-    rendered when the section offers at least two
-    published items, or exactly one while viewing anything other than that
-    only page — the section index, a 404, a grandchild (so those pages can
-    reach the child), and also on that only page itself when it has
-    published children of its own; no aside element at all on the front
-    page, leaf
-    pages and the sole childless page of a one-page section. Also,
-    category labels are nodes without content — None *or* empty markdown —
-    and their nav links point at their first child page. Dynamic regions have stable ids
-    (`#page-banner`, `#nav`, `#sidebar`, `#main`) for fetch-navigation swaps
-    (`#sidebar` may be absent on either side of a swap).
-  - `seed.py` — demo content written on startup for paths missing from the
-    database (never overwrites existing pages).
-  - `frontend/src/` — the Vue editor and public-page entries.
-    - `main.js` — Vue editor app entry, mounts the tabbed EditorShell.
-    - `pagerite.js` — public page entry; runs fetch-navigation, scroll-reveal,
-      OverlayScrollbars on `document.body` (floating, auto-hiding scrollbars
-      that never reserve layout space or shift the page when appearing;
-      native scroll APIs like `window.scrollTo` keep working; themed via the
-      `--os-*` variables in pagerite.css),
-      brand shrink-to-fit (the themed size is the maximum; JS reduces the
-      font-size so a long brand or narrow viewport still fits one line),
-      code copy buttons, and the auth check. It first probes `GET /auth/api/settings`
-      to detect whether Paskia SSO is available, then `GET /_api/settings` to
-      learn the current session's admin status. The same reverse proxy that
-      gates `/_api` returns 401 for anonymous users, 403 for users without
-      the admin permission, and 200 for admins. When Paskia is detected, a
-      🔑 login button (anonymous) or 🔐 profile button (logged in) is shown in
-      the banner corner; both open Paskia's iframe dialog via `showAuthIframe`
-      instead of navigating away. Admins also get the 🖊️ page/banner edit pens
-      and a ⚙️ site-settings pen (asset URLs from the
-      `pagerite:editor-src`/`-css` meta tags). If no Paskia SSO is
-      detected (dev/no proxy), editing is left open. Pages themselves render
-      identically for everyone; the real gate is the auth proxy in front of
-      all of `/_api`. The backend links the stylesheets in a fixed order —
-      base (Vite build), theme, banner design, custom CSS last — each with
-      a stable id so the site editor can swap them in place.
-    - `assets/` — shared styles and data files built by Vite and served hashed
-      under `/_assets/`: `pagerite.css` (base layout + conservative
-      variables), `pygments.css`,
-      and `fonts/` (self-hosted Source
-      Sans 3/Source Serif 4/Fraunces/Literata/Cormorant/Playfair
-      Display/Inter/Montserrat/Fira Code/Cause/Exo 2/New Rocker
-      variable woff2). The `::view-transition*` block at the end of `pagerite.css` (from
-      termotohtori.fi) is fragile — do not tweak. Themes are NOT built:
-      `pagerite/themes/{name}/theme.css` (theme overrides and font picks:
-      `purple` = dark dusk palette with Fraunces/Literata and a tilted
-      oversized gradient brand; `corporate` = light-first with automatic
-      `prefers-color-scheme` dark mode, Montserrat/Inter and a huge solid
-      brand; `nitro` = racing/HUD style following `prefers-color-scheme`
-      (warm light-grey page, deep violet in dark), Montserrat/Literata,
-      black as an accent only, a straight orange blade under the banner, and
-      an orange racing-tab nav clipped with a bezier `shape()`; `summer` =
-      light playful meadow, one palette sampled from its illustrated
-      `banner.svg` (sky/grass/sun/flower pink), Fraunces/Literata, a tilted
-      gradient brand, flower bullets, and a layered-parallax banner (sun
-      rises, clouds drift, nearer hills move less) with idle animations
-      (swaying flowers, floating clouds, breathing sun glow) wrapped in
-      `prefers-reduced-motion: no-preference`) and the
-      companion `banner.css` banner designs are served by the backend.
-    - Vite builds ES-module `.js` outputs; the backend renders `<script
-      type="module">` for them (module scripts defer by default).
-  - The database file is `pagerite.kantadb` in the cwd (`PAGERITE_DB`
-    overrides); gitignored. Do not delete it without asking.
-- `scripts/fastapi-vue/` — helper scripts from the fastapi-vue template
-  (build hook etc.), do not edit.
-- `frontend/` — the Vue editor as a single tabbed `EditorShell.vue` mounted
-  in a host div created inside the static document. The shell hosts four
-  kept-alive tabs (ordered site-wide first — site, structure — then, after a
-  visual break, the per-page tabs — article, banner): `PageEditor.vue`
-  (CodeMirror + server-rendered preview over WebSocket `/_api/ws/editor`,
-  previewing into the visible article; editor scroll drives the article
-  scroll — while any editor is open the window scroll is locked
-  (`body.editing`), the panel exactly fills the available window height, and
-  only `#main` scrolls; a format bar offers Markdown helpers — bold/italic/code/link/
-  table/image upload, with Ctrl/Cmd-B/I/S bindings — for the
-  hard-to-remember syntax) — edits content and
-  title only, never the path — `BannerEditor.vue`
-  (per-page banner HTML + banner design selector, previewed into
-  `#page-banner`), `SiteEditor.vue` (site brand + optional custom brand
-  HTML with image/video upload + theme selector + font picker + favicon
-  upload — clicking the preview tile picks a new one — +
-  site-wide custom CSS, CSS injected into
-  `<head id="pagerite-user">`), and `StructureEditor.vue` (the
-  vue-draggable structure tree with
-  always-editable title/slug inputs per row). Media uploads everywhere use
-  🖼️ icon buttons (pasting into the editor works too). The article, banner and
-  site-settings pens are shorthands that open the shell on the matching tab;
-  once open, clicking a pen switches tabs (and retargets the editors to the
-  current page) instead of closing/remounting. The ✕ in the tab bar closes
-  the shell (Escape too); tabs have no close buttons of their own. Closing
-  only HIDES the shell — the Vue app stays mounted, so page-editor state
-  (unsaved text included) survives until a real page reload; saving there is
-  explicit (💾/Ctrl+S) and refreshes the page regions in place. Admin panels
-  never reload the page. In-place
-  page re-rendering shared by the banner/site/structure tabs lives in
-  `swapdoc.js` (`runScripts`/`loadPlain`: fetch a page, swap the dynamic
-  regions, replaceState). Placeholder texts are reserved for showing the
-  actual default in effect when a field is left empty (e.g. the pending
-  row's slug derived from its title); labels and help are real elements or
-  tooltips, never placeholders.
-  Everything saves immediately as you edit (brand/title/CSS debounced,
-  slug on commit since it renames the path), theme change swaps the
-  stylesheet in place, tree rows navigate in place without transitions when
-  focused, and the front page is a root-only row whose empty slug is
-  editable like any other. Every
-  non-empty list (and the root) ends with a non-draggable ➕ footer row
-  (vuedraggable `#footer` slot): clicking it starts a new pending page at
-  that level (its slug placeholder shows the slug derived live from the
-  title being typed), and while dragging it is the list's "end of list" drop
-  target. Committing a pending page PUTs it with empty markdown (creates
-  an empty page that renders with its title — saving never deletes;
-  deletion is the page editor's explicit choice: saving trimmed-empty
-  text issues a REST DELETE), then switches to the page editor tab for
-  the actual writing. Dropping ON the lower part of a row moves the page
-  under that row (the child list's container invisibly overlaps its own
-  row's bottom via negative margin — Sortable inserts it as the first child
-  natively), while a row's exposed top edge inserts a sibling before it. Row
-  indentation is structural (each nested list margin-indents itself), so a
-  dragged row previews its whole subtree at the target list's depth. The
-  shell is dynamic-imported onto the content page by pagerite.js when an edit
-  pen is clicked (the pens are injected by pagerite.js after the session
-  validates; they carry `data-editor-src`/`data-editor-css`/`data-editor-mode`).
-  In dev, modules load from the Vite dev server (`PAGERITE_VITE_URL`),
-  in prod from the hashed build assets resolved via
-  `frontend-build/.vite/manifest.json`. `vite.config.js` sets
-  `appType: 'mpa'` (no SPA fallback) and builds with `manifest: true`,
-  `assetsDir: '_/assets'` (so the build mirrors the URL space;
-  `frontend/public/favicon.ico` lands at the build root and is served at
-  `/favicon.ico`). JS inputs are `src/main.js` and `src/pagerite.js`, plus
-  `src/assets/pagerite.css` as a separate stylesheet entry; theme and
-  banner-design CSS are NOT built — they live in `pagerite/themes/{name}/`
-  and are served by the backend. There
-  is no `index.html` source (it would shadow `/` and turn missing dev paths
-  into an empty Vue shell). All outputs are ES modules. The build sets
-  `preserveEntrySignatures: 'exports-only'` because main.js is consumed
-  via dynamic `import()` for its `openEditor`/`closeEditor` exports — Vite
-  app builds otherwise strip unused entry exports, leaving dead edit pens.
-  In dev the backend links theme/banner-design stylesheets like in prod
-  (`/_themes/...`); only the base CSS is Vite-injected from JS, and
-  pagerite.js then re-appends the `#pagerite-theme`/`#pagerite-banner`/
-  `#pagerite-user` elements to restore the canonical order (base < theme <
-  design < custom CSS). Theme switches in the site editor simply swap the
-  `#pagerite-theme` link href, identically in dev and prod.
-  vite-plugin-fastapi.js has an
-  auto-upgrade marker — edit `vite.config.js`, not the plugin.
-- `docs/` — design documentation.
+Pagerite is a CMS. See `docs` for the full design and implementation details. Key files for code changes:
+
+- `pagerite/` — Python backend package (hatchling build target).
+  - `app.py` — FastAPI app and route registration.
+  - `data.py` — msgspec Structs for the kanta database.
+  - `markdown.py` — markdown-it-py renderer.
+  - `views.py` — shared page layout and rendering.
+  - `seed.py` — demo content, written only on first database creation.
+  - `analytics.py` — visit analytics collection (see `docs/analytics.md`).
+- `frontend/src/` — Vue editor and public-page JS entries.
+  - `main.js` — Vue editor app entry.
+  - `analytics-main.js` — analytics page entry (mounts `AnalyticsView` at `/_a`).
+  - `pagerite.js` — public page entry.
+  - `assets/` — base CSS, Pygments styles, fonts.
+- `scripts/devserver.py` — dev server with auto reload (the user mostly uses this; avoid running the server yourself, ask the user to test).
+
+Server run by CLI entry point `uv run pagerite` (no auto reloads, build needed). Dev mode is `scripts/devserver.py` (auto reloads, no build needed).
 
 ## Toolchain
 
-- Python >= 3.14, managed with **uv**. Dependencies: `fastapi[standard]`,
-  `fastapi-vue`, `html5tagger`, `kanta`, `markdown-it-py`, `mdit-py-plugins`,
-  `pygments`, `tracerite`; dev group has `httpx`. Run anything via
-  `uv run ...` (the venv is `.venv`).
+- Python >= 3.14, managed with **uv**. Dependencies: `fastapi[standard]`, `fastapi-vue`, `html5tagger`, `kanta`, `markdown-it-py`, `mdit-py-plugins`, `pygments`, `tracerite`; dev group has `httpx`. Run anything via `uv run ...` (the venv is `.venv`).
 - Key libraries:
-  - **html5tagger** — all HTML generation (`E`, `Document`, `Template`,
-    `HTML` for trusted/raw HTML).
+  - **html5tagger** — all HTML generation (`E`, `Document`, `Template`, `HTML` for trusted/raw HTML).
     - To create stand alone pages, begin with `doc = Document(...)` that gives a HTML5 page header
     - Chain with `doc.p("text").br`: every attribute access creates element to doc (returning self), calls add content to current element.
     - Closing tags are not used where optional, e.g. no `</p>` or `</li>` is ever included in output. Due to this proper "nesting" of content is NOT required and should be avoided. Where needed, () directly after tag define attributes and content INSIDE the element, then close the element. `with doc.ul:` and such may be used for larger chunks.
-    - Prefer building directly on one builder with `with` blocks (recursing
-      inside a with block for hierarchies) over preparing `E.` snippets into
-      variables and composing them. Note `with doc.li:` alone fails (`li`
-      has an optional end tag) — use `with doc.li.ul:` style chains, or
-      `doc.li.a(...)` followed by a nested `with doc.ul:` block.
-    - `Template(builder)` freezes a builder with **Capitalized** attribute
-      placeholders (e.g. `E.Title`, `doc.main(E.Main, id="main")`); calling
-      it fills the slots with escaping — pass `HTML(...)` for raw HTML.
-      Passing a list to a template slot expands it; passing a list to a
-      normal builder call does NOT (spread it: `E.ul(*items)`).
+    - Prefer building directly on one builder with `with` blocks (recursing inside a with block for hierarchies) over preparing `E.` snippets into variables and composing them. Note `with doc.li:` alone fails (`li` has an optional end tag) — use `with doc.li.ul:` style chains, or `doc.li.a(...)` followed by a nested `with doc.ul:` block.
+    - `Template(builder)` freezes a builder with **Capitalized** attribute placeholders (e.g. `E.Title`, `doc.main(E.Main, id="main")`); calling it fills the slots with escaping — pass `HTML(...)` for raw HTML. Passing a list to a template slot expands it; passing a list to a normal builder call does NOT (spread it: `E.ul(*items)`).
     - To create plain HTML snippets use `E.div(E.p("content"))` etc using the `E` empty builder.
-  - **kanta** — asyncio-native embedded database: `Kanta(filename, data)`
-    root object, `transaction`, `flush`, snapshot/replay-log persistence.
+  - **kanta** — asyncio-native embedded database: `Kanta(filename, data)` root object, `transaction`, `flush`, snapshot/replay-log persistence.
     - `async with Kanta(Data(),...) as kanta:` (or await kanta.open/close)
     - `with kanta.transaction(...) as data:` - transactions only for writes
     - `data` may be referenced directly to read anywhere and to modify in transactions (`as data` is just a shorthand access)
@@ -294,32 +44,12 @@ not for the public pages. See `docs/design-principles.md` for the design.
       - We prefer objects rather than lists, as this works better in change diffs. E.g. `dict[str, True]` where the keys indicate presence and always have value `True`.
     - Maintaining and owning the app's own `Data` object is preferable; Kanta never copies this, only edits in place
     - Note: besides opening it every access is immediate direct variable access: no `await`, no locks, no delays
-  - **fastapi-vue** — template glue for serving/building the Vue frontend;
-    keep its integration points (`Frontend`, build hook) intact.
-  - **markdown-it-py** — Markdown rendering with `html=True` raw
-    passthrough; mdit-py-plugins for footnote/deflist/tasklists/attrs;
-    **Pygments** for server-side code highlighting (`nowrap` spans, styled
-    by `frontend/src/assets/pygments.css` which maps token classes 1:1 onto
-    the `--code-*` variables; light/dark palette sets live in
-    `pagerite.css` and resolve via `light-dark()` from the theme's
-    `color-scheme` — themes pick a set, not individual colors).
+  - **fastapi-vue** — template glue for serving/building the Vue frontend; keep its integration points (`Frontend`, build hook) intact.
+  - **markdown-it-py** — Markdown rendering with `html=True` raw passthrough; mdit-py-plugins for footnote/deflist/tasklists/attrs; **Pygments** for server-side code highlighting (`nowrap` spans, styled by `frontend/src/assets/pygments.css` which maps token classes 1:1 onto the `--code-*` variables; light/dark palette sets live in `pagerite.css` and resolve via `light-dark()` from the theme's `color-scheme` — themes pick a set, not individual colors).
 
 ## Conventions
 
 - Keep dependencies minimal; add via `uv add` and mention it.
-- The public URL space belongs to content (pretty slugs at root). Reserve
-  only `/_` for the machinery (`/_api/`, `/_f/`, `/_assets/`), plus
-  `/favicon.ico` from the build. Slugs are lowercase ASCII letters, digits,
-  hyphens and underscores `[a-z0-9_-]` (the site editor filters input live
-  via `slugify.js`, built on the `transliteration` npm package — unicode
-  folds to ASCII, spaces become hyphens; an empty slug on a new page is
-  derived from its title), may not begin with `_` or `.`, and such URLs are
-  never looked up as content.
-- No auth in core code; the SSO/reverse proxy gates all of `/_api`
-  (forward-auth) and owns `/auth/` (login/logout, session validation).
-  Pages render identically for everyone; pagerite.js adds the editing UI
-  only after the auth server validates the session. Never add output
-  sanitization "for safety" against the author — embedded HTML/scripts in
-  Markdown are passed through deliberately.
-- Update this file and `docs/design-principles.md` when architecture,
-  tooling, or conventions change.
+- The public URL space belongs to content (pretty slugs at root). Reserve only `/_` for the machinery (`/_api/`, `/_f/`, `/_assets/`), plus `/favicon.ico` from the build. Slugs are lowercase ASCII letters, digits, hyphens and underscores `[a-z0-9_-]` (the site editor filters input live via `slugify.js`, built on the `transliteration` npm package — unicode folds to ASCII, spaces become hyphens; an empty slug on a new page is derived from its title), may not begin with `_` or `.`, and such URLs are never looked up as content.
+- No auth in core code; the SSO/reverse proxy gates all of `/_api` (forward-auth) and owns `/auth/` (login/logout, session validation). Pages render identically for everyone; pagerite.js adds the editing UI only after the auth server validates the session.
+- Update the relevant MarkDown files when architecture, tooling, or conventions change.

README.md

@@ -1,5 +1,3 @@
 # Pagerite
 
-A single-user CMS/blog. FastAPI serves HTML rendered in Python with html5tagger,
-content is persisted in a kanta database and rendered on the fly per request.
-Vue is used only for the interactive editing tools, not for the public pages.
+A single-user CMS/blog. FastAPI serves HTML rendered in Python with html5tagger, content is persisted in a kanta database and rendered on the fly per request. Vue is used only for the interactive editing tools, not for the public pages.

docs/analytics.md

@@ -0,0 +1,263 @@
+# Analytics
+
+Server-side visit analytics. Data lives in a plain JSON file — a msgspec
+Struct dumped to disk — separate from the kanta content database, path from
+`PAGERITE_ANALYTICS` (default: the database path with `.kantadb` replaced by
+`.analytics.json`, e.g. `pagerite.analytics.json`).
+
+- `pagerite/analytics.py` — data model (`Analytics`, `Client`, `Visit`,
+  `CrawlerHit`, `AbuseHit`) and the `Store` (in-memory data + session map,
+  atomic JSON persistence).
+- `pagerite/app.py` — entry-referer stashing in `show_page` (`_track_entry`),
+  the `POST /_a` ping endpoint, and `WebSocket /_api/ws/analytics`
+  (admin-gated like every `/_api` endpoint).
+- `frontend/src/pagerite.js` — client navigation pings and the 📊 pen.
+- `frontend/src/AnalyticsView.vue` — viewer component rendered inside the
+  normal site layout on the `/_a` analytics page.
+- `frontend/src/analytics-main.js` — page entry that mounts `AnalyticsView`
+  into `#analytics-app` inside `#main`.
+
+## What is collected
+
+The client (`pagerite.js`) POSTs fire-and-forget pings to `/_a` with
+`{fr, to}` (`fr` = source path):
+
+- **Initial page load**: `to` is the loaded path. This ping is what starts
+  the visit and counts the entry page view — the document GET alone records
+  nothing, so bots and admin browsing never register. JS-running crawlers
+  (Googlebot, GoogleOther, Applebot, ...) do ping, but their User-Agent
+  gives them away: pings whose UA matches `_is_bot_ua` (anything calling
+  itself a "bot", plus known exceptions such as GoogleOther) are ignored
+  server-side, and their document GETs land in the crawler list instead.
+  No source-IP verification is done: a spoofed bot UA merely lands in the
+  crawler stats, and scanners that probe telltale paths are caught by the
+  abuse rules regardless. Reloads are not
+  visits: the ping is skipped (PerformanceNavigationTiming `reload`), so a
+  refresh neither counts a second view nor logs a self-transition. The GET
+  handler stashes a cross-origin https `Referer` (origin part only) and any
+  `utm_*` query parameters in in-memory IP tables, consumed by the ping that
+  starts the visit; internal or absent referers never touch the referer table.
+- **Internal fetch-navigations**: `to` is the target path, sent only after
+  the swap actually happened (a failed swap falls back to a full load,
+  whose initial ping counts the view instead — no gap, no double count).
+- **External links** (`https` only): `to` is the link's full URL. This is the
+  exit-link record; the user may continue navigating afterwards (new tab,
+  back), so the exit URL is not necessarily the last trail entry. Outbound
+  links are stored by full URL so several links to the same domain remain
+  distinct.
+- **Excluded**: back/forward (popstate) navigations, navigation involving
+  the analytics page itself (`/_a`), and everything while the user has the
+  editor open (`body.editing`). Admin noise, not visits.
+- **Admins**: when SSO is in use and the session is known to be an admin,
+  the client still pings but adds `hide=1`. The server then records
+  nothing — and if the same client session already had a visit from before
+  logging in, that visit is removed from the JSON along with the counts
+  recorded when it was created (site visit, entry view, entry transition).
+  Views/transitions logged by later pings inside such a visit lack
+  per-event timestamps and are left as-is. With no auth proxy (dev/test)
+  "admin" is everyone's state, so `hide` stays 0 and everything is recorded.
+- The server validates `to`: internal paths must be valid slug paths
+  ("/" or `[a-z0-9_-]` segments), external ones are re-derived to the
+  https origin and accepted only when the client sent exactly that.
+- **Client records**: the visitor's IP (IPv4 or IPv6 /64 network), raw
+  `User-Agent` and extracted `Accept-Language` tag are hashed with blake3;
+  the first 6 bytes identify a shared `Client` record.  The `Client` stores
+  the full IP, `User-Agent`, compact `ua_pretty`, `lang`, initial
+  `country` from the language-region subtag, and asynchronously-filled
+  `country`/`city` from DB-IP geoip plus reverse-DNS `host`.  Visits,
+  crawler hits and abuse hits all reference this record by its hash, so
+  client metadata is stored once instead of repeated per event.
+- The visitor IP is stored in the `Client`.  A reverse-DNS lookup is
+  attempted for each new client and the result, when available, is stored as
+  `host`; local/reserved/multicast addresses are skipped.  If a DB-IP MMDB
+  file (`dbip-*.mmdb` or `dbip-*.mmdb.gz`) is present in the repository
+  root, it is loaded at startup and used to look up `country`/`city`.  These
+  lookups run in background tasks after the event is stored, so the `/_a`
+  response is never delayed.  The decompressed `dbip-*.mmdb` file is kept in
+  the repository root and ignored by git.  The CLI flag `--dbip`
+  (`uv run pagerite --dbip`) downloads the latest
+  `dbip-city-lite-YYYY-MM.mmdb.gz` from DB-IP before the server starts,
+  skipping the download when the local database is already current and
+  removing older versions after an update; without the flag only an existing
+  file is used.
+- **Crawler hits**: every document GET is queued in RAM as a pending crawler
+  hit — except idle-time link preloads from pagerite.js, which carry an
+  `x-pagerite-preload` header and are not tracked at all (the ping sent when
+  the user actually navigates to a preloaded page does the counting; forging
+  the header only hides a GET from the crawler stats, the path-based abuse
+  classification is unaffected).  If a ping
+  from the same client arrives within 10 seconds the hit is discarded;
+  otherwise it is written to `crawlers`.  Crawlers do not count as
+  visits or views.  The `Accept-Language` header is stored on the shared
+  `Client` immediately; reverse-DNS host names and DB-IP geoip
+  country/city are filled in asynchronously, just like for real visits.  In
+  the analytics viewer, crawler hits are grouped by client hash and shown as
+  a trail of internal pages that crawler visited; the crawler table lists
+  the most active crawlers first rather than the most recent hits.
+- **Abuse (scanner) hits**: a 404 for a telltale path — any URL segment
+  starting with a dot (`/.env`, `/.git/config`) or ending in `.php` —
+  classifies the source IP as abuse immediately, and ten plain 404s from one
+  IP do too.  Classification reclassifies history: all earlier crawler hits
+  from that IP (persisted and pending) move to the `abuse` list, so a
+  random-UA scanner no longer pollutes the crawler stats of the legitimate
+  bot it impersonates.  Once classified, every document GET and 404 from the
+  IP is recorded as an abuse hit with the full request path (query string
+  included), and its pings are ignored.  The classified IP set (`abuse_ips`)
+  is persisted in the JSON file; the plain-404 counters are RAM-only.  In the
+  viewer, abuse hits are grouped by IP (never by client/UA — scanners
+  randomize theirs) in a separate "Abuse" table.  Identical paths are
+  collapsed into one entry with their hit count; flagged paths that
+  triggered classification are lifted to the top, followed by other 404s and
+  then document GETs from the abuser.  Raw User-Agent strings are shown one
+  per line with their occurrence counts, and the full lists are click-to-copy.
+
+## Visits and sessions
+
+There are no cookies. A visit is tied together by a client hash — the first
+6 bytes of a blake3 digest over the prettified IP (IPv4 unchanged, IPv6
+/64 network), the raw `User-Agent` string and the extracted
+`Accept-Language` tag.  The first ping from a client hash starts a new
+visit; subsequent pings extend it.  Pings arriving with no known session
+(server restart) start a fresh visit from the first ping — treated as
+missing data rather than dropped.  The client-hash → visit map and the IP →
+entry-referer/UTM tables are in-memory only; client metadata is stored in
+`Analytics.clients` keyed by the client hash.
+
+Each `Client` record:
+
+- `ip` — visitor IP address (first `X-Forwarded-For` hop, or direct peer),
+- `host` — reverse-DNS host name for `ip` when resolvable, else `""`,
+- `lang` — first `Accept-Language` tag, lowercased (e.g. `"en-us"`),
+- `country` — two-letter country code.  Initially derived from the
+  `Accept-Language` region subtag, but overwritten by the DB-IP MMDB result
+  when a database is available,
+- `city` — city name from the DB-IP MMDB lookup, when available,
+- `ua` — raw `User-Agent` string,
+- `ua_pretty` — compact display form of the UA (browser/OS/device) when
+  parsable, otherwise the raw string.
+
+Each `Visit` record:
+
+- `start` — timestamp of the first event,
+- `entry` — first page (path) seen,
+- `referer` — external https origin of the initial load, `""` for direct,
+- `client` — 6-byte blake3 hash referencing `Analytics.clients`,
+- `trail` — everything seen afterwards in first-seen order: page paths and
+  external exit URLs. Re-visiting an already seen page (incl. the entry)
+  does not append.
+- `utm` — `utm_*` query parameters from the landing URL, as a dict.
+- `read` — active reading time per path (seconds), keyed by path.
+
+Each `CrawlerHit` record:
+
+- `start` — timestamp of the document GET,
+- `entry` — page path requested,
+- `client` — 6-byte blake3 hash referencing `Analytics.clients`,
+- `referer` — external https origin of the request, `""` for direct/none,
+- `query` — raw query string of the request.
+
+Each `AbuseHit` record:
+
+- `start` — timestamp of the request,
+- `path` — full request path including the query string (e.g. `/.env?x=1`),
+- `client` — 6-byte blake3 hash referencing `Analytics.clients`,
+- `flag` — true for the path that triggered abuse classification (telltale
+  path or the 404 that crossed the threshold),
+- `is_404` — true for 404 responses, false for document GETs from the
+  abuser.
+
+Crawler hits are grouped by client hash in the analytics viewer; abuse hits
+are grouped by IP alone (resolved from the referenced `Client`).  In the
+Abuse table identical paths are collapsed with their counts; flagged paths
+that triggered classification are lifted to the top, followed by other 404s
+and then document GETs from the abuser.  Within each category paths are
+sorted by count descending, then by their earliest hit.
+
+## Aggregates
+
+- `transitions`: time series of page transitions, sparse nested dict
+  `from -> to -> bucket -> count` with the same 5-minute bucketing as
+  `views`. `from` is the referer origin or `"(direct)"` for initial loads,
+  a page path for pings.
+- `views`: time series of page loads, `path -> bucket -> count`, sparse: only
+  non-zero 5-minute buckets exist (bucket key is its floored ISO timestamp).
+  Every load counts, including repeats within a visit; external exit origins
+  are not page views and are not counted here.
+- `site_visits`: `bucket -> count` of new visits started, same sparse
+  5-minute bucketing.
+
+Sparseness keeps quiet sites small; dropping old data is a matter of deleting
+list/dict entries (`visits` is a plain append-only list, buckets plain keys).
+
+## Persistence
+
+The whole `Analytics` struct is JSON-encoded and written atomically
+(temp file + rename) on every recorded event. Traffic on a small CMS makes
+this cheap enough; batching can be added later without changing the format.
+
+## Viewing
+
+The 📊 pen in the banner corner (admins only, injected by pagerite.js next to
+the edit pens) links to `/_a`, the analytics page. It is a normal site page:
+the standard banner, navigation and footer stay in place, and the analytics
+content is rendered inside `#main`. The page itself is public, but the data
+stream comes from `WebSocket /_api/ws/analytics`, which remains admin-gated
+like the rest of the management API; visitors without access see the viewer
+with a "could not be loaded" message.
+
+Because it is a real page, fetch-navigation handles it like any other internal
+link: clicking the 📊 pen (or any link to `/_a`) fetches the server-rendered
+HTML, swaps the dynamic regions and mounts the Vue analytics app in place. The
+range selector updates the URL hash (`#week` etc.) so links to a specific
+range can be shared. When the URL has no hash, the client derives the
+default from the first analytics snapshot: `day` if the recorded history
+spans less than 24 hours, otherwise `week`.
+
+`AnalyticsView.vue` is no longer a full-screen overlay; the `body.analytics-open`
+page-chrome hiding and `#/analytics/<range>` hash routing have been removed.
+
+Charts are SVG curves (Catmull-Rom over an edge-aware adaptive Gaussian —
+a change-point detector splits the series at traffic-level shifts, then
+each segment is smoothed with a bandwidth that ramps with a broad pilot
+estimate of the local rate: isolated events stay narrow (~0.4-unit sigma,
+peaking at ~1 event/unit), busy traffic widens to a 1-unit sigma. The raw
+series is drawn faint underneath). Values are
+**per-unit rates** — per hour on the week view (5-minute bucket counts × 12,
+plotted at native 5-minute resolution), per day on the month+ ranges — and
+the smoothing time scale follows the unit: the month+ sigmas are 24× the
+hourly ones. The y max is derived from the smoothed curves so single-bucket
+spikes don't blow up the scale, and raw spikes are clamped into the plot.
+Axes always start at 0 and end at a multiple of a 1-2-5 major step (max 5
+labeled intervals, minor lines at fifths when integral; the minimum y-axis
+range is 10 so tiny values such as a single visit are not stretched to a
+fractional scale).
+The week range is aligned to Monday 00:00 UTC and overlays up to 8 previous
+weeks in the same accent color at decreasing opacity (the current week is
+truncated at the current bucket, never drawing fake zeroes for the future);
+its x labels are weekday names centered at midday UTC, without vertical grid
+lines (day boundaries would be misleading in the viewer's timezone). The
+month view labels days the same lineless way — day numbers at noon UTC,
+with the month name substituted for the 1st. Year is a rolling 365-day window ending at now, re-bucketed to daily points,
+with boundary lines at months/years.  All uses the full data reach, but keeps
+at least the past 30 days so the chart never collapses to a tiny sliver when
+the site is young. Below the charts: a radial **transition map** (all pages from
+`/_api/pages` — front page at the center, each slug level on its own ring,
+siblings clockwise in navigation order from the top, radial gap equal to
+the arc spacing — opposite transition directions joined into organic
+tapered connections whose middle width grows logarithmically with the
+count (a single count renders as a ~1 px line, uncapped), connections
+carrying less than 1% of the total traffic
+pruned; beads are simulated one by one in JS (requestAnimationFrame) and
+flow along each edge, emitted at a rate linearly proportional
+to the directional count with no in-flight limit, opposing directions
+offset onto parallel lanes. External sources show as a node row above the
+map: each visit is attributed to `utm_campaign`, then `utm_source`, then the
+referer origin, then any other `utm_*` tag, so UTM-tagged visits are grouped
+under their campaign/source value rather than the referer domain. A UTM
+source node only links to its referer when every visit carrying that tag
+came from the same origin. External exits are small nodes fanned outwards
+from their source page), per-page view
+counts, the top transitions and the 50 most recent visit trails. Data is
+streamed live over `WebSocket /_api/ws/analytics`, which pushes the latest
+JSON snapshot on connect and again whenever the analytics file is updated
+(with a small server-side debounce to avoid flooding under high traffic).

docs/backend.md

@@ -0,0 +1,31 @@
+# Backend
+
+The Python backend lives in `pagerite/`.
+
+## `app.py`
+
+The FastAPI app. FastAPI's built-in API docs are disabled (`docs_url`/`redoc_url`/`openapi_url=None`) because `/docs` belongs to our content. Our own routes (content pages, `/_api/...`, `/_f/...`) are registered BEFORE `frontend.route(app, "/")` is called: fastapi-vue inserts its file routes at the position where `route()` was called (during `load()` in the lifespan), so anything defined earlier wins. The one exception is the content catch-all `/{path:path}`, registered AFTER `frontend.route()` so that built frontend assets still take priority over content slugs. The `Frontend` is constructed with `spa=False` explicitly: it only serves the built files without a catch-all.
+
+The build mirrors the URL space — hashed immutable assets under `/_assets/`, `favicon.ico` at the site root — and an `index.html` in the build would become a `/` route, so leave it out of the build to keep `/` ours.
+
+Generated HTML pages (content pages, category/404 placeholders, `/_a`) go through `_html_response`: zstd-compressed per request at level 9 when the client sends `accept-encoding: zstd` (no gzip fallback; static assets are pre-compressed by the `Frontend`), with `vary: accept-encoding` set and the ETag kept identical across encodings so `if-none-match` revalidation still works. In production the rendered bodies are cached in an LRU keyed by everything the output depends on — page kind, path, the site origin (social meta), encoding, and `data.version`, which bumps on every content/settings change and so transparently invalidates the whole cache. The cache is bypassed in dev, where theme/design CSS is re-read from disk per request. Content pages carry an ETag built from the node's modified timestamp and `data.version`; `/_a` instead gets a blake3 hash of the rendered body (it has no Node), with matching `if-none-match` revalidations answered by a 304.
+
+## `data.py`
+
+msgspec Structs for the kanta database. See `docs/content-model.md` for the full data model.
+
+## `markdown.py`
+
+markdown-it-py renderer (html passthrough + attrs, footnote, deflist, tasklists, admon, gfm_autolink, sub/superscript plugins; typographer + breaks on). Custom image rule: relative srcs resolve against the page path; an image standing alone in its paragraph becomes a figure (captioned when titled), while inline-with-text images and raw `<img>` HTML stay plain. A `{dates}` line expands to the article's published/updated dateline (`p.dateline`, from `Node.created`/`modified`; left literal in previews of unsaved pages).
+
+## `views.py`
+
+The shared page layout as an html5tagger `Template` with placeholders (`Title`, `Brand`, `Banner`, `Nav`, `Sidebar`, `Main`), nav rendering straight from the `Data.menu` tree (siblings sorted by `Node.order`; nav links to content-less labels point at their first child via `first_leaf`, the first published descendant with content), and page/404 rendering.
+
+Content pages get SEO/social meta (description, canonical link, Open Graph + twitter card) from heuristics over the rendered article: the description is the first paragraph's text, the share image prefers a `{.hero}`-classed image, then the first raster `<img>`, then the first SVG; the first `<video>` yields `og:video`; URLs are made absolute with the site origin (`Data.site_url` — learned from admin browsers reporting their `location.origin` via `POST /_api/site-url`, correct even behind reverse proxies; until learned, the request's own base URL is the fallback); `article:published/modified_time` come from `Node.created`/`modified`. If the markdown contains its own h1, the page title is NOT rendered as an additional h1 (it still supplies `<title>` and nav labels).
+
+The navbar holds top-level items only; the current section's subitems go to a left `#sidebar` as a nested list (the section's direct children plain, deeper levels indented with article-list-style markers), which is rendered when the section offers at least two published items, or exactly one while viewing anything other than that only page — the section index, a 404, a grandchild (so those pages can reach the child), and also on that only page itself when it has published children of its own; no aside element at all on the front page, leaf pages and the sole childless page of a one-page section. Also, category labels are nodes without content — None *or* empty markdown — and their nav links point at their first child page. Dynamic regions have stable ids (`#page-banner`, `#nav`, `#sidebar`, `#main`) for fetch-navigation swaps (`#sidebar` may be absent on either side of a swap).
+
+## `seed.py`
+
+Demo content written only when the database is first created, via a `@kanta.bootstrap` handler in `app.py`.

docs/content-model.md

@@ -0,0 +1,35 @@
+# Content model
+
+The site structure is stored in the kanta database managed by `pagerite/data.py`.
+
+## Site tree
+
+`Data.menu` maps top-level slugs to `Node`s, each with `children` keyed by slug — the URL path is the slug chain. The front page is whichever top-level node has slug "" (parallel to the other main level pages, not their parent); it cannot have children, and renaming its slug away leaves no front page ("/" redirects to the first nav item).
+
+`Node.content` is the Markdown page, or None for a pure category label whose URL renders a placeholder page (while nav links to it point at its first child); every label's title and slug are editable.
+
+Siblings order by the fractional `Node.order` key: a moved item gets a fresh key relative to its new siblings, all others keep theirs. `resolve`/`find_slot` walk the tree by path; moves are slot detach/attach carrying the whole subtree. Legacy flat `Data.pages` (pre-tree databases) migrates into `menu` on startup. The app owns the `Data` object; reads are plain attribute access, writes in `kanta.transaction(...)`.
+
+`Data.version` is bumped on every write and embedded in page ETags so nav-affecting changes invalidate caches.
+
+## Files
+
+`Data.files` is a content-addressed store (blake3[:12] + extension) mapping file names to bytes, served at `/_f/{name}` with immutable caching; pages reference files by absolute `/_f/` URLs so hierarchy moves never break them.
+
+## Banners
+
+`Node.banner` is a raw trusted HTML snippet for the header banner (img, styled div, canvas+script...); empty inherits from the node's ancestors (front page last). It is rendered AFTER the banner design's artwork, so author code (e.g. a `<style>` override) always wins over the design's own styles.
+
+`Node.banner_design` picks a banner design: a theme folder name whose `banner.css` styles it and whose `banner.html` (arbitrary markup: canvas + style + script) or `banner.svg` supplies the inline artwork (wrapped in `div[data-design]`); "" = explicitly no design, None = inherit (nearest ancestor, front page last, then the active theme's own design if it ships banner.css/banner.svg/banner.html). The design's banner.css lives in `<head>` (id `pagerite-banner`) between the theme and the custom CSS — a `<link>` in dev, an inline `<style>` in production.
+
+## Site settings
+
+`Data.brand` is the site name (header link + `<title>` suffix), editable in the site editor via `/_api/settings`; empty = no header link and no `<title>` suffix.
+
+`Data.brand_html` is raw trusted HTML replacing the brand link entirely (rendered in a `#brand` div on top of the banner, next to the nav) — site-wide, not per-page like banners; edited in the site editor with image/video upload into `Data.files`.
+
+`Data.theme` is the active theme name (empty = none/base only); themes are folders in `pagerite/themes/{name}` containing `theme.css` and/or `banner.css` (+ `banner.svg` artwork and any extra assets the CSS references, like summer's `grass.svg`), served by the backend at `/_themes/{name}/...` — read from disk per request (etag by mtime), never built, so on-disk edits show on the next page load even in prod. The theme selector and banner-design selector enumerate these folders via `GET /_api/settings`.
+
+`Data.custom_css` is raw trusted CSS injected inline in every page `<head>` (id `pagerite-user`) and swapped during fetch-navigation; editable in the site editor. Font picks (heading/body/brand) in the site editor are stored as plain `:root` rows in `custom_css` (`--font-body: var(--font-source-sans);` format — parsed out and rewritten on change, the `:root` block added/removed as needed), referencing the per-family variables (`--font-source-sans` etc.) from `pagerite.css`; the base stylesheet's `--font-brand` defaults to `var(--font-heading)`.
+
+`Data.favicon` names a file in the content-addressed `files` store, uploaded/cleared in the site editor via `PUT`/`DELETE /_api/settings/favicon`; when set it is linked as `<link rel="icon">` on every page, otherwise browsers fall back to the build's `/favicon.ico` by convention.

docs/design-principles.md

@@ -1,253 +1,55 @@
 # Pagerite Design Principles
 
-Pagerite is a single-user CMS/blog. This document records the initial
-high-level design decisions; it will be refined as the implementation
-evolves.
+Pagerite is a single-user CMS/blog. This document records the initial high-level design decisions; it will be refined as the implementation evolves.
 
 ## Architecture
 
-- **Server-side rendered.** FastAPI serves complete HTML pages, generated in
-  Python with **html5tagger**. There is no client-side templating or SPA for
-  the public site.
-- **Vue only where interactivity demands it.** Small interactive islands
-  (editing tools mainly) are Vue components mounted into specific elements of
-  the server-rendered pages. The public reading experience has no scripting
-  requirement.
-- **Persistence via kanta.** Content is stored in an asyncio-friendly kanta
-  database. Rendering happens on the fly on each request — there are no
-  pre-built static artifacts.
+- **Server-side rendered.** FastAPI serves complete HTML pages, generated in Python with **html5tagger**. There is no client-side templating or SPA for the public site.
+- **Vue only where interactivity demands it.** Small interactive islands (editing tools mainly) are Vue components mounted into specific elements of the server-rendered pages. The public reading experience has no scripting requirement.
+- **Persistence via kanta.** Content is stored in an asyncio-friendly kanta database. Rendering happens on the fly on each request — there are no pre-built static artifacts.
 
 ## Content model
 
-- Pages and blog articles are fundamentally the same kind of thing: named
-  pieces of content. The blog/website distinction is blurred; an article is
-  just a page (possibly with metadata such as a publication date and
-  listing in a feed).
-- **Pretty URLs.** Content is addressed by its name (slug), not by technical
-  constructs — no `/cms/...` or `/blog/post1` prefixes. Slugs usually live
-  directly at the site root; structured content may nest
-  (`/docs/design-principles`-style). The URL space is the author's, so
-  reserved prefixes must be kept few and deliberate: everything internal
-  lives under `/_` (`/_api/`, `/_f/`, `/_assets/`). The only
-  other reserved root path is `/favicon.ico`, served from the build.
-  Slugs are lowercase ASCII letters, digits, hyphens and underscores
-  (`[a-z0-9_-]`; input is transliterated and filtered as you type, and a
-  new page's empty slug is derived from its title), may not begin with
-  `_` or `.`, and such URLs are never looked up as content.
-- **Single user, trusted author.** No auth concerns in the core design.
-  Everything published is public; only editing tools will later sit behind
-  access control (external SSO when that time comes). The author is trusted
-  to create well-meaning slugs and content — no sanitization for safety,
-  only for correctness.
-- **Commenting** is not planned now but the model should not preclude it
-  later.
+- Pages and blog articles are fundamentally the same kind of thing: named pieces of content. The blog/website distinction is blurred; an article is just a page (possibly with metadata such as a publication date and listing in a feed).
+- **Pretty URLs.** Content is addressed by its name (slug), not by technical constructs — no `/cms/...` or `/blog/post1` prefixes. Slugs usually live directly at the site root; structured content may nest (`/docs/design-principles`-style). The URL space is the author's, so reserved prefixes must be kept few and deliberate: everything internal lives under `/_` (`/_api/`, `/_f/`, `/_assets/`). The only other reserved root path is `/favicon.ico`, served from the build. Slugs are lowercase ASCII letters, digits, hyphens and underscores (`[a-z0-9_-]`; input is transliterated and filtered as you type, and a new page's empty slug is derived from its title), may not begin with `_` or `.`, and such URLs are never looked up as content.
+- **Single user, trusted author.** No auth concerns in the core design. Everything published is public; only editing tools will later sit behind access control (external SSO when that time comes). The author is trusted to create well-meaning slugs and content — no sanitization for safety, only for correctness.
+- **Commenting** is not planned now but the model should not preclude it later.
 
 ## Authoring format
 
-- Content is written in **Markdown** with powerful extensions (tables,
-  footnotes, code highlighting, etc.).
-- **Embedded HTML is passed through unfiltered**, including inline scripts
-  and other dynamic content the author wants to post. This is safe by the
-  single-trusted-author assumption above.
-- Renderer: **markdown-it-py** with mdit-py-plugins (footnotes, definition
-  lists, task lists, brace-attributes; tables and strikethrough from the
-  default preset), with `html=True` for raw passthrough,
-  `typographer=True` for SmartyPants-style replacements in body text (curly
-  quotes, `--` / `---` → en / em dashes, `...` → ellipsis, `(c)` → ©, etc.),
-  and `breaks=True` so single line breaks inside paragraphs become `<br>`.
-  Code spans/blocks and raw HTML are left untouched. Fenced code blocks are
-  highlighted server-side with
-  **Pygments** (`nowrap` spans styled by
-  `/_assets/pygments-*.css`, which maps every token class onto the `--code-*`
-  variables; the base stylesheet defines light and dark palette sets resolved
-  via `light-dark()`, so each theme gets the set matching its `color-scheme`
-  and may only retint `--code-bg` to keep the well in the page's color
-  family); a JS copy button appears on hover. Should this
-  prove limiting, we implement our own renderer on top of html5tagger,
-  which we already use for all HTML generation.
-- **Files are content-addressed.** Uploads (`PUT /_api/files/{filename}`)
-  are stored by content hash — blake3, first 6 bytes hex + original
-  extension — and served immutable from `/_f/{hash}.ext`. Absolute URLs
-  that survive page renames and dedupe identical content; pages no longer
-  own files. An image standing alone in its paragraph becomes a block
-  `<figure>` — with `<figcaption>` when it has a title; images inline
-  with text and raw `<img>` HTML stay plain inline images. Positioning
-  is by attribute classes:
-  `![alt](/_f/….avif "Caption"){.right}` — `{.right}`, `{.left}` float at
-  30% of the text column (the caption wraps within it; an explicit
-  `width=300` makes the figure shrink-wrap the image instead),
-  `{.wide}` goes full bleed (viewport edge to edge, or up to the docked
-  editor; the sidebar stacks on top of it); plain attributes like `width=300`
-  work too. Headings (h1/h2) clear floats, so images never overflow into the
-  next section.
+- Content is written in **Markdown** with powerful extensions (tables, footnotes, code highlighting, etc.).
+- **Embedded HTML is passed through unfiltered**, including inline scripts and other dynamic content the author wants to post. This is safe by the single-trusted-author assumption above.
+- Renderer: **markdown-it-py** with mdit-py-plugins (footnotes, definition lists, task lists, brace-attributes; tables and strikethrough from the default preset), with `html=True` for raw passthrough, `typographer=True` for SmartyPants-style replacements in body text (curly quotes, `--` / `---` → en / em dashes, `...` → ellipsis, `(c)` → ©, etc.), and `breaks=True` so single line breaks inside paragraphs become `<br>`. Code spans/blocks and raw HTML are left untouched. Fenced code blocks are highlighted server-side with **Pygments** (`nowrap` spans styled by `/_assets/pygments-*.css`, which maps every token class onto the `--code-*` variables; the base stylesheet defines light and dark palette sets resolved via `light-dark()`, so each theme gets the set matching its `color-scheme` and may only retint `--code-bg` to keep the well in the page's color family); a JS copy button appears on hover. Should this prove limiting, we implement our own renderer on top of html5tagger, which we already use for all HTML generation.
+- **Files are content-addressed.** Uploads (`PUT /_api/files/{filename}`) are stored by content hash — blake3, first 6 bytes hex + original extension — and served immutable from `/_f/{hash}.ext`. Absolute URLs that survive page renames and dedupe identical content; pages no longer own files. An image standing alone in its paragraph becomes a block `<figure>` — with `<figcaption>` when it has a title; images inline with text and raw `<img>` HTML stay plain inline images. Positioning is by attribute classes: `![alt](/_f/….avif "Caption"){.right}` — `{.right}`, `{.left}` float at 30% of the text column (the caption wraps within it; an explicit `width=300` makes the figure shrink-wrap the image instead), `{.wide}` goes full bleed (viewport edge to edge, or up to the docked editor; the sidebar stacks on top of it); plain attributes like `width=300` work too. Headings (h1/h2) clear floats, so images never overflow into the next section.
 
 ## Page structure and navigation
 
-- All pages share one static layout, defined once as an **html5tagger
-  Template** with capitalized placeholders (`Title`, `Banner`, `Nav`,
-  `Sidebar`, `Main`) filled per request. The dynamic regions carry stable
-  ids (`#page-banner`, `#nav`, `#sidebar`, `#main`).
-- The page top is a **full-width banner header** with the site name and the
-  navigation bar overlaid on it — no separate chrome header. The banner
-  combines two layers, stacked in `#page-banner` (a grid, so they overlay):
-  first the **banner design** — a named design living in a theme folder
-  (`pagerite/themes/{name}/banner.css` plus artwork as `banner.html` —
-  arbitrary markup like canvas + style + script — or `banner.svg`),
-  chosen per page via
-  `Node.banner_design` (a design name, "" for none, None to inherit from
-  the nearest ancestor, then the front page, then the active theme's own
-  design). The artwork is inlined into a `div[data-design]` wrapper: SVG
-  artwork can be recolored from the theme stylesheet (corporate's single
-  SVG serves both light and dark mode via `var()`-driven stops). Second,
-  **per-page author code**: `Node.banner` holds an arbitrary trusted HTML
-  snippet (an image, a styled div, canvas + script — anything), resolved by
-  walking up the node's ancestors to the front page and rendered **after**
-  the design artwork, so author styles always win over the design's own.
-  The base stylesheet falls back to a plain gradient. There is deliberately
-  no scrim fading the banner into the page background — any such fade would
-  ruin user-supplied designs; themes that want one bake it into their SVG
-  (purple does).
-- **Fetch-navigation.** Links are plain `<a href>`; a small script
-  (`frontend/src/pagerite.js`) intercepts same-origin clicks, fetches the
-  page, and swaps the `#page-banner`, `#nav`, `#sidebar` and `#main` regions,
-  the document title, and the site-wide custom CSS (`<style id="pagerite-user">`
-  in `<head>`), keeping the rest of `<head>` and the layout chrome. Without JS
-  everything works as normal page loads. Scripts inside fetched banner and
-  content regions are re-created so they execute. Swaps run inside `document.startViewTransition` for a rotating
-  cube page transition (CSS adapted from termotohtori.fi — the
-  `::view-transition*` block is fragile, do not tweak; skipped under
-  `prefers-reduced-motion`). Navigation within the same top-level section
-  crossfades instead of rotating; browser back navigation rotates in
-  reverse.
-- **The site structure is a tree of labels.** `Data.menu` holds the
-  top-level items by slug, each with `children` keyed by slug — the URL
-  path is the slug chain. The front page is a top-level node with slug ""
-  (an item *parallel* to the other main level pages, not their parent) and
-  cannot have children. The header navbar holds only the top level; a
-  top-level item is highlighted when viewing any of its subpages. When the
-  current page is inside a main level section with children, those direct
-  children are listed in a **left sidebar** (`#sidebar`), one level deep.
-  The sidebar exists only when there is something to navigate — sections
-  with fewer than two published items, leaf pages and the front page render
-  no aside element at all. Other sections' subitems
-  are never shown without navigating into them first.
-- **Landing pages are optional.** Every label can either have content
-  (`Node.content`, a Markdown page) or none — a content-less label renders
-  a placeholder page (404 with a pen to create it) instead of redirecting,
-  while nav links to it point straight at its first child, so categories
-  need no filler content and normal navigation never sees the placeholder.
-  Title and slug of every label are editable; renaming a
-  slug moves the whole subtree. The sidebar never lists the section
-  itself, avoiding title duplication with the navbar.
-- **Menu order is manual.** Each node has a fractional `order` key among
-  its siblings; reordering/moving writes only the moved node (it takes a
-  fresh value halfway between its new siblings; all other items keep
-  theirs). New pages append at the end of their menu. Structure edits
-  (reorder, move/rename with the whole subtree, retitle) go through
-  `POST /_api/structure` and the editor's structure panel.
+- All pages share one static layout, defined once as an **html5tagger Template** with capitalized placeholders (`Title`, `Banner`, `Nav`, `Sidebar`, `Main`) filled per request. The dynamic regions carry stable ids (`#page-banner`, `#nav`, `#sidebar`, `#main`).
+- The page top is a **full-width banner header** with the site name and the navigation bar overlaid on it — no separate chrome header. The banner combines two layers, stacked in `#page-banner` (a grid, so they overlay): first the **banner design** — a named design living in a theme folder (`pagerite/themes/{name}/banner.css` plus artwork as `banner.html` — arbitrary markup like canvas + style + script — or `banner.svg`), chosen per page via `Node.banner_design` (a design name, "" for none, None to inherit from the nearest ancestor, then the front page, then the active theme's own design). The artwork is inlined into a `div[data-design]` wrapper: SVG artwork can be recolored from the theme stylesheet (corporate's single SVG serves both light and dark mode via `var()`-driven stops). Second, **per-page author code**: `Node.banner` holds an arbitrary trusted HTML snippet (an image, a styled div, canvas + script — anything), resolved by walking up the node's ancestors to the front page and rendered **after** the design artwork, so author styles always win over the design's own. The base stylesheet falls back to a plain gradient. There is deliberately no scrim fading the banner into the page background — any such fade would ruin user-supplied designs; themes that want one bake it into their SVG (purple does).
+- **Fetch-navigation.** Links are plain `<a href>`; a small script (`frontend/src/pagerite.js`) intercepts same-origin clicks, fetches the page, and swaps the `#page-banner`, `#nav`, `#sidebar` and `#main` regions, the document title, and the site-wide custom CSS (`<style id="pagerite-user">` in `<head>`), keeping the rest of `<head>` and the layout chrome. Without JS everything works as normal page loads. Scripts inside fetched banner and content regions are re-created so they execute. Swaps run inside `document.startViewTransition` for a rotating cube page transition (CSS adapted from termotohtori.fi — the `::view-transition*` block is fragile, do not tweak; skipped under `prefers-reduced-motion`). Navigation within the same top-level section crossfades instead of rotating; browser back navigation rotates in reverse.
+- **The site structure is a tree of labels.** `Data.menu` holds the top-level items by slug, each with `children` keyed by slug — the URL path is the slug chain. The front page is a top-level node with slug "" (an item *parallel* to the other main level pages, not their parent) and cannot have children. The header navbar holds only the top level; a top-level item is highlighted when viewing any of its subpages. When the current page is inside a main level section with children, those direct children are listed in a **left sidebar** (`#sidebar`), one level deep. The sidebar exists only when there is something to navigate — sections with fewer than two published items, leaf pages and the front page render no aside element at all. Other sections' subitems are never shown without navigating into them first.
+- **Landing pages are optional.** Every label can either have content (`Node.content`, a Markdown page) or none — a content-less label renders a placeholder page (404 with a pen to create it) instead of redirecting, while nav links to it point straight at its first child, so categories need no filler content and normal navigation never sees the placeholder. Title and slug of every label are editable; renaming a slug moves the whole subtree. The sidebar never lists the section itself, avoiding title duplication with the navbar.
+- **Menu order is manual.** Each node has a fractional `order` key among its siblings; reordering/moving writes only the moved node (it takes a fresh value halfway between its new siblings; all other items keep theirs). New pages append at the end of their menu. Structure edits (reorder, move/rename with the whole subtree, retitle) go through `POST /_api/structure` and the editor's structure panel.
 - Unpublished pages are hidden from both nav and URL access (404).
 
 ## Reading experience
 
-- The article column is sized by the **viewport, never by content**: a
-  symmetric grid (`1fr minmax(0, 78rem) 1fr`) with flexible gutters keeps
-  the layout stable across navigation. The sidebar occupies the left
-  gutter, the right gutter balances it; wide screens get columns inside
-  long articles without changing the article's width.
-- A gentle **scroll-reveal** of headings, figures and block-level elements
-  (IntersectionObserver). It is layout-level: articles need no support
-  for it, and `prefers-reduced-motion` disables all motion.
+- The article column is sized by the **viewport, never by content**: a symmetric grid (`1fr minmax(0, 78rem) 1fr`) with flexible gutters keeps the layout stable across navigation. The sidebar occupies the left gutter, the right gutter balances it; wide screens get columns inside long articles without changing the article's width.
+- A gentle **scroll-reveal** of headings, figures and block-level elements (IntersectionObserver). It is layout-level: articles need no support for it, and `prefers-reduced-motion` disables all motion.
 
 ## Styling
 
-- The base stylesheet `frontend/src/assets/pagerite.css` provides the layout,
-  typography and interaction rules with conservative CSS variables. A theme layer
-  (`pagerite/themes/{name}/theme.css` — currently `purple`, `corporate`
-  and `nitro`, served by the backend at `/_themes/{name}/theme.css` straight
-  from disk, never built) overrides those variables and
-  adds the visual styling; `Data.theme` selects the active theme (empty = none/base
-  only) and the site editor can switch it, choosing from the theme folders
-  found on disk. Vue may add per-component styles on top
-  where needed. The corporate and nitro themes switch palettes automatically via
-  `prefers-color-scheme` (corporate is light-first with a matching dark palette;
-  nitro a warm light-grey page or, in dark mode, a deep violet one — its dark
-  banner and orange accents carry over unchanged); purple (dusk) uses one
-  fixed palette for everyone. Themes may restyle structural details the base
-  leaves plain — heading colors and underlines, list markers, nav treatment,
-  brand sizing. A theme folder may also ship a **banner design**
-  (`banner.css` + `banner.svg`), selectable per page independently of the
-  active theme. The banner artwork has scroll parallax: pagerite.js sets the
-  `--pry` scroll parameter on `<html>` (event-driven, so it is still when the
-  page is idle), the banner contents drift within their window (with scale
-  overscan so no edge shows), and designs may key their own effects off the
-  same parameter — purple's sun rises as you scroll.
-- Fonts, the shared stylesheet and pygments styles
-  live under `frontend/src/assets/` and are emitted as hashed assets under
-  `/_assets/`
-  (Source Serif 4 for headings, Source Sans 3 for body, Fira Code for code
-  by default; Fraunces, Literata, Cormorant, Playfair Display, Inter,
-  Montserrat, Cause, Exo 2 and New Rocker kept as woff2 options with
-  local `@font-face`, variable-weight where available). No third-party
-  requests.
+- The base stylesheet `frontend/src/assets/pagerite.css` provides the layout, typography and interaction rules with conservative CSS variables. A theme layer (`pagerite/themes/{name}/theme.css` — currently `purple`, `corporate` and `nitro`, served by the backend at `/_themes/{name}/theme.css` straight from disk, never built) overrides those variables and adds the visual styling; `Data.theme` selects the active theme (empty = none/base only) and the site editor can switch it, choosing from the theme folders found on disk. Vue may add per-component styles on top where needed. The corporate and nitro themes switch palettes automatically via `prefers-color-scheme` (corporate is light-first with a matching dark palette; nitro a warm light-grey page or, in dark mode, a deep violet one — its dark banner and orange accents carry over unchanged); purple (dusk) uses one fixed palette for everyone. Themes may restyle structural details the base leaves plain — heading colors and underlines, list markers, nav treatment, brand sizing. A theme folder may also ship a **banner design** (`banner.css` + `banner.svg`), selectable per page independently of the active theme. The banner artwork has scroll parallax: pagerite.js sets the `--pry` scroll parameter on `<html>` (event-driven, so it is still when the page is idle), the banner contents drift within their window (with scale overscan so no edge shows), and designs may key their own effects off the same parameter — purple's sun rises as you scroll.
+- Fonts, the shared stylesheet and pygments styles live under `frontend/src/assets/` and are emitted as hashed assets under `/_assets/` (Source Serif 4 for headings, Source Sans 3 for body, Fira Code for code by default; Fraunces, Literata, Cormorant, Playfair Display, Inter, Montserrat, Cause, Exo 2 and New Rocker kept as woff2 options with local `@font-face`, variable-weight where available). No third-party requests.
 
 ## Editing
 
 - Editing happens **in place**, in two modes opened by two pens:
-  - **Page mode** — the 🖊️ next to a page's heading (including 404s, which
-    is how new pages start) opens a CodeMirror Markdown editor docked to
-    the left of the article: the host sits inside `#content` (below the
-    banner, never over the footer), the content shifts right and the
-    sidebar hides while editing. Preview renders server-side per keystroke
-    (no debouncing) straight into the visible article's heading and body.
-  - **Site mode** — the 🖊️ on the banner opens a panel with the site
-    **brand** (applied to the header live), a **theme** selector (swapping
-    the theme stylesheet in place), **font** picks (heading/body/brand —
-    stored as plain `:root` rows inside the custom CSS, referencing the base
-    stylesheet's per-family font variables), a **site-wide custom CSS** field (injected
-    into `<style id="pagerite-user">` in the live page head and swapped during
-    fetch-navigation), the page's **banner design** selector (inherit /
-    none / any design found on disk, inherited by children), the page's
-    **banner HTML** field (supplementing the design, previewed into the
-    real banner region, so you see exactly which banner you're editing) and
-    the **structure tree**. Everything saves immediately as you edit — no
-    save button, no edit mode.
-- Clicking a pen again closes the editor (without saving; a dirty preview
-  reloads the page). The pens are `<button>`s wired up by `pagerite.js` —
-  editing is an action, not a navigation. The editor's WebSocket
-  **reconnects automatically** with local text and pending saves preserved.
-  (All users are trusted authors for now; access control later with
-  SSO.)
-- **CodeMirror 6** for Markdown editing (no WYSIWYG), title/published
-  controls.
-  Images can be pasted straight into the editor or chosen via a file
-  input: they upload to the content store (`PUT /_api/files/...`) and
-  insert `![alt](/_f/hash.ext)` at the cursor.
-- The **structure panel** (vue-draggable tree of the whole site, in site
-  mode) covers page management: reorder any menu level, drag across
-  sections, add, delete (two clicks: the button arms, then deletes — no
-  dialogs). Every node is a real label — content-less category rows offer
-  a ➕ to give them a landing page.
-  Deleting a category removes only its landing page (the label and its
-  subpages stay). Every non-empty list ends with a ➕ row that starts a
-  new page as a local-only tree row at that level; the row can be dragged
-  into place before its title and slug are filled in and is persisted only
-  on commit. While dragging, these ➕ rows double as "end of this list"
-  drop targets; dropping ON the lower part of a row makes the page that
-  row's first child (even a leaf's, creating a sublist), while a row's
-  exposed top edge inserts a sibling before it. A dragged row's
-  indentation previews the target list's depth. Rows are always
-  editable: titles save while typing, slug edits commit on blur/Enter
-  since they rename the path (moving the whole subtree). The front page
-  is the root row with an empty slug — renaming it away leaves no front
-  page ("/" redirects to the first nav item), and giving another
-  top-level row the empty slug makes it the front page.
-- Preview and saving go over a **WebSocket** (`/_api/ws/editor`) with a
-  stateless JSON protocol (`open`/`render`/`save`; on save all fields are
-  optional and absent ones keep their old values, `move_from` renames),
-  avoiding REST polling and races. Rendering always stays server-side.
-- A REST API also exists for scripting, all under `/_api/`:
-  `GET pages` (the full tree), `PUT/DELETE pages/{path}`,
-  `GET/PUT settings` (site brand, theme and custom CSS), `POST structure`
-  (reorder/move/retitle), file upload/removal via `PUT/DELETE files/{name}`.
-- On startup, seed pages from `pagerite/seed.py` are added **only if
-  missing** — existing user content is never overwritten.
+  - **Page mode** — the 🖊️ next to a page's heading (including 404s, which is how new pages start) opens a CodeMirror Markdown editor docked to the left of the article: the host sits inside `#content` (below the banner, never over the footer), the content shifts right and the sidebar hides while editing. Preview renders server-side per keystroke (no debouncing) straight into the visible article's heading and body.
+  - **Site mode** — the 🖊️ on the banner opens a panel with the site **brand** (applied to the header live), a **theme** selector (swapping the theme stylesheet in place), **font** picks (heading/body/brand — stored as plain `:root` rows inside the custom CSS, referencing the base stylesheet's per-family font variables), a **site-wide custom CSS** field (injected into `<style id="pagerite-user">` in the live page head and swapped during fetch-navigation), the page's **banner design** selector (inherit / none / any design found on disk, inherited by children), the page's **banner HTML** field (supplementing the design, previewed into the real banner region, so you see exactly which banner you're editing) and the **structure tree**. Everything saves immediately as you edit — no save button, no edit mode.
+- Clicking a pen again closes the editor (without saving; a dirty preview reloads the page). The pens are `<button>`s wired up by `pagerite.js` — editing is an action, not a navigation. The editor's WebSocket **reconnects automatically** with local text and pending saves preserved. (All users are trusted authors for now; access control later with SSO.)
+- **CodeMirror 6** for Markdown editing (no WYSIWYG), title/published controls. Images can be pasted straight into the editor or chosen via a file input: they upload to the content store (`PUT /_api/files/...`) and insert `![alt](/_f/hash.ext)` at the cursor.
+- The **structure panel** (vue-draggable tree of the whole site, in site mode) covers page management: reorder any menu level, drag across sections, add, delete (two clicks: the button arms, then deletes — no dialogs). Every node is a real label — content-less category rows offer a ➕ to give them a landing page. Deleting a category removes only its landing page (the label and its subpages stay). Every non-empty list ends with a ➕ row that starts a new page as a local-only tree row at that level; the row can be dragged into place before its title and slug are filled in and is persisted only on commit. While dragging, these ➕ rows double as "end of this list" drop targets; dropping ON the lower part of a row makes the page that row's first child (even a leaf's, creating a sublist), while a row's exposed top edge inserts a sibling before it. A dragged row's indentation previews the target list's depth. Rows are always editable: titles save while typing, slug edits commit on blur/Enter since they rename the path (moving the whole subtree). The front page is the root row with an empty slug — renaming it away leaves no front page ("/" redirects to the first nav item), and giving another top-level row the empty slug makes it the front page.
+- Preview and saving go over a **WebSocket** (`/_api/ws/editor`) with a stateless JSON protocol (`open`/`render`/`save`; on save all fields are optional and absent ones keep their old values, `move_from` renames), avoiding REST polling and races. Rendering always stays server-side.
+- A REST API also exists for scripting, all under `/_api/`: `GET pages` (the full tree), `PUT/DELETE pages/{path}`, `GET/PUT settings` (site brand, theme and custom CSS), `POST structure` (reorder/move/retitle), file upload/removal via `PUT/DELETE files/{name}`.
+- On startup, seed pages from `pagerite/seed.py` are added **only if missing** — existing user content is never overwritten.

docs/editing.md

@@ -0,0 +1,30 @@
+# Editing interface
+
+The Vue editor is a single tabbed `EditorShell.vue` mounted in a host div created inside the static document.
+
+## Tabs
+
+The shell hosts four kept-alive tabs (ordered site-wide first — site, structure — then, after a visual break, the per-page tabs — article, banner):
+
+- `PageEditor.vue` — CodeMirror + server-rendered preview over WebSocket `/_api/ws/editor`, previewing into the visible article; editor scroll drives the article scroll — while any editor is open the window scroll is locked (`body.editing`), the panel exactly fills the available window height, and only `#main` scrolls; a format bar offers Markdown helpers — bold/italic/code/link/table/image upload, with Ctrl/Cmd-B/I/S bindings — for the hard-to-remember syntax. Edits content and title only, never the path.
+- `BannerEditor.vue` — per-page banner HTML + banner design selector, previewed into `#page-banner`.
+- `SiteEditor.vue` — site brand + optional custom brand HTML with image/video upload + theme selector + font picker + favicon upload — clicking the preview tile picks a new one — + site-wide custom CSS, CSS injected into `<head id="pagerite-user">`.
+- `StructureEditor.vue` — the vue-draggable structure tree with always-editable title/slug inputs per row.
+
+Media uploads everywhere use the image icon buttons (pasting into the editor works too). The article, banner and site-settings pens are shorthands that open the shell on the matching tab; once open, clicking a pen switches tabs (and retargets the editors to the current page) instead of closing/remounting. The close button in the tab bar closes the shell (Escape too); tabs have no close buttons of their own. Closing only HIDES the shell — the Vue app stays mounted, so page-editor state (unsaved text included) survives until a real page reload; saving there is explicit (Ctrl+S) and refreshes the page regions in place. Admin panels never reload the page.
+
+In-place page re-rendering shared by the banner/site/structure tabs lives in `swapdoc.js` (`runScripts`/`loadPlain`: fetch a page, swap the dynamic regions, replaceState). Placeholder texts are reserved for showing the actual default in effect when a field is left empty (e.g. the pending row's slug derived from its title); labels and help are real elements or tooltips, never placeholders.
+
+## Saving behavior
+
+Everything saves immediately as you edit (brand/title/CSS debounced, slug on commit since it renames the path), theme change swaps the stylesheet in place, tree rows navigate in place without transitions when focused, and the front page is a root-only row whose empty slug is editable like any other.
+
+Every non-empty list (and the root) ends with a non-draggable plus footer row (vuedraggable `#footer` slot): clicking it starts a new pending page at that level (its slug placeholder shows the slug derived live from the title being typed), and while dragging it is the list's "end of list" drop target. Committing a pending page PUTs it with empty markdown (creates an empty page that renders with its title — saving never deletes; deletion is the page editor's explicit choice: saving trimmed-empty text issues a REST DELETE), then switches to the page editor tab for the actual writing.
+
+Dropping ON the lower part of a row moves the page under that row (the child list's container invisibly overlaps its own row's bottom via negative margin — Sortable inserts it as the first child natively), while a row's exposed top edge inserts a sibling before it. Row indentation is structural (each nested list margin-indents itself), so a dragged row previews its whole subtree at the target list's depth.
+
+The shell is dynamic-imported onto the content page by pagerite.js when an edit pen is clicked (the pens are injected by pagerite.js after the session validates; they carry `data-editor-src`/`data-editor-css`/`data-editor-mode`). In dev, modules load from the Vite dev server (`PAGERITE_VITE_URL`), in prod from the hashed build assets resolved via `frontend-build/.vite/manifest.json`.
+
+`vite.config.js` sets `appType: 'mpa'` (no SPA fallback) and builds with `manifest: true`, `assetsDir: '_/assets'` (so the build mirrors the URL space; `frontend/public/favicon.ico` lands at the build root and is served at `/favicon.ico`). JS inputs are `src/main.js` and `src/pagerite.js`, plus `src/assets/pagerite.css` as a separate stylesheet entry; theme and banner-design CSS are NOT built — they live in `pagerite/themes/{name}/` and are served by the backend. There is no `index.html` source (it would shadow `/` and turn missing dev paths into an empty Vue shell). All outputs are ES modules. The build sets `preserveEntrySignatures: 'exports-only'` because main.js is consumed via dynamic `import()` for its `openEditor`/`closeEditor` exports — Vite app builds otherwise strip unused entry exports, leaving dead edit pens. In dev the backend links theme/banner-design stylesheets like in prod (`/_themes/...`); only the base CSS is Vite-injected from JS, and pagerite.js then re-appends the `#pagerite-theme`/`#pagerite-banner`/`#pagerite-user` elements to restore the canonical order (base < theme < design < custom CSS). In production all page assets are inlined instead (styles as `<style id="pagerite-…">` in `<head>`, scripts at the end of the body). Theme switches in the site editor swap the `#pagerite-theme` element in place — the link href in dev, the inline style's text (fetched from `/_themes/...`) in prod.
+
+`vite-plugin-fastapi.js` has an auto-upgrade marker — edit `vite.config.js`, not the plugin.

docs/frontend-runtime.md

@@ -0,0 +1,27 @@
+# Frontend runtime
+
+The public page runtime lives in `frontend/src/`.
+
+## `main.js`
+
+Vue editor app entry, mounts the tabbed `EditorShell`. See `docs/editing.md` for the editor UI.
+
+## `pagerite.js`
+
+Public page entry; runs fetch-navigation (backed by an in-memory page cache: every visible internal link is fetched once at load and clicks are then served from JS with no fetch — the current page itself is not refetched, it enters the cache when navigated to — and the editors' `loadPlain` keeps the cache current via a `pagerite:page-fetched` event; articles are `cache-control: no-cache` on the wire), scroll-reveal, OverlayScrollbars on `document.body` (floating, auto-hiding scrollbars that never reserve layout space or shift the page when appearing; native scroll APIs like `window.scrollTo` keep working; themed via the `--os-*` variables in pagerite.css), brand shrink-to-fit (the themed size is the maximum; JS reduces the font-size so a long brand or narrow viewport still fits one line), nav condense-to-fit (the top nav stays on one row: link gaps shrink first, then the side padding, then the font size; `flex-wrap: wrap` remains the no-JS fallback), code copy buttons, and the auth check.
+
+It first probes `GET /auth/api/settings` to detect whether Paskia SSO is available, then `GET /_api/settings` to learn the current session's admin status. The same reverse proxy that gates `/_api` returns 401 for anonymous users, 403 for users without the admin permission, and 200 for admins. When Paskia is detected, a login link (anonymous) or profile link (logged in) is shown in the banner corner; both are plain `<a href="/auth/">` links (Paskia does not support being iframed, so we navigate normally), and a `pageshow` handler re-probes auth when history navigation restores a cached page. Admins also get the page/banner edit pens and a site-settings pen, plus a `modulepreload` warm-up of the editor bundle (the hashed asset is immutable, so it costs nothing). If no Paskia SSO is detected (dev/no proxy), editing is left open. Pages themselves render identically for everyone; the real gate is the auth proxy in front of all of `/_api`.
+
+Asset wiring differs by mode. In dev the backend links the Vite dev-server URLs (`pagerite:editor-src`/`-css`/`pagerite:analytics-src` meta tags, `<link>` stylesheets) and Vite injects the entry CSS from JS for hot reloads. In production there are no pagerite meta tags: all page assets are inlined into the document — stylesheets as `<style>` elements in `<head>` (fixed order: base, theme, banner design, entry sheets, custom CSS last), module scripts as inline `<script>`s at the end of the body (relative chunk imports are rewritten to absolute `/_assets/` paths) — and the on-demand bundles' URLs ride in a `<script type="application/json" id="pagerite-assets">` config. The editor bundle always stays external, imported on demand when a pen is opened. Every stylesheet element carries a stable id so fetch-navigation and the site editor can sync `<head>` positionally across swaps (the analytics sheet exists on `/_a` only and is added/removed as you navigate). The analytics entry is inlined into the `/_a` page itself; pagerite.js re-creates that script element after fetch-navigating there (inline scripts don't execute on a DOM swap) and calls the module's exposed unmount before swapping away.
+
+## `assets/`
+
+Shared styles and data files built by Vite and served hashed under `/_assets/`: `pagerite.css` (base layout + conservative variables), `pygments.css`, and `fonts/` (self-hosted Source Sans 3/Source Serif 4/Fraunces/Literata/Cormorant/Playfair Display/Inter/Montserrat/Fira Code/Cause/Exo 2/New Rocker variable woff2).
+
+The `::view-transition*` block at the end of `pagerite.css` (from termotohtori.fi) is fragile — do not tweak. Themes and banner designs are NOT built — they live in `pagerite/themes/{name}/` and are served by the backend. See `docs/themes-and-assets.md` for details.
+
+Vite builds ES-module `.js` outputs; in dev the backend links them as `<script type="module">` (module scripts defer by default), in production it inlines them at the end of the body.
+
+## Database file
+
+The database file is `pagerite.kantadb` in the cwd (`PAGERITE_DB` overrides); gitignored. Do not delete it without asking.

docs/overview.md

@@ -0,0 +1,5 @@
+# Pagerite overview
+
+Pagerite is a single-user CMS/blog. FastAPI serves HTML rendered in Python with html5tagger; content is persisted in a kanta database and rendered on the fly per request. Vue is used only for interactive bits (editing tools), not for the public pages.
+
+See `docs/design-principles.md` for the high-level design and the other `docs/*.md` files for implementation details.

docs/themes-and-assets.md

@@ -0,0 +1,37 @@
+# Themes and assets
+
+## Built assets
+
+Files under `frontend/src/assets/` are built by Vite and served hashed under `/_assets/`:
+
+- `pagerite.css` — base layout + conservative variables.
+- `pygments.css` — Pygments token styles mapped onto the `--code-*` variables.
+- `fonts/` — self-hosted variable woff2 files for Source Sans 3, Source Serif 4, Fraunces, Literata, Cormorant, Playfair Display, Inter, Montserrat, Fira Code, Cause, Exo 2 and New Rocker.
+
+The `::view-transition*` block at the end of `pagerite.css` (from termotohtori.fi) is fragile — do not tweak.
+
+## Themes
+
+Themes are folders in `pagerite/themes/{name}/` containing `theme.css` and/or `banner.css` (+ `banner.svg` artwork and any extra assets the CSS references, like summer's `grass.svg`). They are served by the backend at `/_themes/{name}/...` — read from disk per request (etag by mtime), never built, so on-disk edits show on the next page load even in prod.
+
+`Data.theme` selects the active theme (empty = none/base only) and the site editor can switch it, choosing from the theme folders found on disk. Vue may add per-component styles on top where needed.
+
+Current themes:
+
+- `purple` — dark dusk palette with Fraunces/Literata and a tilted oversized gradient brand.
+- `corporate` — light-first with automatic `prefers-color-scheme` dark mode, Montserrat/Inter and a huge solid brand.
+- `nitro` — racing/HUD style following `prefers-color-scheme` (warm light-grey page, deep violet in dark), Montserrat/Literata, black as an accent only, a straight orange blade under the banner, and an orange racing-tab nav clipped with a bezier `shape()`.
+- `summer` — light playful meadow, one palette sampled from its illustrated `banner.svg` (sky/grass/sun/flower pink), Fraunces/Literata, a tilted gradient brand, flower bullets, and a layered-parallax banner (sun rises, clouds drift, nearer hills move less) with idle animations (swaying flowers, floating clouds, breathing sun glow) wrapped in `prefers-reduced-motion: no-preference`.
+
+## Banner designs
+
+A theme folder may also ship a banner design (`banner.css` + `banner.html` arbitrary markup or `banner.svg`), selectable per page independently of the active theme. Standalone banner designs (no theme.css) ship as:
+
+- `eyes` — a canvas critter in the grass.
+- `stars` — a drifting starfield.
+
+The banner artwork has scroll parallax: pagerite.js sets the `--pry` scroll parameter on `<html>` (event-driven, so it is still when the page is idle), the banner contents drift within their window (with scale overscan so no edge shows), and designs may key their own effects off the same parameter.
+
+## Stylesheet order
+
+The backend emits the stylesheets in a fixed order — base (Vite build), theme, banner design, entry sheets, custom CSS last — each with a stable id so fetch-navigation and the site editor can sync them in place. In dev they are `<link>`s (the base is Vite-injected from JS instead); in production they are inlined as `<style>` elements. The base stylesheet's `--font-brand` defaults to `var(--font-heading)`.

frontend/package.json

@@ -18,8 +18,8 @@
     "@codemirror/view": "^6.43.8",
     "@lezer/highlight": "^1.2.3",
     "codemirror": "^6.0.2",
+    "country-flag-icons": "^1.6.20",
     "overlayscrollbars": "^2.16.0",
-    "paskia": "file:../../paskia/paskia-js",
     "transliteration": "^2.6.1",
     "vue": "^3.5.26",
     "vuedraggable": "^4.1.0"

frontend/src/AnalyticsView.vue

@@ -0,0 +1,462 @@
+<script setup>
+// Analytics viewer rendered as a normal page inside #main. Receives live
+// analytics data over /_api/ws/analytics (admin-gated by the auth proxy) and
+// renders totals, smoothed visit/views curves, a transition map, and recent
+// visit/crawler tables. Read-only.
+// See docs/analytics.md for the data format.
+import { computed, onMounted, onUnmounted, ref, watch } from 'vue'
+import { RANGES } from './analytics/time.js'
+import {
+  calcReadStats,
+  calcTotalViews,
+  copyIp,
+  copyList,
+  formatCount,
+  formatAbuseRows,
+  formatCrawlerRows,
+  formatVisitRows,
+} from './analytics/format.js'
+import TrailLink from './TrailLink.vue'
+import VisitorCell from './VisitorCell.vue'
+import TransitionGraph from './TransitionGraph.vue'
+import VisitorCharts from './VisitorCharts.vue'
+
+const ABUSE_MAX_LINES = 5
+
+const data = ref(null)
+const pageTree = ref(null)
+const error = ref('')
+const now = ref(Date.now())
+let ws = null
+let reconnectTimeout = null
+let timeInterval = null
+
+// The initial range comes from the URL hash (shareable links); without one,
+// it is derived from the first analytics snapshot: day when the recorded
+// history is shorter than 24 h, week otherwise.
+const hashRange = location.hash.slice(1)
+const range = ref(RANGES[hashRange] ? hashRange : 'week')
+let rangePinned = Boolean(RANGES[hashRange])
+
+function connectAnalytics() {
+  if (ws) return
+  const proto = location.protocol === 'https:' ? 'wss:' : 'ws:'
+  ws = new WebSocket(`${proto}//${location.host}/_api/ws/analytics`)
+  ws.onopen = () => { error.value = '' }
+  ws.onmessage = (event) => {
+    try {
+      data.value = JSON.parse(event.data)
+      if (!rangePinned) {
+        rangePinned = true
+        const starts = (data.value?.visits || [])
+          .map((v) => Date.parse(v.start))
+          .filter((t) => !Number.isNaN(t))
+        if (starts.length && Date.now() - Math.min(...starts) < 24 * 3600 * 1000) {
+          range.value = 'day'
+        }
+      }
+    } catch {
+      error.value = 'analytics data could not be loaded'
+    }
+  }
+  ws.onerror = () => {
+    error.value = 'analytics data could not be loaded'
+  }
+  ws.onclose = () => {
+    ws = null
+    reconnectTimeout = setTimeout(connectAnalytics, 2000)
+  }
+}
+
+onMounted(async () => {
+  connectAnalytics()
+  now.value = Date.now()
+  timeInterval = setInterval(() => { now.value = Date.now() }, 1000)
+  // The site tree for the transition map (all pages in menu order). Not
+  // fatal: without it the map just narrows to pages seen in transitions.
+  try {
+    const res = await fetch('/_api/pages')
+    if (res.ok) pageTree.value = await res.json()
+  } catch { /* map just narrows to pages seen in transitions */ }
+})
+
+onUnmounted(() => {
+  if (reconnectTimeout) clearTimeout(reconnectTimeout)
+  if (timeInterval) clearInterval(timeInterval)
+  if (ws) {
+    ws.onclose = null
+    ws.close()
+    ws = null
+  }
+})
+
+const visits = computed(() => data.value?.visits || [])
+const totalViews = computed(() => calcTotalViews(data.value?.views))
+const readStats = computed(() => calcReadStats(visits.value))
+
+// Keep the URL shareable when the range changes.
+watch(range, (r) => {
+  const url = new URL(location.href)
+  url.hash = r
+  history.replaceState(null, '', url)
+})
+
+const clients = computed(() => data.value?.clients || {})
+const visitRows = computed(() => formatVisitRows(visits.value, clients.value, pageTree.value, now.value))
+const crawlers = computed(() => data.value?.crawlers || [])
+const crawlerRows = computed(() => formatCrawlerRows(crawlers.value, clients.value, pageTree.value, now.value))
+const abuseRows = computed(() => formatAbuseRows(data.value?.abuse || [], clients.value, now.value))
+
+</script>
+
+<template>
+  <div class="analytics-view">
+    <div class="analytics-panel">
+      <header>
+        <h1>Analytics</h1>
+        <nav class="ranges">
+          <button v-for="(r, key) in RANGES" :key="key" type="button"
+                  :class="{ active: range === key }" @click="range = key">
+            {{ r.label }}
+          </button>
+        </nav>
+        <a href="/" class="close" title="home">✕</a>
+      </header>
+      <p v-if="error" class="error">⚠️ {{ error }}</p>
+      <p v-else-if="!data" class="loading">loading…</p>
+      <template v-else>
+        <section class="totals">
+          <div><strong :title="String(visits.length)">{{ formatCount(visits.length) }}</strong> visits</div>
+          <div><strong :title="String(totalViews)">{{ formatCount(totalViews) }}</strong> page views</div>
+          <div><strong>{{ readStats.avgMinPerVisit }}</strong> min/visit</div>
+          <div><strong>{{ readStats.avgArticleMedianMin }}</strong> min article read</div>
+        </section>
+
+        <VisitorCharts :data="data" :range="range" />
+        <TransitionGraph :data="data" :range="range" :page-tree="pageTree" />
+
+        <section>
+          <h2>Recent visits</h2>
+          <div v-if="visitRows.length" class="visit-table-wrap">
+            <table class="visit-table">
+              <thead>
+                <tr>
+                  <th>trail</th>
+                  <th>visitor</th>
+                  <th class="last-seen">last seen</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr v-for="(v, i) in visitRows" :key="i">
+                  <td class="trail">
+                    <TrailLink v-if="v.refererStep" :step="v.refererStep" @close="$emit('close')" />
+                    <span v-if="v.utm && v.utm !== '—'" class="utm-tag small muted" :title="v.utmTitle">{{ v.utm }}</span>
+                    <TrailLink v-for="(s, si) in v.trail" :key="si" :step="s" @close="$emit('close')" />
+                  </td>
+                  <VisitorCell
+                    :ip="v.ip"
+                    :ip-display="v.ipDisplay"
+                    :ua="v.ua"
+                    :ua-raw="v.uaRaw"
+                    :country="v.country"
+                    :city="v.city"
+                    :lang="v.lang"
+                    :lang-display="v.langDisplay"
+                    :is-host="v.isHost"
+                  />
+                  <td class="last-seen muted"
+                      :title="v.lastSeenLocal"
+                      @click="copyList(v.lastSeenIso, $event)">{{ v.lastSeen }}</td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+          <p v-else class="empty">no visits recorded yet</p>
+
+          <div v-if="crawlerRows.length" class="visit-table-wrap">
+            <table class="visit-table">
+              <thead>
+                <tr>
+                  <th>pages crawled</th>
+                  <th>visitor</th>
+                  <th class="last-seen">last seen</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr v-for="(c, i) in crawlerRows" :key="i">
+                  <td class="trail">
+                    <TrailLink v-for="(s, si) in c.pages" :key="si" :step="s" :count="s.count" @close="$emit('close')" />
+                  </td>
+                  <VisitorCell
+                    :ip="c.ip"
+                    :ip-display="c.ipDisplay"
+                    :ua="c.ua"
+                    :ua-raw="c.uaRaw"
+                    :country="c.country"
+                    :city="c.city"
+                    :lang="c.lang"
+                    :lang-display="c.langDisplay"
+                    :is-host="c.isHost"
+                  />
+                  <td class="last-seen muted"
+                      :title="c.lastSeenLocal"
+                      @click="copyList(c.lastSeenIso, $event)">{{ c.lastSeen }}</td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+          <p v-else class="empty">no crawler hits recorded yet</p>
+
+          <div v-if="abuseRows.length" class="visit-table-wrap">
+            <table class="visit-table">
+              <thead>
+                <tr>
+                  <th>paths abused</th>
+                  <th>visitor</th>
+                  <th class="last-seen">last seen</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr v-for="(a, i) in abuseRows" :key="i">
+                  <td class="trail abuse-list clickable-list"
+                      @click="copyList(a.allPaths, $event)">
+                    <div class="abuse-items">
+                      <span v-for="(p, pi) in a.paths.slice(0, ABUSE_MAX_LINES)" :key="pi"
+                            class="inline-item">
+                        <small v-if="p.count > 1" class="muted">{{ formatCount(p.count) }}×</small>{{ p.path }}
+                      </span>
+                      <small v-if="a.paths.length > ABUSE_MAX_LINES" class="muted">+{{ a.paths.length - ABUSE_MAX_LINES }} more</small>
+                    </div>
+                  </td>
+                  <VisitorCell
+                    :ip="a.ip"
+                    :ip-display="a.ipDisplay"
+                    :ua="a.ua"
+                    :ua-raw="a.uaRaw"
+                    :country="a.country"
+                    :city="a.city"
+                    :lang="a.lang"
+                    :lang-display="a.langDisplay"
+                    :is-host="a.isHost"
+                    :variant-count="a.clientCount"
+                  />
+                  <td class="last-seen muted"
+                      :title="a.lastSeenLocal"
+                      @click="copyList(a.lastSeenIso, $event)">{{ a.lastSeen }}</td>
+                </tr>
+              </tbody>
+            </table>
+          </div>
+        </section>
+      </template>
+    </div>
+  </div>
+</template>
+
+<style scoped>
+.analytics-view {
+  min-height: 100vh;
+  background: var(--bg, Canvas);
+  color: var(--text, CanvasText);
+}
+
+.analytics-panel {
+  margin: 0;
+  width: 100%;
+  /* Same 1.25rem side spacing as main's article padding. */
+  padding: 1.5rem 1.25rem 4rem;
+}
+
+.analytics-panel header {
+  display: flex;
+  align-items: center;
+  gap: 1rem;
+}
+
+.analytics-panel h1 {
+  margin: 0;
+  font-size: 1.4rem;
+}
+
+.ranges {
+  display: flex;
+  gap: 0.25rem;
+  margin-left: auto;
+}
+
+.ranges button {
+  padding: 0.2rem 0.7rem;
+  font: inherit;
+  font-size: 0.9rem;
+  color: var(--muted);
+  background: none;
+  border: 1px solid var(--line);
+  border-radius: 1rem;
+  cursor: pointer;
+}
+
+.ranges button:hover { color: var(--text); }
+
+.ranges button.active {
+  color: var(--text);
+  border-color: var(--accent);
+}
+
+.close {
+  padding: 0 0.3rem;
+  background: none;
+  border: none;
+  color: var(--muted);
+  font-size: 1.2rem;
+  cursor: pointer;
+}
+.close:hover { color: var(--text); }
+
+.analytics-panel h2 {
+  margin: 0 0 0.6rem;
+  font-size: 1rem;
+  color: var(--muted);
+}
+
+.analytics-panel section {
+  margin-top: 1.8rem;
+}
+
+.analytics-view a {
+  color: var(--text);
+  text-decoration: none;
+}
+.analytics-view a:hover { color: var(--accent); }
+
+.analytics-view :deep(.muted) { color: var(--muted); }
+.analytics-view :deep(.small) { font-size: 0.75em; }
+
+.totals {
+  display: flex;
+  gap: 2rem;
+  font-size: 1.1rem;
+}
+.totals strong { font-size: 1.5rem; }
+
+.visit-table-wrap {
+  overflow-x: auto;
+}
+
+.visit-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 0.9rem;
+  line-height: 1.3;
+}
+
+.visit-table th,
+.visit-table td {
+  padding: 0.25rem 0.5rem;
+  border-bottom: 1px solid var(--line);
+  text-align: left;
+  vertical-align: top;
+}
+
+.visit-table th {
+  color: var(--muted);
+  font-weight: normal;
+  text-transform: lowercase;
+  position: sticky;
+  top: 0;
+  background: var(--bg, Canvas);
+}
+
+.visit-table .last-seen {
+  width: 6rem;
+  text-align: right;
+  white-space: nowrap;
+  cursor: pointer;
+}
+
+.visit-table .trail {
+  max-width: 20rem;
+  overflow-wrap: break-word;
+}
+
+.visit-table .trail a,
+.visit-table .trail-link {
+  display: inline-block;
+  max-width: 8rem;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  vertical-align: bottom;
+}
+
+.visit-table .trail > * + * {
+  margin-left: 0.5rem;
+}
+
+.visit-table .utm-tag {
+  display: inline-block;
+  max-width: 100%;
+  padding: 0.05rem 0.4rem;
+  border: 1px solid var(--line);
+  border-radius: 0.25rem;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  vertical-align: bottom;
+}
+
+.visit-table .clickable-list {
+  cursor: pointer;
+  max-width: 22rem;
+}
+
+.visit-table .abuse-items {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.15rem 0.5rem;
+  align-items: baseline;
+}
+
+.visit-table .inline-item {
+  max-width: 18rem;
+  min-width: 0;
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  word-break: keep-all;
+  hyphens: none;
+}
+
+.visit-table :deep(.clickable-ip),
+.visit-table .clickable-list,
+.visit-table .last-seen {
+  cursor: pointer;
+  position: relative;
+}
+
+.visit-table :deep(.copy-popup) {
+  position: absolute;
+  bottom: calc(100% + 0.25rem);
+  left: 50%;
+  transform: translateX(-50%);
+  padding: 0.15rem 0.4rem;
+  background: var(--text, CanvasText);
+  color: var(--bg, Canvas);
+  border-radius: 0.25rem;
+  font-size: 0.75rem;
+  white-space: nowrap;
+  pointer-events: none;
+  z-index: 10;
+}
+
+.crawler-top-uas {
+  font-size: 0.9rem;
+  margin-bottom: 0.6rem;
+}
+
+.crawler-top-uas strong {
+  color: var(--muted);
+}
+
+.empty, .loading, .error { color: var(--muted); }
+.error { color: var(--error, #c00); }
+</style>

frontend/src/SiteEditor.vue

@@ -242,30 +242,43 @@ async function saveSettings(opts = {}) {
 async function onThemeChange() {
   await saveSettings()
   // Theme CSS is backend-served at /_themes/{theme}/theme.css in both dev
-  // and prod: swap the link in place, then re-render (the theme's default
-  // banner design and the page's stylesheet links may change with it).
-  let link = document.getElementById('pagerite-theme')
+  // and prod, but rendered differently: a <link> in dev, an inline <style>
+  // in prod. Swap it in place, then re-render (the theme's default banner
+  // design and the page's stylesheets may change with it).
+  let el = document.getElementById('pagerite-theme')
+  const url = `/_themes/${theme.value}/theme.css`
   if (theme.value) {
-    const href = `/_themes/${theme.value}/theme.css`
-    if (link) {
-      link.href = href
-    } else {
+    if (el?.tagName === 'STYLE') {
+      el.textContent = await (await fetch(url)).text()
+    } else if (el) {
+      el.href = url
+    } else if (import.meta.env.DEV) {
       // Re-create after "none": keep base < theme < design < custom CSS.
-      // In dev there is no #pagerite-base link (the base is a
+      // In dev there is no #pagerite-base element (the base is a
       // Vite-injected <style>), so anchor to the next sheet instead of
       // prepending before the base styles.
-      link = document.createElement('link')
-      link.rel = 'stylesheet'
-      link.id = 'pagerite-theme'
-      link.href = href
+      el = document.createElement('link')
+      el.rel = 'stylesheet'
+      el.id = 'pagerite-theme'
+      el.href = url
       const before = document.getElementById('pagerite-base')?.nextSibling
         ?? document.getElementById('pagerite-banner')
         ?? document.getElementById('pagerite-user')
-      if (before) before.before(link)
-      else document.head.append(link)
+      if (before) before.before(el)
+      else document.head.append(el)
+    } else {
+      // Prod: inline <style>, fetched from the backend-served URL.
+      el = document.createElement('style')
+      el.id = 'pagerite-theme'
+      el.textContent = await (await fetch(url)).text()
+      const before = document.getElementById('pagerite-base')?.nextSibling
+        ?? document.getElementById('pagerite-banner')
+        ?? document.getElementById('pagerite-user')
+      if (before) before.before(el)
+      else document.head.append(el)
     }
-  } else if (link) {
-    link.remove()
+  } else if (el) {
+    el.remove()
   }
   loadPlain(path.value)
 }
@@ -561,7 +574,7 @@ onUnmounted(() => {
       </div>
     </section>
 
-    <section class="block" @paste="onBrandPaste">
+    <section class="block grow" @paste="onBrandPaste">
       <div class="block-head">
         <span class="field-label">brand code (replaces the brand link)</span>
         <button
@@ -581,7 +594,7 @@ onUnmounted(() => {
       <div ref="brandEl" class="brand-cm" />
     </section>
 
-    <section class="block">
+    <section class="block grow">
       <div class="block-head">
         <span class="field-label">custom CSS (applies to every page, on top of the theme)</span>
       </div>
@@ -595,6 +608,7 @@ onUnmounted(() => {
   display: flex;
   flex-direction: column;
   overflow-y: auto;
+  background: var(--surface);
 }
 
 .block {
@@ -606,6 +620,13 @@ onUnmounted(() => {
   background: var(--surface);
 }
 
+/* Editor blocks (brand HTML, custom CSS) share the leftover panel height
+   equally; their CodeMirror windows fill the block and scroll internally. */
+.block.grow {
+  flex: 1;
+  min-height: 7rem;
+}
+
 .block-head {
   display: flex;
   align-items: center;
@@ -775,42 +796,29 @@ onUnmounted(() => {
   border-color: var(--accent);
 }
 
-/* Small CodeMirror window for the custom brand HTML; scrolls internally. */
-.brand-cm {
-  border: 1px solid var(--line);
-  border-radius: 4px;
-  overflow: hidden;
-}
-
-.brand-cm :deep(.cm-editor) {
-  max-height: 7rem;
-  font-size: 0.85rem;
-}
-
-.brand-cm :deep(.cm-scroller) {
-  overflow: auto;
-}
-
-.brand-cm :deep(.cm-gutters) {
-  display: none;
-}
-
-/* CodeMirror window for site-wide custom CSS. */
+/* CodeMirror windows for the brand HTML and custom CSS: fill the growing
+   block, scroll internally. */
+.brand-cm,
 .css-cm {
+  flex: 1;
+  min-height: 0;
   border: 1px solid var(--line);
   border-radius: 4px;
   overflow: hidden;
 }
 
+.brand-cm :deep(.cm-editor),
 .css-cm :deep(.cm-editor) {
-  max-height: 12rem;
+  height: 100%;
   font-size: 0.85rem;
 }
 
+.brand-cm :deep(.cm-scroller),
 .css-cm :deep(.cm-scroller) {
   overflow: auto;
 }
 
+.brand-cm :deep(.cm-gutters),
 .css-cm :deep(.cm-gutters) {
   display: none;
 }

frontend/src/StructureEditor.vue

@@ -228,23 +228,7 @@ async function commitSlug(node, ev) {
   }
 }
 
-// Two-step delete (no dialogs): the first click arms the row's button for
-// a few seconds, the second actually deletes.
-const arming = ref(null)
-let armTimer = null
-
-function armRemove(node) {
-  if (arming.value === node.path) {
-    clearTimeout(armTimer)
-    arming.value = null
-    removePage(node)
-  } else {
-    arming.value = node.path
-    clearTimeout(armTimer)
-    armTimer = setTimeout(() => { arming.value = null }, 3000)
-  }
-}
-
+// Deletion is immediate, no confirmation.
 async function removePage(node) {
   const res = await fetch(`/_api/pages/${node.path}`, { method: 'DELETE' })
   if (res.ok) {
@@ -267,8 +251,7 @@ async function removePage(node) {
 provide('structureHandlers', {
   current: () => path.value,
   open: navigate,
-  arming: () => arming.value,
-  armRemove,
+  removePage,
   reorder: onReorder,
   titleInput: onTitleInput,
   commitSlug,
@@ -284,7 +267,6 @@ onMounted(() => {
 })
 
 onUnmounted(() => {
-  clearTimeout(armTimer)
   for (const t of Object.values(timers)) clearTimeout(t)
   removeEventListener('pagerite:editor-shown', onEditorShown)
 })

frontend/src/StructureTree.vue

@@ -144,12 +144,11 @@ function onEnd() {
                 v-if="element.has_content || !element.children.length"
                 type="button"
                 class="act del"
-                :class="{ armed: handlers.arming() === element.path }"
                 :title="element.children.length
                   ? 'delete the landing page (the category keeps its subpages)'
                   : 'delete page'"
-                @click="handlers.armRemove(element)"
-              >{{ handlers.arming() === element.path ? 'delete?' : '✕' }}</button>
+                @click="handlers.removePage(element)"
+              >✕</button>
             </span>
           </template>
         </div>
@@ -300,12 +299,6 @@ body.tree-dragging .treelist {
   white-space: nowrap;
 }
 
-/* Two-step delete: the first click arms the button, the second deletes. */
-.act.armed {
-  color: #e06c75;
-  font-weight: 600;
-}
-
 .del:hover {
   color: #e06c75;
 }

frontend/src/TrailLink.vue

@@ -0,0 +1,22 @@
+<script setup>
+import { formatCount } from './analytics/format.js'
+
+defineProps({
+  step: { type: Object, required: true },
+  count: { type: Number, default: 0 },
+})
+
+defineEmits(['close'])
+</script>
+
+<template>
+  <a class="trail-link"
+     :href="step.path"
+     :title="count > 1 ? `${step.title} (${count} hits)` : step.title"
+     :target="step.external ? '_blank' : undefined"
+     :rel="step.external ? 'noopener' : undefined"
+     @click="(e) => { if (!step.external) $emit('close') }">
+    <small v-if="count > 1" class="muted">{{ formatCount(count) }}×</small>
+    <span>{{ step.slug }}</span>
+  </a>
+</template>

frontend/src/TransitionGraph.vue

@@ -0,0 +1,261 @@
+<script setup>
+/**
+ * Radial transition map filtered to the selected time range.
+ *
+ * Transitions are stored per 5-minute bucket (from -> to -> bucket ->
+ * count), so the graph sums the buckets falling inside the selected
+ * range, exactly like the charts and per-page views do.
+ */
+import { computed, onBeforeUnmount, onMounted, ref, shallowRef, watch } from 'vue'
+import { rangeWindow, WEEK } from './analytics/time.js'
+import { formatCount } from './analytics/format.js'
+import {
+  TNODE_W,
+  TNODE_H,
+  BEAD_R,
+  BEAD_SPEED,
+  buildTransitionGraph,
+  filterTransitionsByRange,
+  filterViewsByRange,
+  filterVisitsByRange,
+} from './analytics/transitions.js'
+
+const props = defineProps({
+  data: { type: Object, default: null },
+  range: { type: String, required: true },
+  pageTree: { type: Array, default: null },
+})
+
+const window = computed(() => rangeWindow(props.range))
+
+const visualScale = computed(() => {
+  const { t0, t1 } = window.value
+  if (t0 != null && t1 != null) return WEEK / (t1 - t0)
+  // 'all': scale by the actual data span.
+  const times = new Set()
+  for (const buckets of Object.values(props.data?.views || {})) {
+    for (const k of Object.keys(buckets)) times.add(Date.parse(k))
+  }
+  const arr = [...times]
+  if (arr.length < 2) return 1
+  return WEEK / (Math.max(...arr) - Math.min(...arr))
+})
+
+const filteredData = computed(() => {
+  if (!props.data) return null
+  const { t0, t1 } = window.value
+  return {
+    transitions: filterTransitionsByRange(props.data.transitions, t0, t1),
+    views: filterViewsByRange(props.data.views, t0, t1),
+  }
+})
+
+const filteredVisits = computed(() =>
+  filterVisitsByRange(props.data?.visits, window.value.t0, window.value.t1),
+)
+
+const graph = computed(() =>
+  filteredData.value
+    ? buildTransitionGraph(filteredData.value, props.pageTree, filteredVisits.value, visualScale.value)
+    : null,
+)
+
+// Bead animation: every bead is simulated independently in JS. Each flow
+// (one per edge direction) emits a bead every `interval` seconds; beads
+// travel at BEAD_SPEED along the segment and are dropped at the end.
+// There is deliberately no cap on beads in flight.
+const beads = shallowRef([])
+let rafId = 0
+
+const MAX_BEAD_RATE = 120 // upper bound on total beads per second
+
+const startBeads = (flows) => {
+  cancelAnimationFrame(rafId)
+  beads.value = []
+  if (!flows?.length) return
+  if (matchMedia('(prefers-reduced-motion: reduce)').matches) return
+
+  // Cap the total bead emission rate so a busy range cannot spawn enough
+  // beads to kill the page. Existing per-range time scaling is preserved;
+  // this is only a proportional emergency throttle when the limit is hit.
+  const totalRate = flows.reduce((s, f) => s + 1 / f.interval, 0)
+  const scale = totalRate > MAX_BEAD_RATE ? MAX_BEAD_RATE / totalRate : 1
+
+  const live = [] // { flow, t0 } — one entry per bead in flight
+  const now = performance.now()
+  const emitters = flows.map((flow) => {
+    const interval = (flow.interval / scale) * 1000
+    // Pre-fill the traversal with evenly spaced beads (random phase), so
+    // the flow appears already running instead of starting empty.
+    const phase = Math.random() * interval
+    for (let t = now - (flow.len / BEAD_SPEED) * 1000 + phase; t <= now; t += interval) {
+      live.push({ flow, t0: t })
+    }
+    return { flow, interval, next: now + phase }
+  })
+
+  const tick = (t) => {
+    for (const e of emitters) {
+      while (e.next <= t) {
+        live.push({ flow: e.flow, t0: e.next })
+        e.next += e.interval
+      }
+    }
+    const out = []
+    for (let i = live.length - 1; i >= 0; i--) {
+      const b = live[i]
+      const p = ((t - b.t0) / 1000) * BEAD_SPEED / b.flow.len
+      if (p >= 1) {
+        live.splice(i, 1)
+        continue
+      }
+      out.push({
+        x: b.flow.x1 + (b.flow.x2 - b.flow.x1) * p,
+        y: b.flow.y1 + (b.flow.y2 - b.flow.y1) * p,
+      })
+    }
+    beads.value = out
+    rafId = requestAnimationFrame(tick)
+  }
+  rafId = requestAnimationFrame(tick)
+}
+
+watch(() => graph.value?.flows, startBeads, { immediate: true })
+onBeforeUnmount(() => cancelAnimationFrame(rafId))
+
+// Text in the graph must render at a constant screen size regardless of
+// how far the enlarged graph's viewBox is scaled down to fit the panel:
+// measure the unit→pixel ratio and expose it as --u on the svg, which the
+// font-size rules divide by. Falls back to 1 (raw units) until measured.
+const svgEl = ref(null)
+const pxPerUnit = ref(1)
+let resizeObs = null
+
+function updateScale() {
+  const el = svgEl.value
+  if (el && el.viewBox.baseVal.width) {
+    pxPerUnit.value = el.clientWidth / el.viewBox.baseVal.width
+  }
+}
+
+onMounted(() => {
+  resizeObs = new ResizeObserver(updateScale)
+})
+watch(svgEl, (el) => {
+  resizeObs?.disconnect()
+  if (el) resizeObs?.observe(el)
+})
+watch(() => graph.value?.bounds, updateScale)
+onBeforeUnmount(() => resizeObs?.disconnect())
+
+// Font size (px) that fits a label inside the pill width at the current
+// zoom: ~0.52 em average glyph width, 12 px padding per side, capped.
+const fitPx = (label) =>
+  Math.min(15, (TNODE_W * pxPerUnit.value - 24) / (0.52 * Math.max(label.length, 1)))
+</script>
+
+<template>
+  <section v-if="graph">
+    <svg ref="svgEl" class="tmap" :style="{ '--u': pxPerUnit }" :viewBox="`${graph.bounds.x0} ${graph.bounds.y0} ${graph.bounds.x1 - graph.bounds.x0} ${graph.bounds.y1 - graph.bounds.y0}`"
+         role="img" aria-label="map of transitions between pages">
+      <path v-for="(a, i) in graph.arcs" :key="'a' + i"
+            :d="a.d" class="tarc" />
+      <path v-for="(e, i) in graph.edges" :key="'e' + i"
+            :d="e.d" :class="['tconn', e.external && 'tconn-exit']">
+        <title>{{ e.title }}</title>
+      </path>
+      <circle v-for="(b, i) in beads" :key="'b' + i"
+              :cx="b.x" :cy="b.y" :r="BEAD_R" class="tbead" />
+      <g v-for="(x, i) in graph.extNodes" :key="'x' + i">
+        <a v-if="x.href" :href="x.href" target="_blank" rel="noopener">
+          <title>{{ x.path }}</title>
+          <rect :x="x.x - TNODE_W/2" :y="x.y - TNODE_H/2" :width="TNODE_W" :height="TNODE_H" :rx="TNODE_H/2"
+                :class="['txnode', x.kind === 'source' ? 'txnode-source' : 'txnode-exit']" />
+          <text :x="x.x" :y="x.y - TNODE_H*0.16" class="tnodeslug" dominant-baseline="middle"
+                :style="{ '--slug-px': `${fitPx(x.label)}px` }">{{ x.label }}</text>
+          <text :x="x.x" :y="x.y + TNODE_H*0.24" class="tnodecount" dominant-baseline="middle">{{ formatCount(x.count) }}</text>
+        </a>
+        <g v-else>
+          <title>{{ x.path }}</title>
+          <rect :x="x.x - TNODE_W/2" :y="x.y - TNODE_H/2" :width="TNODE_W" :height="TNODE_H" :rx="TNODE_H/2"
+                :class="['txnode', x.kind === 'source' ? 'txnode-source' : 'txnode-exit']" />
+          <text :x="x.x" :y="x.y - TNODE_H*0.16" class="tnodeslug" dominant-baseline="middle"
+                :style="{ '--slug-px': `${fitPx(x.label)}px` }">{{ x.label }}</text>
+          <text :x="x.x" :y="x.y + TNODE_H*0.24" class="tnodecount" dominant-baseline="middle">{{ formatCount(x.count) }}</text>
+        </g>
+      </g>
+      <g v-for="n in graph.nodes" :key="n.path">
+        <a :href="n.path">
+          <title>{{ n.title }}</title>
+          <rect :x="n.x - TNODE_W/2" :y="n.y - TNODE_H/2" :width="TNODE_W" :height="TNODE_H" :rx="TNODE_H/2" class="tnode" />
+          <text :x="n.x" :y="n.y - TNODE_H*0.16" class="tnodeslug" dominant-baseline="middle"
+                :style="{ '--slug-px': `${fitPx(n.label)}px` }">{{ n.label }}</text>
+          <text :x="n.x" :y="n.y + TNODE_H*0.24" class="tnodecount" dominant-baseline="middle">
+            {{ n.readMin ? `${formatCount(n.views)}×${n.readMin}m` : formatCount(n.views) }}
+          </text>
+        </a>
+        <text v-if="n.crumb" :x="n.x" :y="n.y - TNODE_H/2 - 10"
+              :class="['tnodepath', n.path === '/' && 'tnodepath-home']">{{ n.crumb }}</text>
+      </g>
+    </svg>
+  </section>
+</template>
+
+<style scoped>
+/* Transition map: radial graph of internal page-to-page transitions. */
+.tmap {
+  display: block;
+  width: 100%;
+  max-width: 100%;
+}
+.tmap .tconn {
+  fill: var(--accent);
+  opacity: 0.4; /* uniform, not strength-encoded: width carries that */
+}
+.tmap .tconn-exit {
+  fill: var(--text);
+}
+.tmap .tbead {
+  fill: var(--accent);
+  opacity: 0.85;
+  filter: drop-shadow(0 0 2.5px var(--accent));
+}
+.tmap .txnode {
+  fill: var(--text);
+  stroke: none;
+}
+.tmap .txnode-source { fill: var(--text); }
+.tmap .txnode-exit { fill: var(--text); }
+.tmap .tarc {
+  fill: none;
+  stroke: var(--line);
+  stroke-width: 1;
+}
+.tmap .tnode {
+  fill: var(--accent);
+  stroke: none;
+}
+/* Text renders at a constant screen size: --u (set from JS) is the
+   viewBox-unit → pixel ratio of the rendered svg, so dividing by it makes
+   the sizes independent of how far the graph is scaled down. */
+.tmap .tnodeslug {
+  fill: var(--bg, Canvas);
+  font-size: calc(var(--slug-px, 15px) / var(--u, 1));
+  text-anchor: middle;
+}
+.tmap a { cursor: pointer; }
+.tmap .tnodecount {
+  fill: var(--bg, Canvas);
+  opacity: 0.75;
+  font-size: calc(13px / var(--u, 1));
+  text-anchor: middle;
+}
+.tmap .tnodepath {
+  fill: var(--muted);
+  font-size: calc(11px / var(--u, 1));
+  text-anchor: middle;
+}
+.tmap .tnodepath-home { font-size: calc(17px / var(--u, 1)); }
+
+section { margin-top: 1.8rem; }
+</style>

frontend/src/VisitorCell.vue

@@ -0,0 +1,156 @@
+<script setup>
+// Visitor metadata cell shared by the recent-visits, crawlers, and abuse tables.
+// Displays IP/network/host, country flag/city, UA, and language when available.
+// Clicking the IP copies the full address to the clipboard.
+// ``variantCount`` overrides the UA line to warn when multiple client
+// fingerprints share the same IP (e.g. a scanner rotating UAs).
+import { computed } from 'vue'
+import * as flagSvgs from 'country-flag-icons/string/3x2'
+import { copyIp, formatLang } from './analytics/format.js'
+
+const props = defineProps({
+  ip: { type: String, default: '' },
+  ipDisplay: { type: String, default: '—' },
+  ua: { type: String, default: '' },
+  uaRaw: { type: String, default: '' },
+  country: { type: String, default: '' },
+  city: { type: String, default: '' },
+  lang: { type: String, default: '' },
+  langDisplay: { type: String, default: '' },
+  isHost: { type: Boolean, default: false },
+  variantCount: { type: Number, default: 1 },
+})
+
+const hasCountry = computed(() => !!(props.country && props.country !== '—'))
+const hasCity = computed(() => !!(props.city && props.city !== '—'))
+const hasLocale = computed(() => hasCountry.value || hasCity.value)
+const langValue = computed(() => props.langDisplay || formatLang(props.lang))
+const showLang = computed(() => langValue.value && langValue.value !== '—')
+
+function flagSvg(code) {
+  return flagSvgs[code?.toUpperCase()] || ''
+}
+
+function countryName(code) {
+  if (!code) return ''
+  try {
+    return new Intl.DisplayNames(['en'], { type: 'region' }).of(code.toUpperCase())
+  } catch {
+    return ''
+  }
+}
+</script>
+
+<template>
+  <td class="visitor-cell" :class="{ 'host-cell': isHost }">
+    <div class="visitor-rows">
+      <div class="visitor-row">
+        <div class="locale-line">
+          <span v-if="flagSvg(country)" class="flag" v-html="flagSvg(country)" :title="countryName(country) || country"></span>
+          <template v-if="hasCity"><small class="city-name muted">{{ city }}</small></template>
+          <template v-else-if="!hasLocale">—</template>
+        </div>
+        <div class="ip-line">
+          <span class="clickable-ip small muted"
+                :title="ip"
+                @click="copyIp(ip, $event)">{{ ipDisplay }}</span>
+        </div>
+      </div>
+      <div class="visitor-row">
+        <div class="ua-line">
+          <small v-if="variantCount > 1" class="muted variant-hint">{{ variantCount }} client variations</small>
+          <small v-else class="muted" :title="uaRaw">{{ ua || '—' }}</small>
+        </div>
+        <div v-if="showLang && variantCount <= 1" class="locale-lang"><small class="muted">{{ langValue }}</small></div>
+      </div>
+    </div>
+  </td>
+</template>
+
+<style scoped>
+.visitor-cell {
+  width: 18em;
+  max-width: 18em;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  vertical-align: top;
+}
+
+.visitor-cell.host-cell {
+  text-align: right;
+}
+
+.visitor-rows {
+  display: flex;
+  flex-direction: column;
+  gap: 0.15rem;
+}
+
+.visitor-row {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  gap: 0.5rem;
+}
+
+.visitor-row > * {
+  min-width: 0;
+}
+
+.locale-line,
+.ip-line,
+.ua-line {
+  flex: 1 1 auto;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+}
+
+.locale-line {
+  text-align: left;
+  display: flex;
+  align-items: center;
+  gap: 0.3rem;
+}
+
+.ip-line {
+  text-align: right;
+}
+
+.ua-line {
+  text-align: left;
+}
+
+.locale-lang {
+  flex: 0 0 auto;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  text-align: right;
+}
+
+.city-name {
+  display: inline-block;
+  overflow: hidden;
+  text-overflow: ellipsis;
+  white-space: nowrap;
+  vertical-align: middle;
+}
+
+.flag {
+  display: inline-flex;
+  width: 18px;
+  height: 12px;
+  border-radius: 2px;
+  overflow: hidden;
+  border: 1px solid var(--line);
+  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.2) inset;
+  vertical-align: middle;
+}
+
+.flag :deep(svg) {
+  width: 100%;
+  height: 100%;
+  display: block;
+}
+</style>

frontend/src/VisitorCharts.vue

@@ -0,0 +1,216 @@
+<script setup>
+/**
+ * Visitor and page-view smoothed curves for a single shared time range.
+ */
+import { computed, onMounted, onUnmounted, ref } from 'vue'
+import { makeSeries } from './analytics/time.js'
+import { CHART_H, CHART_W, buildChart, fmtY } from './analytics/chart.js'
+
+const DAY_REFRESH_MS = 15000
+
+const props = defineProps({
+  data: { type: Object, default: null },
+  range: { type: String, required: true },
+})
+
+// Views across all pages combined into one raw bucket map.
+const allViews = computed(() => {
+  const all = {}
+  for (const buckets of Object.values(props.data?.views || {})) {
+    for (const [k, c] of Object.entries(buckets)) all[k] = (all[k] || 0) + c
+  }
+  return all
+})
+
+const visitSeries = computed(() => makeSeries(props.data?.site_visits, props.range))
+const viewSeries = computed(() => makeSeries(allViews.value, props.range))
+
+function freqLabel(unit) {
+  return unit === '5min' ? '5 min' : unit === 'hour' ? 'hourly' : 'daily'
+}
+
+const now = ref(Date.now())
+let refreshInterval = null
+onMounted(() => {
+  refreshInterval = setInterval(() => { now.value = Date.now() }, DAY_REFRESH_MS)
+})
+onUnmounted(() => {
+  if (refreshInterval) clearInterval(refreshInterval)
+})
+
+const visitChart = computed(() => buildChart(visitSeries.value, now.value))
+const viewChart = computed(() => buildChart(viewSeries.value, now.value))
+</script>
+
+<template>
+  <section v-for="c in [
+      { ylabel: 'visits', chart: visitChart, empty: 'no visits recorded yet' },
+      { ylabel: 'views', chart: viewChart, empty: 'no views recorded yet' },
+    ]" :key="c.ylabel">
+    <template v-if="c.chart">
+      <div class="chartwrap">
+        <div class="plot">
+          <div class="plotarea">
+            <span class="yaxis-label">{{ freqLabel(c.chart.unit) }} {{ c.ylabel }}</span>
+            <svg class="chart" :viewBox="`0 0 ${CHART_W} ${CHART_H}`"
+                 preserveAspectRatio="none" role="img" :aria-label="`${freqLabel(c.chart.unit)} ${c.ylabel}`">
+              <line v-for="g in c.chart.majors.slice(1)" :key="'j' + g.value"
+                    :x1="0" :x2="CHART_W" :y1="g.y" :y2="g.y" class="major" />
+              <template v-for="t in c.chart.xticks" :key="'t' + t.x">
+                <line v-if="t.line" :x1="t.x" :x2="t.x" :y1="0" :y2="CHART_H"
+                      class="minor vertical" />
+              </template>
+              <template v-if="c.chart.bars">
+                <rect v-for="(b, i) in c.chart.bars" :key="'b' + i"
+                      :x="b.x" :y="b.y" :width="b.width" :height="b.height" class="bar" />
+                <path :d="c.chart.skyline" class="line" />
+              </template>
+              <template v-else>
+                <template v-for="(s, i) in c.chart.series" :key="i">
+                  <path v-if="s.area" :d="s.area" class="area" />
+                  <path :d="s.line" class="line" :style="{ opacity: s.opacity }" />
+                </template>
+              </template>
+              <line :x1="0" :x2="CHART_W" :y1="CHART_H - 0.5" :y2="CHART_H - 0.5"
+                    class="axis" />
+            </svg>
+            <span v-for="g in c.chart.majors" :key="g.value" class="ylab"
+                  :style="{ bottom: g.bottom + '%' }">{{ fmtY(g.value) }}</span>
+          </div>
+          <div class="xlabels">
+            <span v-for="t in c.chart.xticks" :key="t.x" class="xlab"
+                  :style="{ left: t.left + '%' }">{{ t.label }}</span>
+          </div>
+        </div>
+      </div>
+      <div v-if="c.chart.series && c.chart.series.length > 1" class="legend">
+        <span v-for="(s, i) in c.chart.series" :key="i" :style="{ opacity: s.opacity }">
+          ● {{ s.label }}
+        </span>
+      </div>
+    </template>
+    <p v-else class="empty">{{ c.empty }}</p>
+  </section>
+</template>
+
+<style scoped>
+/* The svg is stretched (preserveAspectRatio none), so all text lives in
+   HTML overlays positioned by the same fractions the geometry uses. */
+.chartwrap {
+  padding-left: 2.8rem; /* y labels */
+}
+
+.plot {
+  display: flex;
+  flex-direction: column;
+  width: 100%;
+}
+
+.plotarea {
+  position: relative;
+  height: 8rem;
+}
+
+.xlabels {
+  position: relative;
+  height: 1.2rem;
+}
+
+.chart {
+  display: block;
+  width: 100%;
+  height: 100%;
+}
+
+.ylab {
+  position: absolute;
+  left: -2.8rem;
+  width: 2.6rem;
+  text-align: right;
+  transform: translateY(50%);
+  font-size: 0.75rem;
+  color: var(--muted);
+  font-variant-numeric: tabular-nums;
+}
+
+.xlab {
+  position: absolute;
+  top: 0.25rem;
+  transform: translateX(-50%);
+  font-size: 0.75rem;
+  color: var(--muted);
+  white-space: nowrap;
+}
+
+.xlabels .xlab:first-child { transform: none; }
+.xlabels .xlab:last-child { transform: translateX(-100%); }
+
+.chart .minor {
+  stroke: var(--line);
+  stroke-width: 1;
+  vector-effect: non-scaling-stroke;
+  opacity: 0.35;
+}
+
+.chart .minor.vertical {
+  opacity: 0.25;
+}
+
+.chart .major {
+  stroke: var(--line);
+  stroke-width: 1;
+  vector-effect: non-scaling-stroke;
+  stroke-dasharray: 3 4;
+  opacity: 0.8;
+}
+
+.chart .axis {
+  stroke: var(--line);
+  stroke-width: 1;
+  vector-effect: non-scaling-stroke;
+}
+
+.chart .area {
+  fill: var(--accent);
+  opacity: 0.15;
+}
+
+.chart .bar {
+  fill: var(--accent);
+  opacity: 0.15;
+}
+
+.chart .line {
+  fill: none;
+  stroke: var(--accent);
+  stroke-width: 2;
+  vector-effect: non-scaling-stroke;
+  stroke-linejoin: round;
+  stroke-linecap: round;
+}
+
+.legend {
+  display: flex;
+  gap: 1.2rem;
+  margin-top: 0.4rem;
+  font-size: 0.75rem;
+  color: var(--muted);
+}
+
+.legend span { color: var(--accent); }
+
+.yaxis-label {
+  position: absolute;
+  top: 50%;
+  left: -2.8rem;
+  font-size: 0.75rem;
+  color: var(--muted);
+  writing-mode: vertical-rl;
+  white-space: nowrap;
+  transform: translateY(-50%) rotate(180deg);
+}
+
+section { margin-top: 1.8rem; }
+
+.empty { color: var(--muted); }
+</style>

frontend/src/analytics-main.js

@@ -0,0 +1,30 @@
+// Analytics page entry: mounts AnalyticsView inside the normal page layout.
+// In production the backend inlines this module into the /_a page (and
+// pagerite.js re-creates the script element after fetch-navigations there);
+// in dev pagerite.js imports it from the Vite dev server on demand. Either
+// way it auto-mounts on #analytics-app when it evaluates, and unmounts when
+// pagerite.js announces a swap away from /_a.
+import { createApp } from 'vue'
+import AnalyticsView from './AnalyticsView.vue'
+
+let app = null
+
+export function mount(container) {
+  if (app) return
+  app = createApp(AnalyticsView)
+  app.mount(container)
+}
+
+export function unmount() {
+  app?.unmount()
+  app = null
+}
+
+// pagerite.js calls this before swapping away from /_a; each evaluation
+// (the inlined production module evaluates fresh on every visit) replaces
+// the handle.
+window.__pageriteAnalyticsUnmount = unmount
+
+// Auto-mount when the page holding #analytics-app is present.
+const container = document.getElementById('analytics-app')
+if (container) mount(container)

frontend/src/analytics/chart.js

@@ -0,0 +1,419 @@
+/**
+ * Chart geometry, smoothing, and SVG path generation for analytics charts.
+ *
+ * Fixed 720x180 viewBox, stretched to the panel width; values are per-unit
+ * rates (hour on the week view, day on month+).
+ */
+
+import { DAY, HOUR, MIN5, WEEK, mondayUTC } from './time.js'
+import { formatCount } from './format.js'
+
+export const CHART_W = 720
+export const CHART_H = 180
+export const PAD_TOP = 14 // room above the highest point
+
+/**
+ * Y always starts at 0; the max is a multiple of a 1-2-5 major step with at
+ * most 5 intervals, so labeled ticks are always round and evenly divided.
+ * A minimum range of 10 keeps tiny near-zero values (e.g. a single visit)
+ * from being enlarged to a fractional scale; minor lines subdivide each
+ * major step in five when that yields integers.
+ */
+export function yScale(maxValue) {
+  let step = 1
+  outer: for (let exp = -3; exp < 8; exp++) {
+    for (const base of [1, 2, 5]) {
+      step = base * 10 ** exp
+      if (Math.ceil(maxValue / step) <= 5) break outer
+    }
+  }
+  let max = Math.ceil(maxValue / step) * step
+  if (max < 10) {
+    max = 10
+    step = 2
+  }
+  const minor = step >= 5 && step % 5 === 0 ? step / 5 : null
+  return { max, step, minor }
+}
+
+/**
+ * Edge-aware adaptive Gaussian smoothing. A change-point detector first
+ * finds traffic-level shifts (two-unit totals compared on both sides of
+ * each bucket; strong ratio + significance marks a candidate, and each run
+ * of candidates keeps only its best-scoring bucket as an edge). Each
+ * edge-delimited segment is then smoothed independently: a broad two-unit
+ * pilot estimates the local traffic rate, which ramps the Gaussian sigma
+ * from ~0.4 units (isolated events stay narrow, peaking at ~1 event/unit)
+ * up to 1 unit (busy traffic gets full smoothing), and every bucket spreads
+ * its count with its local sigma, clipped to the segment and renormalized
+ * so total visitor count is preserved exactly. The unit is one hour on the
+ * week view and one day on the month+ views, so the smoothing time scale
+ * follows the range (month+ sigmas are 24x the hourly ones). The raw series
+ * is drawn faintly behind the curve for reference. Operates on raw counts.
+ */
+export function smooth(counts, binMinutes, unitMinutes, {
+  minSigmaMinutes = unitMinutes / Math.sqrt(2 * Math.PI),
+  maxSigmaMinutes = unitMinutes,
+  pilotSigmaMinutes = 2 * unitMinutes,
+  detectorWindowMinutes = 2 * unitMinutes,
+  // Count thresholds are defined per hour and scale with the unit, so
+  // "low traffic" means the same thing on hourly and daily views
+  // (5-20 events/hour = 120-480/day on the month+ ranges).
+  highTrafficEvents = 10 * unitMinutes / 60,
+  minRatio = 2.5,
+  minSignificance = 4,
+  sigmaRampStart = 5 * unitMinutes / 60,
+  sigmaRampEnd = 20 * unitMinutes / 60,
+} = {}) {
+  const n = counts.length
+  if (!n) return counts
+  const detectorWindowBins = Math.max(1, Math.round(detectorWindowMinutes / binMinutes))
+
+  const cumsum = new Float64Array(n + 1)
+  for (let i = 0; i < n; i++) cumsum[i + 1] = cumsum[i] + counts[i]
+
+  // Detect abrupt regime changes from aggregated traffic on both sides.
+  // Individual bins are deliberately ignored because even high traffic
+  // produces many 0-1 count bins at five-minute resolution.
+  const score = new Float64Array(n)
+  const candidate = new Uint8Array(n)
+  for (let i = detectorWindowBins; i < n - detectorWindowBins; i++) {
+    const left = cumsum[i] - cumsum[i - detectorWindowBins]
+    const right = cumsum[i + detectorWindowBins] - cumsum[i]
+    const high = Math.max(left, right)
+    const low = Math.min(left, right)
+    if (high < highTrafficEvents) continue
+    const ratio = (high + 1) / (low + 1)
+    const significance = (high - low) / Math.sqrt(high + low + 1)
+    if (ratio >= minRatio && significance >= minSignificance) {
+      candidate[i] = 1
+      score[i] = significance * Math.log(ratio)
+    }
+  }
+
+  // Collapse each continuous detector region to its strongest boundary.
+  const edges = []
+  for (let i = 0; i < n;) {
+    if (!candidate[i]) { i++; continue }
+    let j = i + 1
+    while (j < n && candidate[j]) j++
+    let best = i
+    for (let k = i + 1; k < j; k++) {
+      if (score[k] > score[best]) best = k
+    }
+    edges.push(best)
+    i = j
+  }
+
+  const reflectIndex = (i, length) => {
+    while (i < 0 || i >= length) {
+      i = i < 0 ? -i - 1 : 2 * length - i - 1
+    }
+    return i
+  }
+
+  const gaussianFilterReflect = (values, sigmaBins) => {
+    const length = values.length
+    const radius = Math.ceil(4 * sigmaBins)
+    const kernel = new Float64Array(radius * 2 + 1)
+    let sum = 0
+    for (let k = -radius; k <= radius; k++) {
+      const w = Math.exp(-0.5 * (k / sigmaBins) ** 2)
+      kernel[k + radius] = w
+      sum += w
+    }
+    for (let i = 0; i < kernel.length; i++) kernel[i] /= sum
+    const out = new Float64Array(length)
+    for (let i = 0; i < length; i++) {
+      let value = 0
+      for (let k = -radius; k <= radius; k++) {
+        value += values[reflectIndex(i + k, length)] * kernel[k + radius]
+      }
+      out[i] = value
+    }
+    return out
+  }
+
+  // Process each discontinuity-delimited regime independently so neither
+  // the pilot nor the final Gaussian can see through a detected boundary.
+  const bounds = [0, ...edges, n]
+  const smoothed = new Float64Array(n)
+  for (let b = 0; b < bounds.length - 1; b++) {
+    const lo = bounds[b]
+    const length = bounds[b + 1] - lo
+    const segment = counts.slice(lo, lo + length)
+
+    // Broad pilot estimates only the generic local traffic level used for
+    // choosing sigma; it is not the final displayed curve.
+    const pilot = gaussianFilterReflect(segment, pilotSigmaMinutes / binMinutes)
+
+    // Keep isolated/sparse traffic at the minimum bandwidth through
+    // sigmaRampStart events, then ramp toward maxSigmaMinutes (thresholds
+    // are per-hour rates scaled to the unit: low traffic is low traffic
+    // on every range).
+    const sigmaMinutes = new Float64Array(length)
+    for (let i = 0; i < length; i++) {
+      const ratePerUnit = pilot[i] * unitMinutes / binMinutes
+      let mix = (ratePerUnit - sigmaRampStart) / (sigmaRampEnd - sigmaRampStart)
+      mix = Math.sqrt(Math.max(0, Math.min(1, mix)))
+      sigmaMinutes[i] = minSigmaMinutes + mix * (maxSigmaMinutes - minSigmaMinutes)
+    }
+
+    // Each input bin spreads its own count using its local sigma. The
+    // per-bin kernel is renormalized after clipping to the segment,
+    // preserving total visitor count apart from floating-point error.
+    for (let j = 0; j < length; j++) {
+      const count = segment[j]
+      if (!count) continue
+      const sigmaBins = sigmaMinutes[j] / binMinutes
+      const radius = Math.ceil(4 * sigmaBins)
+      const start = Math.max(0, j - radius)
+      const end = Math.min(length, j + radius + 1)
+      let weightSum = 0
+      for (let i = start; i < end; i++) {
+        const d = i - j
+        weightSum += Math.exp(-0.5 * (d / sigmaBins) ** 2)
+      }
+      for (let i = start; i < end; i++) {
+        const d = i - j
+        smoothed[lo + i] += count * Math.exp(-0.5 * (d / sigmaBins) ** 2) / weightSum
+      }
+    }
+  }
+  return [...smoothed]
+}
+
+/**
+ * Catmull-Rom spline through the (smoothed) points, control points clamped
+ * to the plot area so the curve can never dip below zero or above the max.
+ */
+export function spline(pts) {
+  if (pts.length < 3) {
+    return `M${pts.map((p) => `${p.x},${p.y}`).join('L')}`
+  }
+  const clampY = (y) => Math.min(CHART_H, Math.max(PAD_TOP, y))
+  let d = `M${pts[0].x},${pts[0].y}`
+  for (let i = 0; i < pts.length - 1; i++) {
+    const p0 = pts[i - 1] || pts[i]
+    const p1 = pts[i]
+    const p2 = pts[i + 1]
+    const p3 = pts[i + 2] || p2
+    const c1y = clampY(p1.y + (p2.y - p0.y) / 6)
+    const c2y = clampY(p2.y - (p3.y - p1.y) / 6)
+    d += `C${p1.x + (p2.x - p0.x) / 6},${c1y} `
+       + `${p2.x - (p3.x - p1.x) / 6},${c2y} ${p2.x},${p2.y}`
+  }
+  return d
+}
+
+/** Build a full chart model from a series descriptor produced by time.js. */
+export function buildChart(input, now = Date.now()) {
+  if (!input || !input.series.length) return null
+  if (input.unit === '5min') return buildDayChart(input, now)
+  const { series, t0, t1, rate, binMinutes, unitMinutes, unit } = input
+  // Values are per-unit rates (hour on the week view, day on month+); the
+  // y max is derived from the *smoothed* curves so random single-bucket
+  // spikes don't blow up the scale. Smoothing works on raw counts (its edge
+  // detector thresholds are count-based), the result is scaled back to rates.
+  const smoothed = series.map((s) =>
+    smooth(s.points.map((p) => p.count), binMinutes, unitMinutes).map((v) => v * rate))
+  // Scale from the current/primary series only; older overlay weeks are drawn
+  // with the same scale and allowed to overflow if they are busier.
+  const highest = Math.max(0, ...smoothed[0])
+  const { max, step, minor } = yScale(highest)
+  const x = (t) => ((t - t0) / (t1 - t0)) * CHART_W
+  const y = (v) => PAD_TOP + (1 - Math.max(0, v) / max) * (CHART_H - PAD_TOP)
+  const drawn = series.map((s, si) => {
+    const pts = s.points.map((p, i) => ({ x: x(p.t), y: y(smoothed[si][i]) }))
+    const line = spline(pts)
+    const first = pts[0]
+    const last = pts.at(-1)
+    return {
+      ...s,
+      line,
+      area: s.area ? `${line}L${last.x},${CHART_H}L${first.x},${CHART_H}Z` : null,
+    }
+  })
+  // Major (labeled) and minor (hairline) y grid ticks.
+  const majors = []
+  const minors = []
+  const nMajor = Math.round(max / step)
+  for (let k = 0; k <= nMajor; k++) {
+    const v = k * step
+    majors.push({ value: v, y: y(v), bottom: (1 - PAD_TOP / CHART_H) * (v / max) * 100 })
+  }
+  if (minor) {
+    for (let v = minor; v < max; v += minor) {
+      if (v % step !== 0) minors.push({ y: y(v) })
+    }
+  }
+  // X ticks. Week view: weekday labels centered at midday UTC, no vertical
+  // lines (day boundaries would be misleading in the viewer's timezone).
+  // Month view: likewise lineless, day numbers at noon UTC with the month
+  // name substituted for the 1st (marking the month change). Longer
+  // ranges: boundary lines at Mondays / months / years.
+  const isWeek = t1 - t0 === WEEK
+  const isMonth = !isWeek && t1 - t0 <= 31 * DAY
+  const xticks = isWeek
+    ? Array.from({ length: 7 }, (_, d) => {
+        const t = t0 + d * DAY + 12 * HOUR
+        return {
+          x: x(t), left: ((t - t0) / (t1 - t0)) * 100,
+          label: new Date(t).toLocaleDateString(undefined, {
+            weekday: 'short', timeZone: 'UTC',
+          }),
+          line: false,
+        }
+      })
+    : isMonth
+      ? Array.from(
+          { length: Math.floor((t1 - Math.ceil(t0 / DAY) * DAY) / DAY) },
+          (_, d) => {
+            const day = Math.ceil(t0 / DAY) * DAY + d * DAY
+            const date = new Date(day)
+            const t = day + 12 * HOUR
+            return {
+              x: x(t), left: ((t - t0) / (t1 - t0)) * 100,
+              label: date.getUTCDate() === 1
+                ? date.toLocaleDateString(undefined, { month: 'short', timeZone: 'UTC' })
+                : String(date.getUTCDate()),
+              line: false,
+            }
+          },
+        )
+      : xticksFor(t0, t1).map((t) => ({
+          x: x(t), left: ((t - t0) / (t1 - t0)) * 100,
+          label: fmtTick(t, t1 - t0), line: true,
+        }))
+  return { max, majors, minors, series: drawn, xticks, unit }
+}
+
+/**
+ * Day view: 5-minute bars for the last 24 hours. Bars are drawn at raw
+ * counts; the skyline uses a projected full-bucket value for the still-open
+ * final bucket. The y scale is derived from the projected skyline maximum.
+ */
+export function buildDayChart(input, now = Date.now()) {
+  const { series, t0, t1 } = input
+  const points = series[0]?.points || []
+  const n = points.length
+  if (!n) return null
+  const bucketMs = (t1 - t0) / n
+  const bucketWidth = CHART_W / n
+  const gap = 0.2
+  const barWidth = Math.max(0.2, bucketWidth - gap)
+
+  const x = (i) => i * bucketWidth + gap / 2
+  const prevRaw = n > 1 ? points[n - 2].count : 0
+  const projected = points.map((p, i) => {
+    if (i !== n - 1) return p.count
+    const bucketStart = t0 + i * bucketMs
+    const elapsed = Math.max(1, Math.min(bucketMs, now - bucketStart))
+    // Blend the observed partial bucket with the previous full bucket:
+    // the longer the current bucket has run, the less we borrow from it.
+    const share = elapsed / bucketMs
+    return p.count + prevRaw * (1 - share)
+  })
+  const highest = Math.max(0, ...projected)
+  const { max, step, minor } = yScale(highest)
+  const y = (v) => PAD_TOP + (1 - Math.max(0, v) / max) * (CHART_H - PAD_TOP)
+
+  const bars = points.map((p, i) => {
+    const bx = x(i)
+    const by = y(p.count)
+    return {
+      x: bx,
+      y: by,
+      width: barWidth,
+      height: CHART_H - by,
+      raw: p.count,
+      projected: projected[i],
+    }
+  })
+
+  let skyline = ''
+  for (let i = 0; i < bars.length; i++) {
+    const b = bars[i]
+    const top = y(b.projected)
+    if (i === 0) {
+      skyline += `M${b.x},${top} H${b.x + b.width}`
+    } else {
+      skyline += ` V${top} H${b.x + b.width}`
+    }
+  }
+
+  const majors = []
+  const minors = []
+  const nMajor = Math.round(max / step)
+  for (let k = 0; k <= nMajor; k++) {
+    const v = k * step
+    majors.push({ value: v, y: y(v), bottom: (1 - PAD_TOP / CHART_H) * (v / max) * 100 })
+  }
+  if (minor) {
+    for (let v = minor; v < max; v += minor) {
+      if (v % step !== 0) minors.push({ y: y(v) })
+    }
+  }
+
+  const xticks = []
+  const tickStep = 3 * HOUR
+  const firstTick = Math.ceil(t0 / tickStep) * tickStep
+  for (let t = firstTick; t < t1; t += tickStep) {
+    if (t < t0) continue
+    const d = new Date(t)
+    xticks.push({
+      x: ((t - t0) / (t1 - t0)) * CHART_W,
+      left: ((t - t0) / (t1 - t0)) * 100,
+      label: `${String(d.getUTCHours()).padStart(2, '0')}:00`,
+      line: false,
+    })
+  }
+
+  return { bars, skyline: skyline.trim(), max, majors, minors, xticks, unit: '5min', series: [] }
+}
+
+/** X ticks for year/all: Monday boundaries up to a quarter, UTC month
+ *  boundaries up to a few years, then years. */
+export function xticksFor(t0, t1) {
+  const span = t1 - t0
+  const ticks = []
+  if (span <= 100 * DAY) {
+    for (let t = mondayUTC(t0); t <= t1; t += WEEK) {
+      if (t >= t0) ticks.push(t)
+    }
+    return ticks
+  }
+  if (span <= 4 * 365 * DAY) {
+    const d = new Date(t0)
+    let t = Date.UTC(d.getUTCFullYear(), d.getUTCMonth() + 1, 1)
+    for (; t <= t1; ) {
+      ticks.push(t)
+      const m = new Date(t)
+      t = Date.UTC(m.getUTCFullYear(), m.getUTCMonth() + 1, 1)
+    }
+    return ticks
+  }
+  const d = new Date(t0)
+  for (let yr = d.getUTCFullYear() + 1; Date.UTC(yr, 0, 1) <= t1; yr++) {
+    ticks.push(Date.UTC(yr, 0, 1))
+  }
+  return ticks
+}
+
+export function fmtTick(t, span) {
+  const d = new Date(t)
+  if (span <= 100 * DAY) {
+    return d.toLocaleDateString(undefined, { month: 'short', day: 'numeric', timeZone: 'UTC' })
+  }
+  if (span <= 4 * 365 * DAY) {
+    return d.getUTCMonth() === 0
+      ? d.toLocaleDateString(undefined, { year: 'numeric', timeZone: 'UTC' })
+      : d.toLocaleDateString(undefined, { month: 'short', timeZone: 'UTC' })
+  }
+  return d.toLocaleDateString(undefined, { year: 'numeric', timeZone: 'UTC' })
+}
+
+/** Y labels use the same compact formatter as text labels. */
+export function fmtY(v) {
+  return formatCount(v)
+}

frontend/src/analytics/format.js

@@ -0,0 +1,534 @@
+/**
+ * Formatters and aggregators for summary sections: totals and the recent
+ * visit trail.
+ */
+
+/**
+ * IPv4 unchanged, IPv6 returns the /64 network prefix in compact form.
+ * Falls back to the original value when parsing fails.
+ */
+export const hostIP = (ip) => {
+  try {
+    if (!ip || !ip.includes(':')) return ip
+    const strip = (s) => s.replace(/^\[|\]$/g, '')
+    const norm = strip(new URL(`http://[${ip}]/`).hostname)
+    const [l, r] = norm.split('::').map((s) => (s ? s.split(':') : []))
+    const full = r
+      ? [...l, ...Array(8 - l.length - r.length).fill('0'), ...r]
+      : l
+    return strip(
+      new URL(`http://[${full.slice(0, 4).join(':')}::]/`).hostname,
+    ).replace(/::$/, '')
+  } catch (e) {
+    console.error('hostIP processing failed for:', ip, e)
+    return ip
+  }
+}
+
+function showCopiedFeedback(el) {
+  if (!el || typeof document === 'undefined') return
+  const popup = document.createElement('span')
+  popup.textContent = 'Copied!'
+  popup.className = 'copy-popup'
+  popup.style.cssText =
+    'position:absolute;bottom:calc(100% + 0.25rem);left:50%;' +
+    'transform:translateX(-50%);padding:0.15rem 0.4rem;' +
+    'background:var(--text, CanvasText);color:var(--bg, Canvas);' +
+    'border-radius:0.25rem;font-size:0.75rem;white-space:nowrap;' +
+    'pointer-events:none;z-index:10;'
+  el.classList.add('has-copy-popup')
+  el.appendChild(popup)
+  setTimeout(() => {
+    popup.remove()
+    el.classList.remove('has-copy-popup')
+  }, 1200)
+}
+
+/** Copy the full IP to the clipboard and show a brief "Copied!" popup. */
+export async function copyIp(ip, event) {
+  if (!ip) return
+  const el = event?.currentTarget
+  try {
+    await navigator.clipboard.writeText(ip)
+    showCopiedFeedback(el)
+  } catch {
+    /* ignore */
+  }
+}
+
+/** Copy arbitrary text to the clipboard and show a brief "Copied!" popup. */
+export async function copyList(text, event) {
+  if (!text) return
+  const el = event?.currentTarget
+  try {
+    await navigator.clipboard.writeText(text)
+    showCopiedFeedback(el)
+  } catch {
+    /* ignore */
+  }
+}
+
+/** Total page views across every page and every bucket. */
+export function calcTotalViews(views) {
+  let n = 0
+  for (const buckets of Object.values(views || {})) {
+    for (const c of Object.values(buckets)) n += c
+  }
+  return n
+}
+
+// Very short reads are navigation/skims, not real reading time.
+export const MIN_READ_SECONDS = 10
+
+/** Average minutes per visit and average of per-article median read minutes. */
+export function calcReadStats(visits) {
+  const perArticle = {}
+  let totalVisitSeconds = 0
+  let visitCount = 0
+  for (const v of visits || []) {
+    const secs = Object.values(v.read || {}).filter((s) => s >= MIN_READ_SECONDS)
+    if (!secs.length) continue
+    visitCount++
+    totalVisitSeconds += secs.reduce((a, b) => a + b, 0)
+    for (const [path, s] of Object.entries(v.read || {})) {
+      if (s >= MIN_READ_SECONDS) {
+        ; (perArticle[path] || (perArticle[path] = [])).push(s)
+      }
+    }
+  }
+  const avgMinPerVisit = visitCount
+    ? Math.max(1, Math.round(totalVisitSeconds / visitCount / 60))
+    : 0
+
+  let articleMedianSum = 0
+  const articleCount = Object.keys(perArticle).length
+  for (const arr of Object.values(perArticle)) {
+    arr.sort((a, b) => a - b)
+    const mid = Math.floor(arr.length / 2)
+    const median = arr.length % 2 ? arr[mid] : (arr[mid - 1] + arr[mid]) / 2
+    articleMedianSum += Math.max(MIN_READ_SECONDS, median)
+  }
+  const avgArticleMedianMin = articleCount
+    ? Math.max(1, Math.round(articleMedianSum / articleCount / 60))
+    : 0
+
+  return { avgMinPerVisit, avgArticleMedianMin }
+}
+
+/** Build a path -> page title lookup from the site tree. */
+function buildTitleMap(pageTree) {
+  const titles = new Map()
+  const walk = (items) => {
+    for (const item of items || []) {
+      titles.set(`/${item.path}`, item.title)
+      walk(item.children)
+    }
+  }
+  walk(pageTree)
+  return titles
+}
+
+/** Last path segment for display; front page becomes a house icon. */
+function slugOf(path) {
+  return path === '/' ? '🏠︎' : path.split('/').pop()
+}
+
+/** Host name of an external https origin, with scheme and www. stripped. */
+function externalSlug(origin) {
+  try {
+    return new URL(origin).host.replace(/^www\./, '')
+  } catch {
+    return origin.replace(/^https?:\/\//, '').replace(/^www\./, '')
+  }
+}
+
+/** Format one trail step: an internal page or an external https origin. */
+function stepOf(path, titles) {
+  if (path?.startsWith('/')) {
+    return { path, slug: slugOf(path), title: titles.get(path) || '', external: false, home: path === '/' }
+  }
+  if (path?.startsWith('https://')) {
+    return {
+      path,
+      slug: externalSlug(path),
+      title: 'External site',
+      external: true,
+    }
+  }
+  return null
+}
+
+/**
+ * Human-readable relative timestamp.  Adapted from cista-storage: uses
+ * ``Intl.RelativeTimeFormat`` for short intervals and a compact date for
+ * anything older than a week.
+ */
+export function formatWhen(ts, now = Date.now()) {
+  const date = new Date(ts)
+  const diff = date.getTime() - now
+  const adiff = Math.abs(diff)
+  const formatter = new Intl.RelativeTimeFormat('en', { numeric: 'auto' })
+  if (adiff <= 5000) return 'now'
+  if (adiff <= 60000) {
+    return formatter
+      .format(Math.round(diff / 1000), 'second')
+      .replace(' ago', '')
+      .replaceAll(' ', '\u202F')
+  }
+  if (adiff <= 3600000) {
+    return formatter
+      .format(Math.round(diff / 60000), 'minute')
+      .replace('utes', '')
+      .replace('ute', '')
+      .replaceAll(' ', '\u202F')
+  }
+  if (adiff <= 86400000) {
+    return formatter
+      .format(Math.round(diff / 3600000), 'hour')
+      .replace('hours', 'h')
+      .replace('hour', 'h')
+      .replaceAll(' ', '\u202F')
+  }
+  if (adiff <= 604800000) {
+    return formatter
+      .format(Math.round(diff / 86400000), 'day')
+      .replaceAll(' ', '\u202F')
+  }
+  let d = date
+    .toLocaleDateString('en-ie', {
+      weekday: 'short',
+      year: 'numeric',
+      month: 'short',
+      day: 'numeric',
+    })
+    .replace('Sept', 'Sep')
+  if (d.length === 14) d = d.replace(' ', ' \u2007')
+  d = d.replaceAll(' ', '\u202F').replace('\u202F', '\u00A0')
+  d = d.slice(0, -4) + d.slice(-2)
+  return d
+}
+
+/** Full UTC timestamp for tooltips, e.g. "2026-08-21 00:20:48 UTC". */
+export function formatWhenTooltip(ts) {
+  return new Date(ts).toISOString().replace('T', ' ').replace('Z', ' UTC')
+}
+
+/** Full local timestamp for tooltips, e.g. "21 Aug 2026, 17:38:48". */
+export function formatWhenLocal(ts) {
+  return new Date(ts).toLocaleString('en-ie', {
+    year: 'numeric',
+    month: 'short',
+    day: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit',
+    second: '2-digit',
+  })
+}
+
+/** Preserve locale case with the region/country subtag upper-cased. */
+export function formatLang(value) {
+  if (!value || value === '—') return value
+  const parts = value.split('-')
+  if (parts.length > 1) {
+    parts[parts.length - 1] = parts[parts.length - 1].toUpperCase()
+  }
+  return parts.join('-')
+}
+
+/** ISO 8601 UTC timestamp without subseconds, e.g. "2026-08-21T00:20:48Z". */
+export function formatWhenIso(ts) {
+  return `${new Date(ts).toISOString().split('.')[0]}Z`
+}
+
+/**
+ * Compact visitor counts: plain below 1k, then 1.2k / 10k / 1.2M.
+ * Truncated, not rounded.
+ */
+export function formatCount(n) {
+  if (n < 1000) return String(n)
+  if (n < 10000) return `${Math.trunc(n / 1000)}.${Math.trunc((n % 1000) / 100)}k`
+  if (n < 1_000_000) return `${Math.trunc(n / 1000)}k`
+  return `${Math.trunc(n / 1_000_000)}.${Math.trunc((n % 1_000_000) / 100_000)}M`
+}
+
+/**
+ * Format recent visits for display, newest first. Each step is a linked slug
+ * pointing to its article; external referers/origins are shown as their
+ * domain name with the full origin as the link href. The link title shows the
+ * article heading when known, or "External site" for origins.
+ */
+export function formatRecentVisits(visits, pageTree, limit = 50) {
+  const titles = buildTitleMap(pageTree)
+  return [...visits]
+    .reverse()
+    .map((v) => ({
+      when: new Date(v.start).toLocaleString(),
+      steps: [v.referer, v.entry, ...(v.trail || [])]
+        .map((p) => stepOf(p, titles))
+        .filter(Boolean),
+    }))
+    .filter((v) => v.steps.length)
+    .slice(0, limit)
+}
+
+/**
+ * Count distinct values of a visit field, sorted most-common first.
+ * Returns an array of [value, count] pairs.
+ */
+export function countByField(visits, field) {
+  const counts = {}
+  for (const v of visits || []) {
+    const value = v[field]
+    if (!value) continue
+    counts[value] = (counts[value] || 0) + 1
+  }
+  return Object.entries(counts).sort((a, b) => b[1] - a[1])
+}
+
+/**
+ * Count UTM parameter occurrences across visits.  Each distinct
+ * ``parameter: value`` pair is counted separately.  Returns [pair, count].
+ */
+export function countUtmTags(visits) {
+  const counts = {}
+  for (const v of visits || []) {
+    for (const [key, value] of Object.entries(v.utm || {})) {
+      const label = `${key}: ${value}`
+      counts[label] = (counts[label] || 0) + 1
+    }
+  }
+  return Object.entries(counts).sort((a, b) => b[1] - a[1])
+}
+
+/** Format a list of [value, count] pairs for inline display. */
+export function formatCounts(entries) {
+  return entries.map(([value, count]) => `${value} (${count})`).join(', ')
+}
+
+/**
+ * Count distinct User-Agent strings among crawler hits, most common first.
+ * Returns an array of [ua, count] pairs.  ``clients`` maps client hashes to
+ * client records.
+ */
+export function countCrawlerUas(crawlers, clients) {
+  const counts = {}
+  for (const c of crawlers || []) {
+    const client = (clients || {})[c.client] || {}
+    const value = client.ua_pretty || client.ua || '(no UA)'
+    counts[value] = (counts[value] || 0) + 1
+  }
+  return Object.entries(counts).sort((a, b) => b[1] - a[1])
+}
+
+/**
+ * Reduce a reverse-DNS hostname to its right-most components that fit
+ * within ``limit`` characters.  This keeps the meaningful main domain
+ * while avoiding absurdly long subdomains like ``xxx.yyy.zzz...provider.net``.
+ */
+export function mainDomain(host, limit = 24) {
+  if (!host) return host
+  const labels = host.split('.').filter(Boolean)
+  if (!labels.length) return host
+  const parts = [labels.pop()]
+  while (labels.length) {
+    const next = labels[labels.length - 1]
+    const candidate = `${next}.${parts.join('.')}`
+    if (candidate.length > limit) break
+    parts.unshift(labels.pop())
+  }
+  return parts.join('.')
+}
+
+/**
+ * Group raw crawler hits by client hash and format each group as a row showing
+ * every internal page that crawler visited.  Rows are sorted by total hits,
+ * most active crawler first, rather than by most recent hit.
+ * ``clients`` maps client hashes to client records.
+ */
+export function formatCrawlerRows(crawlers, clients, pageTree, now = Date.now()) {
+  const titles = buildTitleMap(pageTree)
+  const groups = new Map()
+  for (const c of crawlers || []) {
+    const client = (clients || {})[c.client] || {}
+    const g = groups.get(c.client) || {
+      clientHash: c.client,
+      client,
+      lastStart: 0,
+      pages: new Map(),
+    }
+    const start = new Date(c.start).getTime()
+    if (start > g.lastStart) g.lastStart = start
+    if (c.entry?.startsWith('/')) {
+      g.pages.set(c.entry, (g.pages.get(c.entry) || 0) + 1)
+    }
+    groups.set(c.client, g)
+  }
+  const totalHits = (g) => {
+    let n = 0
+    for (const c of g.pages.values()) n += c
+    return n
+  }
+  return [...groups.values()]
+    .sort((a, b) => totalHits(b) - totalHits(a) || b.lastStart - a.lastStart)
+    .slice(0, 10)
+    .map((g) => {
+      const client = g.client || {}
+      const host = client.host || ''
+      const isHost = !!host
+      return {
+        lastSeen: formatWhen(g.lastStart, now),
+        lastSeenIso: formatWhenIso(g.lastStart),
+        lastSeenLocal: formatWhenLocal(g.lastStart),
+        pages: [...g.pages.entries()]
+          .sort((a, b) => b[1] - a[1])
+          .map(([path, count]) => ({ ...stepOf(path, titles), count })),
+        ip: client.ip || '',
+        ipDisplay: isHost ? mainDomain(host) : hostIP(client.ip) || client.ip || '—',
+        isHost,
+        ua: client.ua_pretty || client.ua || '—',
+        uaRaw: client.ua || '',
+        lang: client.lang || '—',
+        langDisplay: formatLang(client.lang),
+        country: client.country || '—',
+        city: client.city || '—',
+        total: totalHits(g),
+      }
+    })
+}
+
+/**
+ * Group abuse hits by IP and format each group as a row with the full paths
+ * probed.  Identical paths are collapsed into one entry with their hit count.
+ * Flagged paths (the ones that triggered abuse classification) are lifted to
+ * the top, followed by other 404s, then document GETs from the abuser.  Within
+ * each category paths are sorted by count descending, then earliest first.
+ * Rows are sorted by most recent hit first.  Visitor metadata comes from the
+ * latest client hash seen for the IP; ``clientCount`` tells the visitor cell
+ * how many distinct client variations the IP produced.  Paths are shown
+ * verbatim (query string included), not resolved against the page tree.
+ * ``clients`` maps client hashes to client records.
+ */
+export function formatAbuseRows(abuse, clients, now = Date.now()) {
+  const groups = new Map()
+  for (const a of abuse || []) {
+    const client = (clients || {})[a.client] || {}
+    const ip = client.ip || ''
+    const g = groups.get(ip) || {
+      ip,
+      pathCounts: new Map(),
+      clientHashes: new Set(),
+      lastStart: 0,
+      lastClient: a.client,
+    }
+    const start = new Date(a.start).getTime()
+    if (start > g.lastStart) {
+      g.lastStart = start
+      g.lastClient = a.client
+    }
+    const path = a.path || ''
+    const existing = g.pathCounts.get(path) || {
+      path,
+      count: 0,
+      firstStart: start,
+      flag: a.flag || false,
+      is_404: a.is_404 || false,
+    }
+    existing.count += 1
+    if (start < existing.firstStart) existing.firstStart = start
+    if (a.flag) existing.flag = true
+    if (!a.is_404) existing.is_404 = false
+    g.pathCounts.set(path, existing)
+    g.clientHashes.add(a.client)
+    groups.set(ip, g)
+  }
+  const totalHits = (g) => {
+    let n = 0
+    for (const p of g.pathCounts.values()) n += p.count
+    return n
+  }
+  return [...groups.values()]
+    .sort((a, b) => b.lastStart - a.lastStart)
+    .slice(0, 10)
+    .map((g) => {
+      const pathCategory = (p) => (p.flag ? 0 : p.is_404 ? 1 : 2)
+      const paths = [...g.pathCounts.values()].sort(
+        (a, b) =>
+          pathCategory(a) - pathCategory(b) ||
+          b.count - a.count ||
+          a.firstStart - b.firstStart,
+      )
+      const client = (clients || {})[g.lastClient] || {}
+      const host = client.host || ''
+      const isHost = !!host
+      return {
+        lastSeen: formatWhen(g.lastStart, now),
+        lastSeenIso: formatWhenIso(g.lastStart),
+        lastSeenLocal: formatWhenLocal(g.lastStart),
+        paths: paths.map((p) => ({
+          path: p.path,
+          count: p.count,
+          flag: p.flag,
+          is_404: p.is_404,
+        })),
+        allPaths: paths
+          .map((p) => (p.count > 1 ? `${p.count}× ${p.path}` : p.path))
+          .join('\n'),
+        clientCount: g.clientHashes.size,
+        ip: client.ip || g.ip,
+        ipDisplay: isHost ? mainDomain(host) : hostIP(client.ip || g.ip) || client.ip || g.ip || '—',
+        isHost,
+        ua: client.ua_pretty || client.ua || '—',
+        uaRaw: client.ua || '',
+        lang: client.lang || '—',
+        langDisplay: formatLang(client.lang),
+        country: client.country || '—',
+        city: client.city || '—',
+        total: totalHits(g),
+      }
+    })
+}
+
+/**
+ * Format raw visit records as rows for a technical table.  Returns objects
+ * with display strings; missing values become "—".  ``trail`` starts with the
+ * external referer (when present), then the entry page and any further internal
+ * pages or external exit origins. Only the 20 most recent visits are shown.
+ * ``clients`` maps client hashes to client records.
+ */
+export function formatVisitRows(visits, clients, pageTree, now = Date.now()) {
+  const titles = buildTitleMap(pageTree)
+  return [...(visits || [])].reverse().slice(0, 20).map((v) => {
+    const client = (clients || {})[v.client] || {}
+    const trail = [v.entry, ...(v.trail || [])]
+      .map((p) => stepOf(p, titles))
+      .filter(Boolean)
+    const utmKeys = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content']
+    const utmValues = utmKeys.map((k) => (v.utm || {})[k]).filter(Boolean)
+    const utm = utmValues.length ? utmValues.join(' · ') : ''
+    const utmTitle = Object.entries(v.utm || {})
+      .map(([k, value]) => `${k}=${value}`)
+      .join(', ')
+    const dash = (s) => (s || '—')
+    const host = client.host || ''
+    const isHost = !!host
+    return {
+      lastSeen: formatWhen(v.start, now),
+      lastSeenIso: formatWhenIso(v.start),
+      lastSeenLocal: formatWhenLocal(v.start),
+      langDisplay: formatLang(client.lang),
+      trail,
+      refererStep: stepOf(v.referer, titles),
+      referer: dash(v.referer),
+      ip: client.ip || '',
+      ipDisplay: isHost ? mainDomain(host) : hostIP(client.ip) || client.ip || '—',
+      isHost,
+      lang: dash(client.lang),
+      country: dash(client.country),
+      city: dash(client.city),
+      ua: client.ua_pretty || client.ua || '—',
+      uaRaw: client.ua || '',
+      utm: utm || '—',
+      utmTitle,
+    }
+  })
+}

frontend/src/analytics/time.js

@@ -0,0 +1,170 @@
+/**
+ * Time ranges, week alignment and re-bucketing for analytics charts.
+ *
+ * Raw data comes as sparse 5-minute buckets; the range picks the x window
+ * and a coarser bucket size to keep point counts sane. The week range is
+ * aligned to Monday 00:00 UTC and overlays previous weeks' curves (fading
+ * with age), so weekly patterns compare directly.
+ */
+
+export const MIN5 = 5 * 60e3
+export const HOUR = 3600e3
+export const DAY = 86400e3
+export const WEEK = 7 * DAY
+
+export const RANGES = {
+  day: { label: 'day', span: DAY, bucket: MIN5 },
+  week: { label: 'week' },
+  month: { label: 'month', span: 30 * DAY, bucket: 6 * HOUR },
+  year: { label: 'year', span: 365 * DAY, bucket: DAY },
+  all: { label: 'all', span: null, bucket: DAY, minSpan: 30 * DAY },
+}
+
+/** Monday 00:00 UTC of the week containing t (epoch day 0 was a Thursday). */
+export function mondayUTC(t) {
+  const d = Math.floor(t / DAY)
+  return (d - ((d + 3) % 7)) * DAY
+}
+
+/** Parse sparse timestamp buckets into a { epochMs: count } map. */
+export function rawTimes(buckets) {
+  const raw = {}
+  // Key by parsed timestamp: Python writes "+00:00", JS ISO uses "Z".
+  for (const [k, c] of Object.entries(buckets || {})) raw[Date.parse(k)] = c
+  return raw
+}
+
+/** Sum counts from raw 5-minute buckets between t0 (inclusive) and t1 (exclusive). */
+export function sumRange(raw, t0, t1) {
+  let n = 0
+  for (let s = t0; s < t1; s += MIN5) n += raw[s] || 0
+  return n
+}
+
+/**
+ * One series per overlaid week: [this week, 1 week ago, ...], at native
+ * 5-minute resolution, up to 8 weeks back (and only weeks that overlap the
+ * recorded data at all). The current week is truncated at the current bucket
+ * — no fake zeroes drawn for the future. Counts are rates per hour
+ * (bucket count * 12): a lone visit in a 5-minute bucket reads as "12/h".
+ * The coarser ranges use per-day rates instead (unitMinutes = 24*60).
+ */
+export function weeklySeries(buckets) {
+  const raw = rawTimes(buckets)
+  const times = Object.keys(raw).map(Number)
+  if (!times.length) return null
+  const now = Date.now()
+  const thisMonday = mondayUTC(now)
+  const oldest = Math.min(...times)
+  // Weeks back as far as the data reaches: difference in Monday indices.
+  const available = (thisMonday - mondayUTC(oldest)) / WEEK + 1
+  const count = Math.min(available, 8)
+  const out = []
+  for (let back = 0; back < count; back++) {
+    const start = thisMonday - back * WEEK
+    const end = back === 0
+      ? Math.min(start + WEEK, Math.floor(now / MIN5) * MIN5 + MIN5)
+      : start + WEEK
+    const points = []
+    for (let t = start; t < end; t += MIN5) {
+      points.push({ t, count: raw[t] || 0 })
+    }
+    out.push({
+      points,
+      label: back === 0 ? 'this week' : `${back}w ago`,
+      opacity: Math.max(0.15, 1 - back * 0.25),
+      area: back === 0,
+    })
+  }
+  return {
+    series: out,
+    t0: thisMonday,
+    t1: thisMonday + WEEK,
+    rate: HOUR / MIN5,
+    binMinutes: 5,
+    unitMinutes: 60,
+    unit: 'hour',
+  }
+}
+
+/**
+ * Rolling window for the non-week ranges (x max = now), counts converted
+ * to per-day rates (the unit the month+ charts are read in).
+ * Ranges without a fixed span use the full data reach, but never less than
+ * their configured minSpan so the chart keeps a readable minimum x scale.
+ */
+export function rollingSeries(buckets, rangeKey) {
+  const raw = rawTimes(buckets)
+  const times = Object.keys(raw).map(Number)
+  if (!times.length) return null
+  const { span, bucket, minSpan = 0 } = RANGES[rangeKey]
+  const t1 = Math.floor(Date.now() / bucket) * bucket + bucket
+  const earliest = Math.floor(Math.min(...times) / bucket) * bucket
+  const t0 = span != null
+    ? t1 - span
+    : Math.min(earliest, t1 - minSpan)
+  const points = []
+  for (let t = t0; t < t1; t += bucket) {
+    points.push({ t, count: sumRange(raw, t, t + bucket) })
+  }
+  return {
+    series: [{ points, label: '', opacity: 1, area: true }],
+    t0,
+    t1,
+    rate: DAY / bucket,
+    binMinutes: bucket / 60e3,
+    unitMinutes: 24 * 60,
+    unit: 'day',
+  }
+}
+
+/**
+ * Day view: raw 5-minute bucket counts for the current 24-hour window.
+ * No smoothing or rate conversion is applied; counts are used as-is.
+ */
+export function daySeries(buckets) {
+  const raw = rawTimes(buckets)
+  const now = Date.now()
+  const { span, bucket } = RANGES.day
+  const t1 = Math.floor(now / bucket) * bucket + bucket
+  const t0 = t1 - span
+  const points = []
+  for (let t = t0; t < t1; t += bucket) {
+    points.push({ t, count: raw[t] || 0 })
+  }
+  return {
+    series: [{ points, label: '', opacity: 1, area: false }],
+    t0,
+    t1,
+    rate: 1,
+    binMinutes: bucket / 60e3,
+    unitMinutes: bucket / 60e3,
+    unit: '5min',
+  }
+}
+
+/** Dispatch to daily, weekly or rolling series based on the selected range. */
+export function makeSeries(buckets, rangeKey) {
+  if (rangeKey === 'day') return daySeries(buckets)
+  if (rangeKey === 'week') return weeklySeries(buckets)
+  return rollingSeries(buckets, rangeKey)
+}
+
+/**
+ * Absolute UTC time window for a given range key. Used to filter visits,
+ * transitions and views to the same period the charts are showing.
+ * Returns { t0, t1 } where null means unbounded.
+ */
+export function rangeWindow(rangeKey) {
+  const now = Date.now()
+  if (rangeKey === 'week') {
+    const start = mondayUTC(now)
+    return { t0: start, t1: start + WEEK }
+  }
+  if (rangeKey === 'all') {
+    return { t0: null, t1: null }
+  }
+  const { span, bucket } = RANGES[rangeKey]
+  const t1 = Math.floor(now / bucket) * bucket + bucket
+  return { t0: t1 - span, t1 }
+}

frontend/src/analytics/transitions.js

@@ -0,0 +1,924 @@
+/**
+ * Radial transition map and helpers.
+ *
+ * Site map following the menu structure: top-level items in a row at the
+ * top (below the external source row), each item's subtree fanning out
+ * below it in menu order along a slightly circular downward arc. Index
+ * pages with no views are omitted, their children moving up in their
+ * place. All pages of the site are shown (from /_api/pages), plus any
+ * extra paths seen in transitions (deleted pages); these form their own
+ * top-level groups. Internal path -> path transitions join opposite
+ * directions into straight connections (middle width = total
+ * count; connectors flare into the node pills at both ends and wrap
+ * around their backs, surrounding them; the pills are drawn on top). Connection width grows
+ * logarithmically with the count (a single count renders as a ~1 px
+ * line, uncapped growth); connections carrying less than 1% of the total
+ * traffic are pruned, which naturally keeps the graph under ~100
+ * connections. Animated beads flow along every edge in each direction,
+ * emitted at time intervals inversely proportional (linear) to the
+ * directional count.
+ * External sources appear as nodes in a row above the map. Sources are
+ * identified from visit records in this order: utm_campaign, utm_source,
+ * referer, then other utm_* tags. Visits with a UTM tag are grouped under
+ * that tag's value, not under the referer domain. A UTM source node only
+ * becomes a clickable link when every visit carrying that UTM tag came
+ * from the same referer. External exits are full-size nodes just outside
+ * their source page, angled away from the center. Each distinct full exit
+ * URL is its own node. Self-loops (reload pings) are skipped.
+ */
+
+import { MIN_READ_SECONDS } from './format.js'
+
+// Nodes are constant-size pills (stadium rects) holding the slug and the
+// view count on two centered lines. TNODE_BOUND is the pill's bounding
+// radius, used for layout clearance and placement; connectors and flows
+// use the exact outline geometry instead (pillContact below).
+export const TNODE_W = 160
+export const TNODE_H = 54
+const TNODE_BOUND = Math.hypot(TNODE_W, TNODE_H) / 2
+
+const PILL_R = TNODE_H / 2 // cap radius and straight-section half-height
+const PILL_OFF = TNODE_W / 2 - PILL_R // x offset of the cap centers
+
+/**
+ * Where the ray from a node center along (ux, uy) exits the pill outline
+ * (a capsule: straight top/bottom plus semicircular caps), enlarged by
+ * `margin`. Returns the distance `t` to the contact point and the outline
+ * arc position `s` of that point (see pillPointAt).
+ */
+const pillContact = (ux, uy, margin = 0) => {
+  const r = PILL_R + margin
+  const off = PILL_OFF + margin
+  const q = (Math.PI / 2) * r
+  // Straight top/bottom: valid when the crossing lands on the flat section.
+  let tf = Infinity
+  if (Math.abs(uy) > 1e-9) {
+    const t = r / Math.abs(uy)
+    if (Math.abs(t * ux) <= off + 1e-9) tf = t
+  }
+  // Rounded cap on the side the ray points to.
+  const cx = off * (ux >= 0 ? 1 : -1)
+  const disc = r * r - (cx * uy) ** 2
+  const tc = disc >= 0 ? cx * ux + Math.sqrt(disc) : Infinity
+  if (tf <= tc) {
+    const x = tf * ux
+    return { t: tf, s: uy > 0 ? q + off - x : q + 2 * off + Math.PI * r + x + off }
+  }
+  if (tc < Infinity) {
+    let th = Math.atan2(tc * uy, tc * ux - cx)
+    if (th < 0) th += 2 * Math.PI
+    const s = cx > 0
+      ? th <= Math.PI / 2
+        ? th * r
+        : q + 4 * off + Math.PI * r + (th - (3 * Math.PI) / 2) * r
+      : q + 2 * off + (th - Math.PI / 2) * r
+    return { t: tc, s }
+  }
+  return { t: TNODE_BOUND + margin, s: 0 }
+}
+
+/** Total perimeter of the (margined) pill outline. */
+const pillPerimeter = (margin = 0) =>
+  4 * (PILL_OFF + margin) + 2 * Math.PI * (PILL_R + margin)
+
+/**
+ * Point on the pill outline at arc position `s`, counterclockwise from the
+ * right cap tip: right cap up, top flat right-to-left, left cap down,
+ * bottom flat left-to-right, right cap up to the tip. Pills are never
+ * rotated, so the returned offset from the node center is in absolute
+ * coordinates.
+ */
+const pillPointAt = (s, margin = 0) => {
+  const r = PILL_R + margin
+  const off = PILL_OFF + margin
+  const P = pillPerimeter(margin)
+  const q = (Math.PI / 2) * r
+  s = ((s % P) + P) % P
+  if (s < q) {
+    const th = s / r
+    return [off + r * Math.cos(th), r * Math.sin(th)]
+  }
+  s -= q
+  if (s < 2 * off) return [off - s, r]
+  s -= 2 * off
+  if (s < Math.PI * r) {
+    const th = Math.PI / 2 + s / r
+    return [-off + r * Math.cos(th), r * Math.sin(th)]
+  }
+  s -= Math.PI * r
+  if (s < 2 * off) return [-off + s, -r]
+  s -= 2 * off
+  const th = (3 * Math.PI) / 2 + s / r
+  return [off + r * Math.cos(th), r * Math.sin(th)]
+}
+
+/** Unit tangent to the pill outline at arc position `s`, in the direction
+ * of increasing `s` (numeric; exact on both flats and caps). */
+const pillTangent = (s, margin = 0) => {
+  const [x1, y1] = pillPointAt(s - 0.5, margin)
+  const [x2, y2] = pillPointAt(s + 0.5, margin)
+  const m = Math.hypot(x2 - x1, y2 - y1) || 1
+  return [(x2 - x1) / m, (y2 - y1) / m]
+}
+
+// Edge width (half-width of the thin middle) grows logarithmically with
+// the count. The constants are scaled down by ~10× so busy ranges (day,
+// year) do not overwhelm the graph with fat connectors. A single recorded
+// transition still renders as a faint ~0.4 px line. Connections carrying
+// less than PRUNE_FRACTION of the total traffic are not drawn at all (this
+// also keeps the graph under ~100 connections).
+const WMID_MIN = 0.2
+const WIDTH_GROWTH = 0.15
+const PRUNE_FRACTION = 0.01
+
+// Beads: each edge direction emits beads at count * BEAD_RATE beads per
+// second (linear in the count). The rate is reduced ~10× across all time
+// scales to keep the animation lightweight. The component simulates every
+// bead independently in JS at BEAD_SPEED along the edge, with no limit on
+// beads in flight.
+export const BEAD_SPEED = 180 // svg units per second
+export const BEAD_R = 3.2
+const BEAD_RATE = 0.012 // beads per second per recorded transition
+const FLOW_OFFSET = 3 // lane offset to the right of the travel direction
+
+const MAX_EXT_IN = 8 // referer nodes in the top row
+const MAX_EXT_OUT = 12 // exit nodes, at most MAX_EXT_OUT_PER_PAGE per page
+const MAX_EXT_OUT_PER_PAGE = 3
+
+/** Flatten the site tree into navigation order via DFS. */
+function buildNavigationOrder(pageTree) {
+  const order = new Map()
+  const walk = (items) => {
+    for (const item of items || []) {
+      const p = `/${item.path}`
+      if (!order.has(p)) order.set(p, order.size)
+      walk(item.children)
+    }
+  }
+  walk(pageTree)
+  return order
+}
+
+/** Map page paths to their article titles from the site tree. */
+function buildTitleMap(pageTree) {
+  const titles = new Map()
+  const walk = (items) => {
+    for (const item of items || []) {
+      titles.set(`/${item.path}`, item.title)
+      walk(item.children)
+    }
+  }
+  walk(pageTree)
+  return titles
+}
+
+/** Extract internal page-to-page transitions, excluding self-loops. */
+function collectInternalTransitions(transitions) {
+  const internal = []
+  for (const [fr, tos] of Object.entries(transitions || {})) {
+    if (!fr.startsWith('/')) continue
+    for (const [to, count] of Object.entries(tos)) {
+      if (to.startsWith('/') && to !== fr) internal.push({ fr, to, count })
+    }
+  }
+  return internal
+}
+
+/** Domain-only label for an external origin (path and www. removed). */
+function extLabel(ext) {
+  try {
+    const host = new URL(ext).hostname.replace(/^www\./, '')
+    return host.length > 25 ? `${host.slice(0, 24)}…` : host
+  } catch {
+    const s = ext.replace(/^https?:\/\//, '').replace(/^www\./, '').split('/')[0]
+    return s.length > 25 ? `${s.slice(0, 24)}…` : s
+  }
+}
+
+/**
+ * Collect outgoing external transitions: page path -> full exit URL.
+ * Aggregated per (URL, page) pair. Incoming external links are now derived
+ * from visit records (which carry UTM tags), so only exits remain here.
+ */
+function collectExitPairs(transitions) {
+  const pairs = new Map() // `${ext} ${page}` -> {ext, page, out}
+  for (const [fr, tos] of Object.entries(transitions || {})) {
+    if (!fr.startsWith('/')) continue // ignore external -> anything
+    for (const [to, count] of Object.entries(tos)) {
+      if (!to.startsWith('http')) continue
+      const k = `${to} ${fr}`
+      const p = pairs.get(k) || { ext: to, page: fr, out: 0 }
+      p.out += count
+      pairs.set(k, p)
+    }
+  }
+  return [...pairs.values()]
+}
+
+/** Build nodes with depth and a path lookup map; children are wired to parents. */
+function buildNodeTree(internal, navOrder) {
+  const paths = new Set(['/', ...navOrder.keys()])
+  for (const e of internal) { paths.add(e.fr); paths.add(e.to) }
+
+  const depth = (p) => (p === '/' ? 0 : p.split('/').length - 1)
+  const nodes = [...paths].map((p) => ({
+    path: p, depth: depth(p), angle: 0, children: [],
+  }))
+  const byPath = new Map(nodes.map((n) => [n.path, n]))
+
+  // Parent is the nearest ancestor present in the map, front page last.
+  const parentOf = (p) => {
+    let q = p
+    while (q !== '/') {
+      q = q.slice(0, q.lastIndexOf('/')) || '/'
+      if (byPath.has(q)) return byPath.get(q)
+    }
+    return byPath.get('/')
+  }
+  for (const n of nodes) {
+    if (n.path !== '/') parentOf(n.path).children.push(n)
+  }
+
+  return { nodes, byPath, root: byPath.get('/') }
+}
+
+/** Sort each node's children by navigation order, recursively. */
+function sortByNav(root, navOrder) {
+  const byNav = (a, b) =>
+    (navOrder.get(a.path) ?? Infinity) - (navOrder.get(b.path) ?? Infinity)
+    || a.path.localeCompare(b.path)
+  const walk = (n) => {
+    n.children.sort(byNav)
+    n.children.forEach(walk)
+  }
+  walk(root)
+}
+
+/** Compute median reading time per article in whole minutes. */
+function buildReadMinutes(visits) {
+  const times = {}
+  for (const v of visits || []) {
+    for (const [path, sec] of Object.entries(v.read || {})) {
+      if (sec >= MIN_READ_SECONDS) {
+        ;(times[path] || (times[path] = [])).push(sec)
+      }
+    }
+  }
+  const minutes = {}
+  for (const [path, arr] of Object.entries(times)) {
+    arr.sort((a, b) => a - b)
+    const mid = Math.floor(arr.length / 2)
+    const median =
+      arr.length % 2 ? arr[mid] : (arr[mid - 1] + arr[mid]) / 2
+    minutes[path] = Math.max(1, Math.round(median / 60))
+  }
+  return minutes
+}
+
+/** Compute view counts, labels and hidden flags for each node. */
+function annotateNodes(nodes, viewsData, titles, readMinutes) {
+  const viewCount = (p) => {
+    let n = 0
+    for (const c of Object.values(viewsData?.[p] || {})) n += c
+    return n
+  }
+
+  for (const n of nodes) {
+    n.views = viewCount(n.path)
+    n.readMin = readMinutes[n.path] || 0
+    // Article title inside the pill (shortened with ellipsis as needed),
+    // slug as fallback for pages missing from the site tree. The short
+    // path (last two segments, no leading /) renders above the pill; the
+    // front page shows a home symbol there instead (larger).
+    const slug = n.path.split('/').pop()
+    const label = titles.get(n.path) || (n.path === '/' ? '🏠︎' : slug)
+    n.label = label.length > 24 ? `${label.slice(0, 23)}…` : label
+    const segs = n.path.split('/').filter(Boolean)
+    n.crumb = n.path === '/'
+      ? '🏠︎'
+      : segs.length > 2 ? `…/${segs.slice(-2).join('/')}` : segs.join('/')
+    n.title = titles.get(n.path) || ''
+    // Category (non-leaf) pages with no views in this window are omitted:
+    // their children move up in their place (see layoutGroups).
+    n.hidden = n.children.length > 0 && n.views === 0
+  }
+}
+
+/**
+ * Top-down layout following the menu structure: top-level items in an
+ * equally spaced row at the top (right below the external source row),
+ * the row following a shallow circular sag (center lowest) so connections
+ * between neighbors do not overlap the pills in between. Each top item's
+ * whole subtree fans out from it in menu (DFS preorder) order along a
+ * parabola that leaves the parent heading straight down and gradually
+ * bends to the right — no horizontal space is reserved for fans, they
+ * extend under the slots to their right. Hidden index pages are omitted
+ * from the fan; when the top item itself is hidden, the fan shifts one
+ * slot up, the first visible child taking the top position. The short
+ * path shown above each pill (last two segments) keeps the omitted menu
+ * level visible.
+ * Also returns curved spoke paths tracing each fan: top slot to first
+ * member, then member to member in menu order, each bowed to the right.
+ */
+function layoutGroups(root) {
+  // Top slots are spaced well over one pill width apart regardless of
+  // fan sizes.
+  const SLOT = TNODE_W + 100
+  const CLEAR = TNODE_W * 0.8 // fan spacing per member along the curve
+
+  // First pass: visible members per group, in menu order. Hidden index
+  // pages are skipped, but their children still appear. The front page
+  // forms its own group.
+  const groups = []
+  for (const g of [root, ...root.children]) {
+    const members = []
+    if (g === root) {
+      if (!g.hidden) members.push(g)
+    } else {
+      const walk = (n) => {
+        if (!n.hidden) members.push(n)
+        n.children.forEach(walk)
+      }
+      walk(g)
+    }
+    if (members.length) groups.push(members)
+  }
+
+  // Top row on a true circular sag: center lowest, edges raised by SAG.
+  const half = ((groups.length - 1) * SLOT) / 2 || 1
+  const SAG = TNODE_H * 0.6
+  const Rc = (half * half + SAG * SAG) / (2 * SAG)
+  const topY = (x) => SAG - Rc + Math.sqrt(Rc * Rc - x * x)
+
+  // Second pass: place groups. Fan members follow a right-opening cubic
+  // p(t) = (gx + B t³, y0 + t): the tangent stays vertical near the
+  // parent (leaving almost straight down) and bends right gently,
+  // reaching ~50° from vertical at the last member. Member spacing along
+  // the curve is the pill clearance (dt integrated against curve speed).
+  const spokePairs = [] // [from node, to node] — paths emitted below
+  groups.forEach((members, gi) => {
+    const gx = gi * SLOT - half
+    const y0 = topY(gx)
+    members[0].x = gx
+    members[0].y = y0
+    const m = members.length - 1
+    if (!m) return
+    const tMax = m * CLEAR * 0.9
+    const B = 0.4 / (tMax * tMax)
+    let t = 0
+    for (let i = 1; i <= m; i++) {
+      const bend = 3 * B * t * t
+      t += CLEAR / Math.hypot(bend, 1)
+      const n = members[i]
+      n.x = gx + B * t * t * t
+      n.y = y0 + t
+      spokePairs.push([members[i - 1], n])
+    }
+  })
+
+  // Fan spokes bow to the right via a quadratic control point pushed
+  // rightward from the segment midpoint.
+  const spokes = spokePairs.map(([p, n]) => {
+    const mx = (p.x + n.x) / 2
+    const my = (p.y + n.y) / 2
+    const bow = Math.hypot(n.x - p.x, n.y - p.y) * 0.18
+    return {
+      d: `M ${p.x.toFixed(2)} ${p.y.toFixed(2)} `
+       + `Q ${(mx + bow).toFixed(2)} ${my.toFixed(2)} ${n.x.toFixed(2)} ${n.y.toFixed(2)}`,
+    }
+  })
+  return { GAP: TNODE_H * 2.6, spokes }
+}
+
+/** Collapse opposite transition directions into one unordered pair per page pair. */
+function aggregatePairs(internal) {
+  const pairs = new Map() // unordered pair key -> [countAB, countBA]
+  for (const e of internal) {
+    const forward = e.fr < e.to
+    const k = forward ? `${e.fr} ${e.to}` : `${e.to} ${e.fr}`
+    const c = pairs.get(k) || [0, 0]
+    c[forward ? 0 : 1] += e.count
+    pairs.set(k, c)
+  }
+  return pairs
+}
+
+const fmtPt = (p) => `${p[0].toFixed(2)} ${p[1].toFixed(2)}`
+
+/**
+ * Build one ribbon edge between two nodes with counts ab and ba.
+ * `wMid` is the half-width of the thin middle (already strength-scaled by
+ * the caller). Each end flares into the node's pill surround (the outline
+ * enlarged by margin S): the flare contact points follow the pill outline
+ * a constant arc distance to each side of the direct contact point, and
+ * the back of the ribbon wraps all the way around the pill between them,
+ * surrounding the node. The pills themselves are drawn on top.
+ */
+function buildRibbon(a, b, ab, ba, wMid, external = false) {
+  const count = ab + ba
+  const len = Math.hypot(b.x - a.x, b.y - a.y) || 1
+  const ux = (b.x - a.x) / len
+  const uy = (b.y - a.y) / len
+  const nx = -uy
+  const ny = ux
+
+  // Direct contact: where the centerline exits each pill's surround.
+  const S = 4
+  const cA = pillContact(ux, uy, S)
+  const cB = pillContact(-ux, -uy, S)
+
+  // Flares take a fair share of the free span while leaving the
+  // count-scaled thin middle a visible share of the connection length.
+  // The maximum flare length scales with the contact distance so wide
+  // approach angles still show a wide connector end.
+  const free = Math.max(0, len - cA.t - cB.t)
+  const FLARE = Math.min(Math.max(cA.t, cB.t) * 1.2, free * 0.4)
+
+  // Flare endpoints: walk the outline a constant arc distance to each
+  // side of the direct contact point (spanning flats and caps alike).
+  const D = (Math.PI / 4) * (PILL_R + S)
+  // Per node: endpoints for the +n (left) and -n (right) flare sides,
+  // each with its arc position, absolute point, and an outline tangent
+  // oriented back toward the direct contact point.
+  const ends = (cx, cy, contact) => {
+    const pick = (s) => {
+      const [px, py] = pillPointAt(s, S)
+      // Outline tangent oriented back toward the direct contact point
+      // (the flare side sweeps from the contact point around to its
+      // endpoint and into the connection), so it can never fork outward.
+      const tan = pillTangent(s, S)
+      if (s > contact.s) { tan[0] = -tan[0]; tan[1] = -tan[1] }
+      return { s, p: [cx + px, cy + py], tan, side: px * nx + py * ny }
+    }
+    const plus = pick(contact.s + D)
+    const minus = pick(contact.s - D)
+    return plus.side >= 0 ? [plus, minus] : [minus, plus]
+  }
+  const [aLeftEnd, aRightEnd] = ends(a.x, a.y, cA)
+  const [bLeftEnd, bRightEnd] = ends(b.x, b.y, cB)
+
+  // Point on the connection centerline at distance t from A, offset s
+  // perpendicular to it.
+  const P = (t, s) => [
+    a.x + t * ux + s * nx,
+    a.y + t * uy + s * ny,
+  ]
+
+  // One side of a flare: from the outline endpoint, leaving tangent to
+  // the pill outline, to the connection middle arriving parallel with
+  // the centerline. The tangent pull is clamped so the control point
+  // stays well on its own side of the centerline — otherwise a long
+  // flare on a rounded cap crosses the opposite side.
+  const flarePoints = (end, midT, s, dir) => {
+    let hEnd = FLARE * 0.65
+    const hMid = FLARE * 0.4
+    const tanS = end.tan[0] * nx + end.tan[1] * ny // inward rate
+    if (tanS * end.side < 0) {
+      hEnd = Math.min(hEnd, (Math.abs(end.side) * 0.6) / Math.abs(tanS))
+    }
+    return {
+      pEnd: end.p,
+      cEnd: [end.p[0] + end.tan[0] * hEnd, end.p[1] + end.tan[1] * hEnd],
+      cMid: P(midT - dir * hMid, s * wMid),
+      pMid: P(midT, s * wMid),
+    }
+  }
+
+  // Emit a cubic in either traversal direction. Reversing a cubic requires
+  // swapping its control points, rather than recalculating the geometry.
+  const curve = (f, reverse = false) => {
+    if (!reverse) {
+      return `C ${fmtPt(f.cEnd)} ${fmtPt(f.cMid)} ${fmtPt(f.pMid)} `
+    }
+    return `C ${fmtPt(f.cMid)} ${fmtPt(f.cEnd)} ${fmtPt(f.pEnd)} `
+  }
+
+  // Trace the surround outline the long way around (behind the node) from
+  // arc s1 to arc s2. Sampled as a polyline: the visible result is a thin
+  // halo hugging the pill, so exact arc segments are unnecessary.
+  const outlineWrap = (cx, cy, s1, s2) => {
+    const per = pillPerimeter(S)
+    const dPlus = ((s2 - s1) % per + per) % per
+    const total = dPlus > per / 2 ? dPlus : per - dPlus
+    const dir = dPlus > per / 2 ? 1 : -1
+    const n = Math.max(4, Math.ceil(total / 6))
+    let out = ''
+    for (let i = 1; i <= n; i++) {
+      const [x, y] = pillPointAt(s1 + (dir * total * i) / n, S)
+      out += `L ${(cx + x).toFixed(2)} ${(cy + y).toFixed(2)} `
+    }
+    return out
+  }
+
+  const aLeft = flarePoints(aLeftEnd, cA.t + FLARE, 1, 1)
+  const bLeft = flarePoints(bLeftEnd, len - cB.t - FLARE, 1, -1)
+  const bRight = flarePoints(bRightEnd, len - cB.t - FLARE, -1, -1)
+  const aRight = flarePoints(aRightEnd, cA.t + FLARE, -1, 1)
+
+  // Each end wraps the full back of the node pill between its two flare
+  // contact points (bLeft -> bRight around B, aRight -> aLeft around A).
+  const d = `M ${fmtPt(aLeft.pEnd)} `
+    + curve(aLeft)
+    + `L ${fmtPt(bLeft.pMid)} `
+    + curve(bLeft, true)
+    + outlineWrap(b.x, b.y, bLeftEnd.s, bRightEnd.s)
+    + curve(bRight)
+    + `L ${fmtPt(aRight.pMid)} `
+    + curve(aRight, true)
+    + outlineWrap(a.x, a.y, aRightEnd.s, aLeftEnd.s)
+    + 'Z'
+
+  return {
+    d,
+    title: `${a.path} ↔ ${b.path}: ${count} (${ab} / ${ba})`,
+    external,
+  }
+}
+
+/**
+ * Flow descriptors for the bead animation, one per edge direction with a
+ * nonzero count: a straight segment running from inside the source node
+ * to inside the target node (beads render under the node pills, so
+ * they emerge from and vanish beneath the nodes rather than popping in
+ * at the surround), plus the emission interval (seconds between beads,
+ * inverse of count * BEAD_RATE). Each segment is offset to the
+ * right-hand side of its travel direction, so opposing flows on the same
+ * edge run on parallel lanes instead of colliding. The component turns
+ * these into independently simulated beads.
+ */
+function buildFlows(a, b, ab, ba, visualScale = 1) {
+  const len = Math.hypot(b.x - a.x, b.y - a.y) || 1
+  const ux = (b.x - a.x) / len
+  const uy = (b.y - a.y) / len
+  const rA = pillContact(ux, uy).t
+  const rB = pillContact(-ux, -uy).t
+  const t0 = rA / 3
+  const t1 = len - rB / 3
+  if (t1 - t0 < 12) return []
+
+  // Unit normal pointing to the visual right of the A -> B direction.
+  const rx = -uy
+  const ry = ux
+  const span = t1 - t0
+  const flow = (count, fromT, toT) => {
+    // Each direction shifts to its own right, away from the opposing lane.
+    const s = fromT < toT ? FLOW_OFFSET : -FLOW_OFFSET
+    return {
+      x1: a.x + fromT * ux + s * rx,
+      y1: a.y + fromT * uy + s * ry,
+      x2: a.x + toT * ux + s * rx,
+      y2: a.y + toT * uy + s * ry,
+      len: span,
+      interval: 1 / (count * BEAD_RATE * visualScale),
+    }
+  }
+  const flows = []
+  if (ab) flows.push(flow(ab, t0, t1))
+  if (ba) flows.push(flow(ba, t1, t0))
+  return flows
+}
+
+/**
+ * Half-width for a connection middle: logarithmic in the count, anchored
+ * so a single count lands exactly at WMID_MIN (~1 px line), uncapped.
+ * Absolute on purpose — cool routes stay visible regardless of how hot
+ * the hottest connection is.
+ */
+const scaledWidth = (count) => {
+  if (count <= 0) return 0
+  return WMID_MIN + WIDTH_GROWTH * Math.log1p(count - 1)
+}
+
+/**
+ * Build ribbon edges and bead flows for every aggregated page-to-page
+ * pair. Pairs carrying less than PRUNE_FRACTION of the total internal
+ * traffic are pruned (this naturally bounds the graph to ~100 edges).
+ */
+function buildInternalEdges(pairs, byPath, visualScale = 1) {
+  let total = 0
+  for (const [, [ab, ba]] of pairs) total += ab + ba
+  const minCount = total * PRUNE_FRACTION
+
+  const edges = []
+  const flows = []
+  for (const [k, [ab, ba]] of pairs) {
+    if (ab + ba < minCount) continue
+    const [pf, pt] = k.split(' ')
+    const a = byPath.get(pf)
+    const b = byPath.get(pt)
+    if (a.hidden || b.hidden) continue // unplaced index pages are omitted
+    const wMid = scaledWidth((ab + ba) * visualScale)
+    if (wMid <= 0) continue
+    edges.push(buildRibbon(a, b, ab, ba, wMid))
+    flows.push(...buildFlows(a, b, ab, ba, visualScale))
+  }
+  return { edges, flows }
+}
+
+/**
+ * Sum the bucketed transition matrix (from -> to -> bucket ISO -> count)
+ * into a plain from -> to -> count matrix for the window [t0, t1).
+ */
+export function filterTransitionsByRange(transitions, t0, t1) {
+  const out = {}
+  for (const [fr, tos] of Object.entries(transitions || {})) {
+    for (const [to, buckets] of Object.entries(tos)) {
+      let n = 0
+      for (const [k, c] of Object.entries(buckets)) {
+        const t = Date.parse(k)
+        if ((t0 == null || t >= t0) && (t1 == null || t < t1)) n += c
+      }
+      if (n) {
+        out[fr] = out[fr] || {}
+        out[fr][to] = n
+      }
+    }
+  }
+  return out
+}
+
+/** Keep only the 5-minute view buckets that fall inside [t0, t1). */
+export function filterViewsByRange(views, t0, t1) {
+  const filtered = {}
+  for (const [path, buckets] of Object.entries(views || {})) {
+    const out = {}
+    for (const [k, c] of Object.entries(buckets)) {
+      const t = Date.parse(k)
+      if ((t0 == null || t >= t0) && (t1 == null || t < t1)) out[k] = c
+    }
+    if (Object.keys(out).length) filtered[path] = out
+  }
+  return filtered
+}
+
+/** Keep only visits whose start time falls inside [t0, t1). */
+export function filterVisitsByRange(visits, t0, t1) {
+  const out = []
+  for (const v of visits || []) {
+    const t = Date.parse(v.start)
+    if ((t0 == null || t >= t0) && (t1 == null || t < t1)) out.push(v)
+  }
+  return out
+}
+
+const UTM_PRIORITY = ['utm_campaign', 'utm_source']
+const UTM_FALLBACK = ['utm_medium', 'utm_content', 'utm_term', 'utm_id']
+
+/** Identify the source of a visit according to the requested priority. */
+function identifySource(visit) {
+  const utm = visit.utm || {}
+  for (const k of UTM_PRIORITY) {
+    const v = utm[k]
+    if (v) return { value: v, isUtm: true }
+  }
+  if (visit.referer?.startsWith('http')) {
+    return { value: visit.referer, isUtm: false }
+  }
+  for (const k of UTM_FALLBACK) {
+    const v = utm[k]
+    if (v) return { value: v, isUtm: true }
+  }
+  return null
+}
+
+/**
+ * Collect source -> entry page pairs from visit records. Sources are
+ * identified by UTM campaign/source (then referer, then other UTM tags).
+ * A UTM source only gets a link href when every visit using that source
+ * came from the same referer; referer sources always link to their origin.
+ */
+function collectSourcePairs(visits) {
+  const groups = new Map() // `${source}\0${page}` -> pair
+  for (const v of visits || []) {
+    const src = identifySource(v)
+    if (!src) continue
+    const k = `${src.value}\0${v.entry}`
+    const p = groups.get(k) || {
+      source: src.value,
+      page: v.entry,
+      in: 0,
+      refs: new Set(),
+      missingRef: false,
+      href: null,
+      isUtm: src.isUtm,
+    }
+    p.in += 1
+    if (v.referer?.startsWith('http')) {
+      p.refs.add(v.referer)
+    } else {
+      p.missingRef = true
+    }
+    groups.set(k, p)
+  }
+  for (const p of groups.values()) {
+    if (p.isUtm && !p.missingRef && p.refs.size === 1) {
+      const ref = [...p.refs][0]
+      if (ref.startsWith('http')) p.href = ref
+    } else if (!p.isUtm && p.source.startsWith('http')) {
+      p.href = p.source
+    }
+  }
+  return [...groups.values()]
+}
+
+/**
+ * Place external source and exit nodes and build their edges and bead
+ * flows.
+ * Sources (incoming links) are derived from visit UTM/referer data and form
+ * a row centered above the map, hottest first; exits come from the
+ * transition matrix and sit just outside their source page.
+ * Widths and pruning use the same log scale and traffic-share rule as
+ * internal connections.
+ */
+function buildExternal({ sources, exits }, byPath, gap, innerBounds, visualScale = 1) {
+  const extNodes = []
+  const edges = []
+  const flows = []
+  let extTotal = 0
+  for (const p of sources) extTotal += p.in
+  for (const p of exits) extTotal += p.out
+  const minCount = extTotal * PRUNE_FRACTION
+  const liveSources = sources.filter((p) => byPath.has(p.page))
+  const liveExits = exits.filter((p) => byPath.has(p.page))
+  if (!liveSources.length && !liveExits.length) return { extNodes, edges, flows }
+
+  const width = (count) => scaledWidth(count * visualScale)
+
+  // Pill-shape overlap test (axis-aligned pills): much tighter than the
+  // bounding-circle test, so diagonal placements can sit close.
+  const overlaps = (x, y) =>
+    [...byPath.values(), ...extNodes].some(
+      (n) => !n.hidden
+        && Math.abs(n.x - x) < TNODE_W + 12
+        && Math.abs(n.y - y) < TNODE_H + 12,
+    )
+
+  // Incoming: one source node per identified source, in a row centered
+  // above the map, with an edge to each page that source led to.
+  const bySource = new Map() // source -> pairs, sorted by total incoming count
+  for (const p of liveSources.filter((p) => p.in >= minCount)) {
+    const g = bySource.get(p.source) || []
+    g.push(p)
+    bySource.set(p.source, g)
+  }
+  const origins = [...bySource]
+    .map(([source, ps]) => ({
+      source,
+      ps,
+      total: ps.reduce((s, p) => s + p.in, 0),
+      href: ps[0].href,
+      isUtm: ps[0].isUtm,
+    }))
+    .sort((a, b) => b.total - a.total)
+    .slice(0, MAX_EXT_IN)
+  if (origins.length) {
+    const cx = (innerBounds.x0 + innerBounds.x1) / 2
+    const y = innerBounds.y0 - TNODE_BOUND - 64
+    const spacing = TNODE_W + 44
+    const x0 = cx - ((origins.length - 1) * spacing) / 2
+    origins.forEach(({ source, ps, total, href, isUtm }, i) => {
+      const label = isUtm ? source : extLabel(source)
+      const xn = {
+        path: source,
+        href,
+        label: label.length > 25 ? `${label.slice(0, 24)}…` : label,
+        x: x0 + i * spacing,
+        y,
+        count: total,
+        kind: 'source',
+      }
+      extNodes.push(xn)
+      for (const p of ps) {
+        const page = byPath.get(p.page)
+        if (page.hidden) continue
+        const wMid = width(p.in)
+        if (wMid <= 0) continue
+        edges.push(buildRibbon(xn, page, p.in, 0, wMid, true))
+        flows.push(...buildFlows(xn, page, p.in, 0, visualScale))
+      }
+    })
+  }
+
+  // Outgoing: group by full URL so several links to the same domain stay
+  // distinct; each shows the total count across all pages linking to it.
+  // Placement looks for empty space around the source page, always
+  // leftward: diagonal down-left first (often right beside the source,
+  // no need to drop below the fans), then left, up-left, and steeper
+  // fallbacks; the distance grows until a spot is free. Several exits of
+  // one page start at different directions.
+  const GAP = gap
+  const DIRS = [
+    (3 * Math.PI) / 4,         // diagonal down-left
+    Math.PI,                   // left
+    (5 * Math.PI) / 4,         // diagonal up-left
+    Math.PI / 2 + 0.35,        // steep down-left
+    Math.PI - 0.35,            // shallow up-left
+    (3 * Math.PI) / 4 + 0.5,   // far down-left
+  ]
+  const outgoing = liveExits.filter((p) => p.out >= minCount)
+    .sort((a, b) => b.out - a.out)
+  const perPage = new Map()
+  const selected = []
+  for (const p of outgoing) {
+    const used = perPage.get(p.page) || 0
+    if (used >= MAX_EXT_OUT_PER_PAGE) continue
+    perPage.set(p.page, used + 1)
+    selected.push(p)
+    if (selected.length >= MAX_EXT_OUT) break
+  }
+
+  const exitNodes = new Map() // full URL -> node
+  const placedPerPage = new Map() // for the placement direction offset
+  for (const p of selected) {
+    const page = byPath.get(p.page)
+    if (page.hidden) continue
+    let xn = exitNodes.get(p.ext)
+    if (!xn) {
+      const used = placedPerPage.get(p.page) || 0
+      placedPerPage.set(p.page, used + 1)
+      let x = 0
+      let y = 0
+      let found = false
+      for (let di = 0; di < DIRS.length && !found; di++) {
+        const ang = DIRS[(used + di) % DIRS.length]
+        for (let dist = GAP; dist <= GAP * 3.5; dist += GAP * 0.4) {
+          x = page.x + Math.cos(ang) * dist
+          y = page.y + Math.sin(ang) * dist
+          if (!overlaps(x, y)) { found = true; break }
+        }
+      }
+      if (!found) continue // no empty space near the page: leave it out
+      xn = {
+        path: p.ext,
+        href: p.ext,
+        label: extLabel(p.ext),
+        x,
+        y,
+        count: 0,
+        kind: 'exit',
+      }
+      exitNodes.set(p.ext, xn)
+      extNodes.push(xn)
+    }
+    xn.count += p.out
+    const wMid = width(p.out)
+    if (wMid <= 0) continue
+    edges.push(buildRibbon(page, xn, p.out, 0, wMid, true))
+    flows.push(...buildFlows(page, xn, p.out, 0, visualScale))
+  }
+
+  return { extNodes, edges, flows }
+}
+
+/**
+ * Build the transition map model.
+ * Returns { nodes, edges, flows, extNodes, arcs, bounds } or null when
+ * there is nothing to show. `arcs` holds the family spokes; `nodes` only
+ * contains placed (visible) nodes.
+ */
+export function buildTransitionGraph(data, pageTree, visits = [], visualScale = 1) {
+  const internal = collectInternalTransitions(data?.transitions)
+  const sources = collectSourcePairs(visits)
+  const exits = collectExitPairs(data?.transitions)
+  const navOrder = buildNavigationOrder(pageTree)
+  const titles = buildTitleMap(pageTree)
+  const readMinutes = buildReadMinutes(visits)
+
+  if (!internal.length && !navOrder.size) return null
+
+  const { nodes, byPath, root } = buildNodeTree(internal, navOrder)
+  sortByNav(root, navOrder)
+  annotateNodes(nodes, data?.views, titles, readMinutes)
+  const { GAP, spokes } = layoutGroups(root)
+  const placed = nodes.filter((n) => !n.hidden)
+  const pairs = aggregatePairs(internal)
+  const { edges, flows } = buildInternalEdges(pairs, byPath, visualScale)
+
+  // Tight bounding box of the placed page nodes; external nodes extend it.
+  const pad = 16
+  const xs = placed.map((n) => n.x)
+  const ys = placed.map((n) => n.y)
+  const bounds = {
+    x0: Math.min(...xs) - TNODE_BOUND - pad,
+    y0: Math.min(...ys) - TNODE_BOUND - pad,
+    x1: Math.max(...xs) + TNODE_BOUND + pad,
+    y1: Math.max(...ys) + TNODE_BOUND + pad,
+  }
+
+  const ext = buildExternal({ sources, exits }, byPath, GAP, bounds, visualScale)
+  for (const xn of ext.extNodes) {
+    bounds.x0 = Math.min(bounds.x0, xn.x - TNODE_BOUND - pad)
+    bounds.y0 = Math.min(bounds.y0, xn.y - TNODE_BOUND - pad)
+    bounds.x1 = Math.max(bounds.x1, xn.x + TNODE_BOUND + pad)
+    bounds.y1 = Math.max(bounds.y1, xn.y + TNODE_BOUND + pad)
+  }
+
+  return {
+    nodes: placed,
+    edges: [...edges, ...ext.edges],
+    flows: [...flows, ...ext.flows],
+    extNodes: ext.extNodes,
+    arcs: spokes,
+    bounds,
+  }
+}

frontend/src/assets/pagerite.css

@@ -65,6 +65,12 @@
   box-sizing: border-box;
 }
 
+/* Links never underline — including SVG link text, which the UA stylesheet
+   underlines by default. */
+a {
+  text-decoration: none;
+}
+
 html {
   scroll-behavior: smooth;
   /* Native-scrollbar fallback styling (JS off or before pagerite.js runs):
@@ -132,22 +138,35 @@ body {
   overflow: hidden;
   /* Stack the design artwork and the page's own banner code on top of
      each other (artwork first): the banner is a background layer, author
-     code overlays it. A single child behaves exactly as before. */
+     code overlays it. A single child behaves exactly as before. The track
+     is explicitly banner-sized: an auto row would size to the content
+     (an SVG's intrinsic aspect ratio makes it far taller than the banner),
+     and children's height:100% would resolve against that bloated row. */
   display: grid;
+  grid-template: 100% / 100%;
 }
 
 /* :not(style, script): author-level display:block would override the UA's
-   display:none on those and render their source as banner text. */
+   display:none on those and render their source as banner text. No
+   width/height: the default stretch alignment fills the track without a
+   percentage-resolution cycle. */
 #page-banner>*:not(style, script) {
   grid-area: 1 / 1;
   display: block;
-  width: 100%;
-  height: 100%;
   object-fit: cover;
+  /* Banner artwork is bottom-anchored: the meaningful content (horizon,
+     ground, characters) sits at the bottom, so on wide viewports — where
+     the fixed-height banner crops the artwork vertically — the sky/top is
+     what scrolls out of view. object-position covers replaced elements
+     (img, canvas); inline SVG is anchored by the transform-origin below
+     together with preserveAspectRatio="...YMax slice" in the artwork. */
+  object-position: bottom;
   /* Scroll parallax: pagerite.js sets --pry on <html>; the banner stays
      windowed in place while the artwork drifts inside it. The scale
-     provides overscan so the drift never reveals an edge. */
+     provides overscan so the drift never reveals an edge; scaling from the
+     bottom keeps the artwork's bottom edge pinned to the banner's. */
   transform: scale(1.25) translateY(var(--pry, 0px));
+  transform-origin: bottom;
   will-change: transform;
 }
 
@@ -316,13 +335,15 @@ body.editing #main {
   gap: 0.6rem;
 }
 
-.editor-pens button {
+.editor-pens button,
+.editor-pens a {
   position: static;
   font: inherit;
   border: none;
   cursor: pointer;
   background: none;
   padding: 0;
+  text-decoration: none;
 }
 
 #sidebar {
@@ -488,17 +509,17 @@ article h1 .edit-link {
   opacity: 1;
 }
 
-/* Login/profile buttons injected by pagerite.js when Paskia SSO is in use.
+/* Login/profile links injected by pagerite.js when Paskia SSO is in use.
    They live inside the .editor-pens flex container in the banner's top-right
    corner and inherit its reset; keep only their opacity/text-shadow tweaks. */
-button.login-link,
-button.profile-link {
+.editor-pens a.login-link,
+.editor-pens a.profile-link {
   opacity: 0.7;
   text-shadow: 0 0 0.1em black;
 }
 
-button.login-link:hover,
-button.profile-link:hover {
+.editor-pens a.login-link:hover,
+.editor-pens a.profile-link:hover {
   opacity: 1;
 }
 
@@ -581,7 +602,7 @@ blockquote p {
   background: color-mix(in srgb, var(--admonition-color, var(--accent)) 7%, transparent);
 }
 
-.admonition > :last-child {
+.admonition> :last-child {
   margin-bottom: 0;
 }
 
@@ -683,12 +704,6 @@ td {
       transparent 75%);
 }
 
-tbody tr:nth-child(even) td {
-  background: linear-gradient(160deg,
-      color-mix(in srgb, var(--table-tint, var(--accent)) 9%, transparent),
-      color-mix(in srgb, var(--table-tint, var(--accent)) 3%, transparent) 75%);
-}
-
 tbody tr+tr td {
   border-top: 1px solid color-mix(in srgb, var(--table-tint, var(--accent)) 12%, transparent);
 }
@@ -782,8 +797,11 @@ figure:has(img[width]) {
 
    The rules below re-anchor the bleed for the layouts where the article
    is not viewport-centered; each just overrides width/margin-inline, and
-   later rules win at equal specificity. */
-figure:has(.wide) {
+   later rules win at equal specificity. The analytics dashboard uses the
+   same breakout directly on its container (div.wide — it is the page's
+   whole content, not a figure). */
+figure:has(.wide),
+div.wide {
   width: 100vw;
   max-width: none;
   margin-inline: calc(50% - 50vw);
@@ -903,7 +921,9 @@ article h2 {
     padding: 0.5rem 1rem;
   }
 
-  #sidebar ul {
+  /* Only the main level becomes a horizontal wrapping strip; submenus stay
+     vertical blocks attached under their parent item. */
+  #sidebar > ul {
     flex-direction: row;
     flex-wrap: wrap;
     gap: 0.5rem 1.2rem;

frontend/src/cmtheme.js

@@ -14,7 +14,22 @@ export const cmTheme = EditorView.theme({
     color: "var(--text)",
   },
   ".cm-scroller": { fontFamily: '"Fira Code", monospace' },
-  ".cm-content": { caretColor: "var(--text)" },
+  // Fira Code in CodeMirror: set the font on .cm-content (not only the
+  // scroller) and force every span inside to inherit it, so highlighting
+  // spans can't drift to a different font/metrics. Ligatures are disabled
+  // entirely — CodeMirror measures per character, and ligature glyphs
+  // render wider than the measured sum of their parts.
+  ".cm-content": {
+    caretColor: "var(--text)",
+    fontFamily: '"Fira Code", monospace',
+    fontVariantLigatures: "none",
+    fontFeatureSettings: '"calt" 0',
+    letterSpacing: "normal",
+  },
+  ".cm-content *": {
+    fontFamily: "inherit",
+    letterSpacing: "inherit",
+  },
   ".cm-cursor": { borderLeftColor: "var(--text)" },
   // basicSetup's active-line highlight assumes a dark theme.
   ".cm-activeLine": { backgroundColor: "transparent" },

frontend/src/main.js

@@ -96,3 +96,5 @@ export function closeEditor() {
       if (!visible && restoreTitle != null) document.title = restoreTitle
     })
 }
+
+

frontend/src/pagerite.js

@@ -4,7 +4,6 @@
 //
 // Also: scroll-reveal effects and code copy buttons. These need no
 // support from the article itself and are re-applied after each swap.
-import { showAuthIframe } from 'paskia'
 import { OverlayScrollbars } from "overlayscrollbars";
 import "overlayscrollbars/overlayscrollbars.css";
 
@@ -47,16 +46,28 @@ import "overlayscrollbars/overlayscrollbars.css";
   // /_api/settings endpoint: the same reverse proxy that gates /_api returns
   // 401/403 here, and a 200 means the permission is present.
   //
-  // When Paskia SSO is in use, 401/403 responses carry `auth.iframe`, which
-  // we use to open the login/profile dialogs inline instead of navigating
-  // away. A separate probe to /auth/api/settings tells us whether Paskia is
-  // available at all; if it isn't, we treat the site as dev/no-proxy and
-  // leave editing open.
+  // When Paskia SSO is in use (probed via /auth/api/settings), the banner
+  // corner gets a plain link to /auth/ — 🔑 log in for anonymous visitors,
+  // 🔐 profile when logged in. Normal navigation: Paskia does not support
+  // being iframed, and history.back() returns to the page as-is (the
+  // pageshow handler below re-probes auth to refresh the pens).
   let ssoAvailable = false;
   let isAdmin = false;
-  let loginIframeUrl = null;
   let editorMeta = null;
 
+  // Asset URLs for the on-demand bundles. Dev renders them as
+  // pagerite:* meta tags (Vite dev-server URLs); production inlines all
+  // page assets and carries the on-demand URLs in a JSON script instead.
+  const assets = (() => {
+    const el = document.getElementById("pagerite-assets");
+    if (el) return JSON.parse(el.textContent);
+    const map = {};
+    for (const m of document.querySelectorAll('meta[name^="pagerite:"]')) {
+      map[m.name] = m.content;
+    }
+    return map;
+  })();
+
   function makePen(mode) {
     const btn = document.createElement("button");
     btn.type = "button";
@@ -86,68 +97,51 @@ import "overlayscrollbars/overlayscrollbars.css";
     }
   }
 
-  function makeLoginButton(url) {
-    const btn = document.createElement("button");
-    btn.type = "button";
-    btn.className = "login-link";
-    btn.title = "log in";
-    btn.textContent = "🔑";
-    btn.addEventListener("click", async () => {
-      try {
-        await showAuthIframe(url);
-        // Successful login: refresh the auth UI (may now show edit pens).
-        setupAuth();
-      } catch {
-        // Cancelled or error: leave the button in place.
-      }
-    });
-    return btn;
-  }
-
-  function makeProfileButton() {
-    const btn = document.createElement("button");
-    btn.type = "button";
-    btn.className = "profile-link";
-    btn.title = "profile";
-    btn.textContent = "🔐";
-    btn.addEventListener("click", () => {
-      showAuthIframe("/auth/").catch(() => {});
-    });
-    return btn;
+  function makeAuthLink(admin) {
+    const a = document.createElement("a");
+    a.className = admin ? "profile-link" : "login-link";
+    a.href = "/auth/";
+    a.title = admin ? "profile" : "log in";
+    a.textContent = admin ? "\u{1F510}" : "\u{1F511}";
+    return a;
   }
 
   function renderAuthUi() {
     // Editing is open for admins and, as a dev/no-proxy fallback, when no
     // Paskia SSO is detected at all.
     const canEdit = isAdmin || !ssoAvailable;
+    // The analytics page is a read-only dashboard: editing pens and the side
+    // panel do not apply there. Login/logout links are still useful.
+    const onAnalytics = currentPath === "/_a";
     const banner = document.getElementById("page-banner");
     if (banner) {
       const old = banner.parentElement.querySelector(".editor-pens");
       if (old) old.remove();
       const pens = document.createElement("div");
       pens.className = "editor-pens";
-      if (canEdit) {
+      if (canEdit && !onAnalytics) {
         pens.append(makePen("banner"));
         pens.append(makePen("site"));
+        // Analytics viewer is now a normal page at /_a.
+        const a = document.createElement("a");
+        a.className = "edit-link analytics-link";
+        a.href = "/_a";
+        a.title = "analytics";
+        a.textContent = "📊";
+        pens.append(a);
       }
-      if (isAdmin && ssoAvailable) {
-        pens.append(makeProfileButton());
-      } else if (!isAdmin && ssoAvailable && loginIframeUrl) {
-        pens.append(makeLoginButton(loginIframeUrl));
-      } else if (!isAdmin && ssoAvailable) {
-        pens.append(makeProfileButton());
-      }
+      if (ssoAvailable) pens.append(makeAuthLink(isAdmin));
       banner.after(pens);
     }
-    if (canEdit) injectPagePen();
+    if (canEdit && !onAnalytics) injectPagePen();
   }
 
   async function setupAuth() {
-    const src = document.querySelector('meta[name="pagerite:editor-src"]')?.content;
-    if (!src) return;
+    const src = assets["pagerite:editor-src"];
+    if (!src) { pingEntryOnce(); return; }
     editorMeta = {
       src,
-      css: document.querySelector('meta[name="pagerite:editor-css"]')?.content,
+      css: assets["pagerite:editor-css"],
     };
 
     // Detect whether Paskia SSO is available on this site.
@@ -160,23 +154,42 @@ import "overlayscrollbars/overlayscrollbars.css";
 
     // Check whether the current session has pagerite:admin.
     isAdmin = false;
-    loginIframeUrl = null;
-    let status = 0;
     try {
-      const res = await fetch("/_api/settings");
-      status = res.status;
-      if (status === 401) {
-        const data = await res.json().catch(() => ({}));
-        loginIframeUrl = data.auth?.iframe || null;
-      }
+      isAdmin = (await fetch("/_api/settings")).status === 200;
     } catch {
       // No auth proxy / dev.
     }
-    if (status === 200) isAdmin = true;
+
+    if (isAdmin) {
+      // Teach the backend the site's public origin (used for absolute
+      // social/canonical URLs): unlike request headers, location.origin
+      // reflects the real scheme and host even behind reverse proxies.
+      fetch("/_api/site-url", {
+        method: "POST",
+        headers: { "content-type": "application/json" },
+        body: JSON.stringify({ url: location.origin }),
+      }).catch(() => {});
+      // Warm the cache with the editor bundle: the hashed asset is
+      // immutable, so preloading costs nothing and the pens then open
+      // instantly. The analytics page has no editor.
+      if (currentPath !== "/_a" && !import.meta.env.DEV) {
+        const preload = document.createElement("link");
+        preload.rel = "modulepreload";
+        preload.href = src;
+        document.head.append(preload);
+      }
+    }
 
     renderAuthUi();
+    pingEntryOnce();
   }
 
+  // Returning to the page via history back/forward may restore a cached
+  // copy whose auth UI predates a login/logout — re-probe and re-render.
+  addEventListener("pageshow", (ev) => {
+    if (ev.persisted) setupAuth();
+  });
+
   function runScripts(root) {
     // Scripts inserted via DOM swapping do not execute; re-create them.
     for (const old of root.querySelectorAll("script")) {
@@ -250,6 +263,7 @@ import "overlayscrollbars/overlayscrollbars.css";
     // buttons; re-add whichever auth UI is appropriate for this session.
     renderAuthUi();
     placeEditPen();
+    fitNav();
     // Multi-column layout only when there is enough text to justify it.
     // Split the body into columned segments: h1s, h2s and wide figures are
     // full-width separators and never go inside columns.
@@ -299,29 +313,37 @@ import "overlayscrollbars/overlayscrollbars.css";
     }
   }
 
-  // --- Preloading ------------------------------------------------------
-  // Warm the HTTP cache with all linked pages and their resources, so
-  // navigation (and the cube transition) is instant. Pages carry ETags,
-  // so re-running this after each navigation revalidates cheaply (304)
-  // and picks up changed content and images.
+  // --- Page cache / preloading ------------------------------------------
+  // Articles are deliberately NOT HTTP-cacheable, so speed comes from an
+  // in-memory cache instead: at load (and after each swap) every visible
+  // internal link is fetched exactly once, and navigation is served from
+  // memory with no fetch at all. Editor re-renders (swapdoc.loadPlain)
+  // announce their fresh copies via pagerite:page-fetched, keeping the
+  // cache in sync after edits. The current page is NOT preloaded: we just
+  // received it as the document (re-fetching would be redundant, and
+  // browser heuristics may send it without if-none-match, defeating the
+  // conditional request); it enters the cache when navigated to.
+  const pageCache = new Map(); // pathname -> HTML text
+  addEventListener("pagerite:page-fetched", (ev) => {
+    pageCache.set(new URL(ev.detail.url, location.href).pathname, ev.detail.html);
+  });
+
   function preload() {
     const urls = new Set();
-    for (const a of document.querySelectorAll('#nav a[href^="/"], #main a[href^="/"]')) {
+    for (const a of document.querySelectorAll(
+      '#nav a[href^="/"], #sidebar a[href^="/"], #main a[href^="/"]',
+    )) {
       urls.add(a.pathname);
     }
     for (const url of urls) {
-      if (url === location.pathname) continue;
-      fetch(url)
-        .then((r) => (r.ok ? r.text() : ""))
-        .then((html) => {
-          if (!html) return;
-          // Off-screen parse: load the page's images and other resources
-          const doc = new DOMParser().parseFromString(html, "text/html");
-          for (const img of doc.querySelectorAll("img")) {
-            const i = new Image();
-            i.src = img.src;
-          }
-        })
+      if (pageCache.has(url)) continue;
+      // x-pagerite-preload: idle cache warm-up, not a page view — the
+      // server excludes these GETs from analytics (the ping sent on actual
+      // navigation does the counting).
+      fetch(url, { headers: { "x-pagerite-preload": "1" } })
+        .then((r) => (r.ok && (r.headers.get("content-type") || "").includes("text/html")
+          ? r.text() : ""))
+        .then((html) => { if (html) pageCache.set(url, html); })
         .catch(() => {});
     }
   }
@@ -355,6 +377,162 @@ import "overlayscrollbars/overlayscrollbars.css";
     }, { passive: true });
   }
 
+  // --- Analytics pings ---------------------------------------------------
+  // Fire-and-forget POST /_a {fr, to, read}: on the initial page load
+  // (starts the visit — the server counts nothing from the document GET
+  // alone), for internal fetch-navigations, for external https exits, and
+  // on window close. ``read`` is the active time (ms) spent on ``fr``.
+  // Reading time pauses after 1 minute of inactivity and resumes on the
+  // next mouse/touch/scroll/keyboard event.
+  // Excluded: back/forward (popstate never pings), everything while the
+  // editor is open (body.editing — admin noise, not visits), and the
+  // analytics page itself (/_a), even though fetch-navigation treats it
+  // like a normal article.
+  // Admins (when SSO is actually in use — with no auth proxy "admin" is
+  // everyone's state) ping normally but with hide=1: the server then
+  // records nothing and scrubs any session the same browser accumulated
+  // before logging in, so admins never show up as visits or crawlers.
+  // See docs/analytics.md.
+  function ping(to, fr = currentPath, read = 0) {
+    if (document.body.classList.contains("editing")) return;
+    if ((to && to === "/_a") || fr === "/_a") return;
+    const hide = ssoAvailable && isAdmin ? 1 : 0;
+    const body = JSON.stringify({
+      fr, to, hide,
+      read: Math.max(0, Math.round(read / 1000)),
+    });
+    try {
+      fetch("/_a", {
+        method: "POST",
+        keepalive: true,
+        headers: { "content-type": "application/json" },
+        body,
+      });
+    } catch { /* analytics must never break navigation */ }
+  }
+
+  // Active reading time for the current page. The clock stops after 1 minute
+  // without activity and restarts on the next mouse/touch/scroll/keyboard
+  // event.
+  const INACTIVE_MS = 60_000;
+  let readStart = performance.now();
+  let readElapsed = 0;
+  let reading = true;
+  let readInactivityTimer = null;
+  let closePingedFor = null;
+
+  function markReadActivity() {
+    if (!reading) {
+      reading = true;
+      readStart = performance.now();
+    }
+    clearTimeout(readInactivityTimer);
+    readInactivityTimer = setTimeout(() => {
+      if (reading) {
+        readElapsed += performance.now() - readStart;
+        reading = false;
+      }
+    }, INACTIVE_MS);
+  }
+
+  function takeReadTime() {
+    if (reading) {
+      readElapsed += performance.now() - readStart;
+      readStart = performance.now();
+    }
+    const ms = Math.max(0, Math.round(readElapsed));
+    readElapsed = 0;
+    return ms;
+  }
+
+  function resetReadTime() {
+    readElapsed = 0;
+    reading = true;
+    readStart = performance.now();
+    clearTimeout(readInactivityTimer);
+  }
+
+  function sendClosePing() {
+    if (closePingedFor === currentPath) return;
+    const read = Math.max(0, Math.round(takeReadTime() / 1000));
+    if (read <= 0) return;
+    const hide = ssoAvailable && isAdmin ? 1 : 0;
+    const body = JSON.stringify({ fr: currentPath, hide, read });
+    const blob = new Blob([body], { type: "application/json" });
+    try {
+      if (navigator.sendBeacon) {
+        navigator.sendBeacon("/_a", blob);
+      } else {
+        fetch("/_a", {
+          method: "POST",
+          keepalive: true,
+          headers: { "content-type": "application/json" },
+          body,
+        });
+      }
+    } catch { /* analytics must never break navigation */ }
+    closePingedFor = currentPath;
+  }
+
+  for (const ev of ["mousemove", "mousedown", "touchstart", "touchmove", "scroll", "keydown"]) {
+    addEventListener(ev, markReadActivity, { passive: true });
+  }
+  addEventListener("pagehide", sendClosePing);
+
+  // The initial page load pings too — it is what starts the visit and
+  // counts the entry page view (the document GET alone records nothing).
+  // Sent once per load, after the auth probes so the admin gate applies;
+  // the pageshow re-probe must not ping again. Reloads are not visits:
+  // pinging them would double-count the view and log a self-transition.
+  let entryPinged = false;
+  function pingEntryOnce() {
+    if (entryPinged) return;
+    entryPinged = true;
+    const nav = performance.getEntriesByType?.("navigation")[0];
+    if (nav ? nav.type === "reload" : performance.navigation?.type === 1) return;
+    ping(currentPath);
+  }
+
+  // --- Analytics page mount/unmount --------------------------------------
+  // The analytics page is a normal page whose body is rendered by the server
+  // but whose content is a Vue app. In dev the entry module is imported from
+  // the Vite dev server on demand; in production it is inlined into the /_a
+  // page as script#pagerite-js-analytics, which a fetch-navigation swap does
+  // not execute — re-create the element so the fresh module auto-mounts on
+  // #analytics-app (see analytics-main.js). The module exposes its unmount
+  // as window.__pageriteAnalyticsUnmount.
+  function teardownAnalytics() {
+    // Remove even the server-rendered script element so a later return to
+    // /_a re-mounts from a fresh copy (the module has torn itself down).
+    document.getElementById("pagerite-js-analytics")?.remove();
+    window.__pageriteAnalyticsUnmount?.();
+    window.__pageriteAnalyticsUnmount = null;
+  }
+
+  async function mountAnalytics(doc) {
+    if (!doc.getElementById("analytics-app")) return;
+    // Already mounted: on a full /_a load the inline script has run.
+    if (document.getElementById("pagerite-js-analytics")) return;
+    const inline = doc.getElementById("pagerite-js-analytics");
+    if (inline) {
+      const s = document.createElement("script");
+      for (const a of inline.attributes) s.setAttribute(a.name, a.value);
+      s.textContent = inline.textContent;
+      document.body.append(s);
+      return;
+    }
+    try {
+      // Dev: the cached module auto-mounts only on its first evaluation,
+      // so call mount() explicitly for repeat visits (it no-ops when the
+      // app is already up).
+      const mod = await import(/* @vite-ignore */ assets["pagerite:analytics-src"]);
+      const container = document.getElementById("analytics-app");
+      if (container) mod.mount(container);
+    } catch (e) {
+      console.error("analytics mount failed:", e);
+    }
+  }
+
   // --- Fetch navigation ------------------------------------------------
   async function load(url, push = true, back = false) {
     // Navigating with the editor open closes it; unsaved edits are lost
@@ -362,22 +540,32 @@ import "overlayscrollbars/overlayscrollbars.css";
     if (document.body.classList.contains("editing")) {
       editorModule?.then((m) => m.closeEditor());
     }
+    teardownAnalytics();
     let doc;
     let finalUrl = url;
-    try {
-      const res = await fetch(url);
-      const type = res.headers.get("content-type") || "";
-      if (!res.ok || !type.includes("text/html")) throw new Error("not a page");
-      // Reflect any redirect the server issued.
-      if (res.redirected) finalUrl = res.url;
-      doc = new DOMParser().parseFromString(await res.text(), "text/html");
-    } catch {
-      location.href = url; // fall back to a normal navigation
-      return;
+    const cached = pageCache.get(new URL(url, location.href).pathname);
+    if (cached) {
+      doc = new DOMParser().parseFromString(cached, "text/html");
+    } else {
+      try {
+        const res = await fetch(url);
+        const type = res.headers.get("content-type") || "";
+        if (!res.ok || !type.includes("text/html")) throw new Error("not a page");
+        // Reflect any redirect the server issued.
+        if (res.redirected) finalUrl = res.url;
+        const html = await res.text();
+        // Populate the cache too, so returning here (back/forward, or a
+        // self-link in the nav) is served from memory.
+        pageCache.set(new URL(finalUrl, location.href).pathname, html);
+        doc = new DOMParser().parseFromString(html, "text/html");
+      } catch {
+        location.href = url; // fall back to a normal navigation
+        return false;
+      }
     }
     if (REGIONS.some((id) => !doc.getElementById(id))) {
       location.href = url;
-      return;
+      return false;
     }
     const doit = () => {
       for (const id of REGIONS) {
@@ -396,25 +584,48 @@ import "overlayscrollbars/overlayscrollbars.css";
       } else if (oldSidebar) {
         oldSidebar.remove();
       }
-      // Site-wide custom CSS lives in <head id="pagerite-user"> and must be
-      // kept in sync across fetch-navigations. It is kept last in <head>:
-      // in dev Vite injects the base stylesheet after the server-rendered
-      // tag, and equal-specificity :root rules are decided by order.
-      const oldUserStyle = document.getElementById("pagerite-user");
-      const newUserStyle = doc.getElementById("pagerite-user");
-      if (oldUserStyle && newUserStyle) {
-        oldUserStyle.textContent = newUserStyle.textContent;
-        document.head.appendChild(oldUserStyle);
-      } else if (newUserStyle) {
-        document.head.appendChild(document.importNode(newUserStyle, true));
-      } else if (oldUserStyle) {
-        oldUserStyle.remove();
+      // Stylesheets live in <head> with stable ids — links in dev, inline
+      // <style> elements in production — and must follow the swap: the
+      // analytics sheet exists on /_a only, and theme/banner/custom CSS
+      // may have changed since this page was loaded. Diff by id, keeping
+      // the fresh document's order; unchanged sheets keep their elements
+      // so their @keyframes are never torn down. Editor-injected sheets
+      // (data-pagerite, no id) and Vite's dev styles (no id) are left
+      // alone. Mirrors the head sync in swapdoc.js.
+      const sel = 'link[rel="stylesheet"][id], style[id]';
+      const fresh = [...doc.head.querySelectorAll(sel)];
+      const freshIds = new Set(fresh.map((el) => el.id));
+      for (const el of [...document.head.querySelectorAll(sel)]) {
+        if (!freshIds.has(el.id)) el.remove();
       }
+      let anchor = null;
+      for (const el of fresh) {
+        const cur = document.getElementById(el.id);
+        if (cur && cur.outerHTML === el.outerHTML) {
+          anchor = cur;
+          continue;
+        }
+        const imported = document.importNode(el, true);
+        if (cur) cur.replaceWith(imported);
+        else if (anchor) anchor.after(imported);
+        else {
+          const base = document.getElementById("pagerite-base");
+          if (base) base.after(imported);
+          else document.head.append(imported);
+        }
+        anchor = imported;
+      }
+      // Custom CSS must stay last: equal-specificity :root rules (font
+      // variables) are decided by order, and in dev Vite injects the base
+      // stylesheet after the server-rendered tag.
+      const userStyle = document.getElementById("pagerite-user");
+      if (userStyle) document.head.appendChild(userStyle);
       document.title = doc.title;
       // Banners may contain scripts (canvas etc.), content pages may too.
       runScripts(document.getElementById("page-banner"));
       runScripts(document.getElementById("main"));
       applyEffects();
+      mountAnalytics(doc);
     };
     // Rotating cube page transition (see the FRAGILE block in pagerite.css);
     // mirrored when navigating back through history. Navigation within the
@@ -434,6 +645,7 @@ import "overlayscrollbars/overlayscrollbars.css";
     currentPath = new URL(finalUrl, location.href).pathname;
     if (push) history.pushState(null, "", finalUrl);
     scrollTo(0, 0);
+    return true;
   }
 
   addEventListener("click", (ev) => {
@@ -471,16 +683,37 @@ import "overlayscrollbars/overlayscrollbars.css";
     const a = ev.target.closest("a[href]");
     if (!a || a.target || a.hasAttribute("download")) return;
     const url = new URL(a.href, location.href);
-    if (url.origin !== location.origin) return;
+    if (url.origin !== location.origin) {
+      // External link: the browser navigates; record the full https URL so
+      // different links to the same domain stay distinct in analytics.
+      if (url.protocol === "https:") {
+        closePingedFor = currentPath;
+        ping(url.href, currentPath, takeReadTime());
+      }
+      return;
+    }
     // Same-page anchor links (footnotes etc.): let the browser handle them
     if (url.pathname === location.pathname && url.hash) return;
-    // Machinery and auth endpoints are never fetch-navigated.
-    if (url.pathname.startsWith("/_") || url.pathname.startsWith("/auth")) return;
+    // Machinery and auth endpoints are never fetch-navigated, except the
+    // public analytics viewer page at /_a.
+    if ((url.pathname.startsWith("/_") && url.pathname !== "/_a")
+        || url.pathname.startsWith("/auth")) return;
     ev.preventDefault();
-    load(url);
+    // Capture the source now: load() updates currentPath before pinging.
+    const from = currentPath;
+    load(url).then((ok) => {
+      if (!ok) return;
+      closePingedFor = null;
+      ping(url.pathname, from, takeReadTime());
+      resetReadTime();
+    });
   });
 
-  addEventListener("popstate", () => load(location.href, false, true));
+  addEventListener("popstate", () => {
+    // Hash-only history entries are not navigations.
+    if (location.pathname === currentPath) return;
+    load(location.href, false, true);
+  });
 
   // --- Task-list checkboxes ------------------------------------------------
   // Checkboxes in the rendered article are live: toggling them edits the
@@ -544,6 +777,45 @@ import "overlayscrollbars/overlayscrollbars.css";
     fit();
   }
 
+  // --- Nav condense-to-fit -------------------------------------------------
+  // The top nav stays on one row even on too-narrow screens: first the link
+  // gaps shrink, then the nav's side padding, and only in extreme cases the
+  // font size. #nav is replaced on fetch-navigation swaps, so this re-runs
+  // from applyEffects (fresh elements each time); CSS keeps flex-wrap: wrap
+  // as the no-JS fallback.
+  function fitNav() {
+    const nav = document.getElementById("nav");
+    const ul = nav?.querySelector("ul");
+    if (!ul) return;
+    // Restore the themed defaults before measuring.
+    nav.style.fontSize = "";
+    nav.style.paddingInline = "";
+    ul.style.columnGap = "";
+    ul.style.flexWrap = "nowrap";
+    const overflow = () => ul.scrollWidth - ul.clientWidth;
+    if (overflow() <= 0) return;
+    // 1) shrink the gaps between items (down to a fifth of the themed gap)
+    const gap = parseFloat(getComputedStyle(ul).columnGap) || 0;
+    const joints = Math.max(ul.children.length - 1, 1);
+    if (gap > 0) {
+      ul.style.columnGap = `${Math.max(0.2 * gap, gap - overflow() / joints)}px`;
+    }
+    // 2) shrink the nav's side padding (down to 0.4x)
+    if (overflow() > 0) {
+      const pad = parseFloat(getComputedStyle(nav).paddingInlineStart) || 0;
+      nav.style.paddingInline = `${Math.max(0.4 * pad, pad - overflow() / 2)}px`;
+    }
+    // 3) shrink the font to fit what remains
+    if (overflow() > 0) {
+      const fs = parseFloat(getComputedStyle(nav).fontSize);
+      nav.style.fontSize = `${fs * ul.clientWidth / ul.scrollWidth}px`;
+    }
+  }
+
+  addEventListener("resize", fitNav);
+  document.fonts?.ready.then(fitNav);
+
   setupAuth();
   applyEffects();
+  mountAnalytics(document);
 })();

frontend/src/swapdoc.js

@@ -59,32 +59,39 @@ function swapRegions(doc) {
     curUserStyle.remove()
   }
   // Theme and other public stylesheets live in <head>, rendered with stable
-  // ids by the backend; sync them positionally so the custom CSS (rendered
-  // last) always keeps winning by order. Diff-based: unchanged sheets keep
-  // their elements, so their @keyframes are never torn down (re-creating
-  // keyframes would replay the editor's slide-in animation).
-  const freshLinks = [...doc.head.querySelectorAll('link[rel="stylesheet"]')]
-  const freshIds = new Set(freshLinks.map((l) => l.id))
-  for (const link of [...document.head.querySelectorAll('link[rel="stylesheet"]')]) {
-    if (!link.dataset.pagerite && !freshIds.has(link.id)) link.remove()
+  // ids by the backend (links in dev, inline <style> elements in prod);
+  // sync them positionally so the custom CSS (rendered last) always keeps
+  // winning by order. Diff-based: unchanged sheets keep their elements, so
+  // their @keyframes are never torn down (re-creating keyframes would
+  // replay the editor's slide-in animation).
+  const sel = 'link[rel="stylesheet"][id], style[id]'
+  const freshEls = [...doc.head.querySelectorAll(sel)]
+  const freshIds = new Set(freshEls.map((el) => el.id))
+  for (const el of [...document.head.querySelectorAll(sel)]) {
+    if (!freshIds.has(el.id)) el.remove()
   }
   // Insert missing sheets in the fresh document's order, each right after
   // its predecessor's element. The first sheet rendered is always the base
-  // CSS, so its link doubles as the fallback anchor when nothing matched yet
-  // (e.g. no theme was selected before and the position is otherwise lost).
+  // CSS, so its element doubles as the fallback anchor when nothing matched
+  // yet (e.g. no theme was selected before and the position is otherwise
+  // lost).
   let anchor = null
-  for (const link of freshLinks) {
-    const cur = link.id && document.getElementById(link.id)
-    if (cur && cur.href === link.href) {
+  for (const el of freshEls) {
+    const cur = el.id && document.getElementById(el.id)
+    if (cur && cur.outerHTML === el.outerHTML) {
       anchor = cur
       continue
     }
-    const el = document.importNode(link, true)
-    // Same id, new URL (theme switch): replace in place, keeping position.
-    if (cur) cur.replaceWith(el)
-    else if (anchor) anchor.after(el)
-    else document.getElementById('pagerite-base')?.after(el) ?? document.head.append(el)
-    anchor = el
+    const imported = document.importNode(el, true)
+    // Same id, new content (theme switch): replace in place, keeping position.
+    if (cur) cur.replaceWith(imported)
+    else if (anchor) anchor.after(imported)
+    else {
+      const base = document.getElementById('pagerite-base')
+      if (base) base.after(imported)
+      else document.head.append(imported)
+    }
+    anchor = imported
   }
   // The editor keeps its own title while open; only inherit the server title
   // when navigating outside the editor (e.g. fetch-navigation swaps).
@@ -100,18 +107,22 @@ function swapRegions(doc) {
 export async function loadPlain(p) {
   let doc
   let finalUrl = `/${p}`
+  let html
   try {
     const res = await fetch(finalUrl)
     const type = res.headers.get('content-type') || ''
     if (!type.includes('text/html')) return null
     if (res.redirected) finalUrl = res.url
-    doc = new DOMParser().parseFromString(await res.text(), 'text/html')
+    html = await res.text()
+    doc = new DOMParser().parseFromString(html, 'text/html')
   } catch { return null }
   if (!doc.getElementById('main')) return null
   swapRegions(doc)
   history.replaceState(null, '', finalUrl)
   runScripts(document.getElementById('page-banner'))
   runScripts(document.getElementById('main'))
+  // Keep pagerite.js's in-memory page cache in sync with the fresh copy.
+  dispatchEvent(new CustomEvent('pagerite:page-fetched', { detail: { url: finalUrl, html } }))
   dispatchEvent(new CustomEvent('pagerite:preview')) // re-inject + re-tuck the edit pens
   return finalUrl
 }

frontend/vite-plugin-fastapi.js

@@ -11,7 +11,7 @@
  */
 
 export default function fastapiVue({ paths = ["/api"] } = {}) {
-  const backendUrl = process.env.PAGERITE_BACKEND_URL || "http://localhost:3200"
+  const backendUrl = process.env.PAGERITE_BACKEND_URL || "http://localhost:8210"
 
   // Build proxy configuration for each path
   const proxy = {}

frontend/vite.config.js

@@ -7,15 +7,15 @@ import vueDevTools from 'vite-plugin-vue-devtools'
 
 const backendUrl = process.env.PAGERITE_BACKEND_URL || 'http://localhost:3200'
 
-// Proxy content pages (/slug, /path/to/slug) to the FastAPI backend in dev.
-// Excludes Vite internals (/@..., /src, /node_modules, /__...) and the
-// backend's /_ prefix. /_api and /_f are handled by the fastapi-vue plugin.
-const CONTENT_PROXY = '^\\/(?!_|@|src|node_modules|__)(?:[^./?]+(?:\\/[^./?]+)*)?(?:\\?.*)?$'
+// Proxy everything except Vite's own dev-time paths and the backend machinery
+// to the FastAPI backend in dev. /_api, /_f, /_themes and /_a are handled by
+// the fastapi-vue plugin, and /@..., /src, /node_modules, /__... stay with Vite.
+const CONTENT_PROXY = '^(?!/_|/@|/src|/node_modules|/__).*$'
 
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [
-    fastapiVue({ paths: ["/_api", "/_f", "/_themes"] }),
+    fastapiVue({ paths: ["/_api", "/_f", "/_themes", "/_a"] }),
     vue(),
     vueDevTools(),
   ],
@@ -39,6 +39,7 @@ export default defineConfig({
       input: {
         main: fileURLToPath(new URL('./src/main.js', import.meta.url)),
         pagerite: fileURLToPath(new URL('./src/pagerite.js', import.meta.url)),
+        analytics: fileURLToPath(new URL('./src/analytics-main.js', import.meta.url)),
         // Only the base CSS is built; theme/banner-design stylesheets live
         // in pagerite/themes/{name}/ and are served by the backend as-is.
         pagerite_base: fileURLToPath(new URL('./src/assets/pagerite.css', import.meta.url)),

pagerite/__main__.py

@@ -1,14 +1,74 @@
-# auto-upgrade@fastapi-vue-setup - remove this if you modify this file
 """Command-line entry point for running the backend server."""
 
 import argparse
+import gzip
 import os
+import sys
+from datetime import date
+from pathlib import Path
 
+import httpx
 from fastapi_vue import server
 
-DEFAULT_PORT = 3100
+DEFAULT_PORT = 8100
 DEVMODE = os.getenv("PAGERITE_DEV") == "1"
 
+# Repository root (pagerite/__main__.py -> ..), where the MMDB lives.
+_REPO_ROOT = Path(__file__).resolve().parent.parent
+
+DBIP_URL = "https://download.db-ip.com/free/dbip-city-lite-{month}.mmdb.gz"
+
+
+def _download_dbip() -> None:
+    """Download the latest dbip-city-lite MMDB if ours is missing or older."""
+    today = date.today()
+    months = [f"{today:%Y-%m}"]
+    # The current month's file may not be published yet; fall back to last month.
+    prev = (today.replace(day=1) - date.resolution).replace(day=1)
+    months.append(f"{prev:%Y-%m}")
+
+    existing = sorted(
+        p.stem.removeprefix("dbip-city-lite-").removesuffix(".mmdb")
+        for p in _REPO_ROOT.glob("dbip-city-lite-*.mmdb*")
+    )
+    if existing and existing[-1] >= months[0]:
+        print(f"pagerite: DB-IP database is current ({existing[-1]}), skipping download")
+        return
+
+    for month in months:
+        url = DBIP_URL.format(month=month)
+        target = _REPO_ROOT / f"dbip-city-lite-{month}.mmdb.gz"
+        tmp = target.with_suffix(".mmdb.gz.tmp")
+        print(f"pagerite: downloading {url}")
+        try:
+            with httpx.stream("GET", url, follow_redirects=True, timeout=120) as r:
+                if r.status_code == 404:
+                    continue
+                r.raise_for_status()
+                with open(tmp, "wb") as f:
+                    for chunk in r.iter_bytes():
+                        f.write(chunk)
+        except httpx.HTTPError as e:
+            print(f"pagerite: DB-IP download failed: {e}", file=sys.stderr)
+            tmp.unlink(missing_ok=True)
+            continue
+        # Verify it is actually gzip data before installing it.
+        try:
+            with gzip.open(tmp, "rb") as f:
+                f.read(1)
+        except OSError:
+            print(f"pagerite: DB-IP download for {month} was not valid gzip", file=sys.stderr)
+            tmp.unlink(missing_ok=True)
+            continue
+        os.replace(tmp, target)
+        # Drop older databases so the app never picks up a stale one.
+        for old in _REPO_ROOT.glob("dbip-city-lite-*.mmdb*"):
+            if old.name != target.name:
+                old.unlink()
+        print(f"pagerite: DB-IP database updated to {target.name}")
+        return
+    print("pagerite: could not download a DB-IP database", file=sys.stderr)
+
 
 def main() -> None:
     """Run the backend server with optional arguments."""
@@ -19,7 +79,14 @@ def main() -> None:
         action="append",
         help=(f"Endpoint (default: localhost:{DEFAULT_PORT})."),
     )
+    parser.add_argument(
+        "--dbip",
+        action="store_true",
+        help="Download/update the DB-IP city lite database before starting.",
+    )
     args = parser.parse_args()
+    if args.dbip:
+        _download_dbip()
     dev = {"reload": True, "reload_dirs": ["pagerite"]} if DEVMODE else {}
     server.run(
         "pagerite.app:app",

pagerite/analytics.py

@@ -0,0 +1,755 @@
+"""Server-side visit analytics (collection only; see docs/analytics.md).
+
+Events come from navigation pings POSTed to /_a by pagerite.js: the first
+ping on page load starts a visit, later pings extend it, and pings with no
+known session start a fresh one (missing data, not dropped). The document
+GET handler stashes the entry referer (external https origin) and any
+utm_* query parameters in in-memory IP tables, consumed when the ping
+starts the visit; nothing is counted without a ping (plain bots that only
+fetch documents end up in the crawler list).  JS-running crawlers
+(Googlebot, GoogleOther, Applebot, ...) do ping, but their UA gives them
+away (``_is_bot_ua``) and their pings are ignored, so they land in the
+crawler list too.  Idle-time link preloads from pagerite.js carry an
+``x-pagerite-preload`` header and are not tracked at all — the ping sent
+when the user actually navigates does the counting.
+Admin clients ping with ``hide=1``, which records nothing and removes any
+visit the session accumulated before logging in.  Scanner telltale 404s
+(dotpaths, *.php) classify the source IP as abuse; its hits — including
+earlier crawler hits — are moved to the abuse list, which the viewer
+groups by IP with full request paths.  Client metadata (IP, UA, language,
+country/city, host) is stored once per unique client hash and referenced
+from visits, crawler hits and abuse hits.  The session map is in-memory
+only.
+
+Data is a msgspec Struct JSON-dumped to its own file (not the kanta db),
+rewritten atomically on every recorded event.
+"""
+
+import ipaddress
+import os
+import re
+import tempfile
+from collections.abc import Callable
+from contextlib import suppress
+from datetime import UTC, datetime, timedelta
+from pathlib import Path
+from urllib.parse import parse_qs, urlparse
+
+import blake3
+import msgspec
+from ua_parser import parse
+
+
+def _compact_user_agent(ua: str) -> str:
+    """Format a User-Agent string into a compact display form.
+
+    Returns the original UA when the parser cannot identify the browser/OS.
+    """
+    if not ua or not ua.strip() or ua == "-":
+        return ""
+    r = parse(ua)
+    browser = r.user_agent.family if r.user_agent else None
+    ver = r.user_agent.major if r.user_agent else ""
+    os_name = r.os.family if r.os else None
+    dev = r.device.family if r.device else None
+    if browser in (None, "Other") and os_name in (None, "Other"):
+        return ua
+    if browser and browser != "Other":
+        browser = browser.split()[0]
+    else:
+        browser = ""
+    os_name = os_name if os_name and os_name != "Other" else ""
+    if dev in (None, "Other") or dev == browser:
+        dev = ""
+    parts = [f"{browser}/{ver}" if browser else "", os_name, dev]
+    return " ".join(p for p in parts if p).strip()
+
+
+class Client(msgspec.Struct, omit_defaults=True):
+    """Client metadata shared by visits, crawler hits and abuse hits.
+
+    Identified by a 6-byte blake3 hash of the IPv4 address or IPv6 /64
+    network, the full User-Agent string and the extracted language tag.
+    Country/city/host are filled in asynchronously after the first event.
+    """
+
+    #: Visitor IP address (first X-Forwarded-For hop or direct peer).
+    ip: str = ""
+    #: Reverse-DNS host name for ``ip`` when resolvable, else "".
+    host: str = ""
+    #: First Accept-Language tag, lowercased (e.g. "en-us").
+    lang: str = ""
+    #: Two-letter country code from the DB-IP geoip lookup, or "".
+    country: str = ""
+    #: City name from the DB-IP geoip lookup, or "".
+    city: str = ""
+    #: Raw User-Agent header.
+    ua: str = ""
+    #: Compact display form of ``ua`` (browser/OS/device) when parsable.
+    ua_pretty: str = ""
+
+
+class Visit(msgspec.Struct, omit_defaults=True):
+    """One visit: the initial-load data plus everything seen afterwards.
+
+    ``trail`` holds page paths and external exit URLs in first-seen
+    order; re-visiting an already seen page does not append. The entry
+    page itself is in ``entry``, not in the trail.  Client metadata is
+    held in ``Analytics.clients`` keyed by ``client``.
+    """
+
+    start: datetime
+    entry: str
+    #: External https origin of the initial load, "" for direct visits.
+    referer: str = ""
+    #: 6-byte blake3 hash referencing ``Analytics.clients``.
+    client: bytes = b""
+    trail: list[str] = []
+    #: UTM query parameters from the landing URL, keyed by parameter name.
+    utm: dict[str, str] = {}
+    #: Active reading time per path (seconds), keyed by path.
+    read: dict[str, int] = {}
+
+
+class CrawlerHit(msgspec.Struct, omit_defaults=True):
+    """A document GET that was never followed by an analytics ping.
+
+    Client metadata is held in ``Analytics.clients`` keyed by ``client``.
+    """
+
+    start: datetime
+    entry: str
+    #: 6-byte blake3 hash referencing ``Analytics.clients``.
+    client: bytes = b""
+    #: External https origin of the initial load, "" for direct/none.
+    referer: str = ""
+    #: Raw query string of the landing URL (UTM tags can be parsed from it).
+    query: str = ""
+
+
+class AbuseHit(msgspec.Struct, omit_defaults=True):
+    """A request from an IP classified as a scanner/abuser.
+
+    Unlike crawler hits the full request path (query string included) is
+    kept: the interesting part is exactly which paths were probed.
+    ``flag`` marks the path that triggered classification; ``is_404``
+    distinguishes 404 responses from document GETs made by the abuser.
+    Client metadata is held in ``Analytics.clients`` keyed by ``client``.
+    """
+
+    start: datetime
+    #: Full request path including the query string (e.g. "/.env?x=1").
+    path: str
+    #: 6-byte blake3 hash referencing ``Analytics.clients``.
+    client: bytes = b""
+    #: True when this path triggered abuse classification (telltale path
+    #: or the 404 that crossed the threshold).
+    flag: bool = False
+    #: True for 404 responses; false for document GETs from the abuser.
+    is_404: bool = False
+
+
+class Analytics(msgspec.Struct, omit_defaults=True):
+    """Root of the analytics JSON file. Append-only by design: old data is
+    dropped by deleting list entries / bucket keys."""
+
+    visits: list[Visit] = []
+    #: Document GETs that never produced a ping, treated as crawler/bot hits.
+    crawlers: list[CrawlerHit] = []
+    #: Requests from abusive IPs (see AbuseHit), grouped by IP in the viewer.
+    abuse: list[AbuseHit] = []
+    #: Client metadata keyed by 6-byte blake3 hash.
+    clients: dict[bytes, Client] = {}
+    #: IPs classified as scanners/abusers (keys; values always True).
+    abuse_ips: dict[str, bool] = {}
+    #: Page transitions per 5-minute bucket (sparse):
+    #: from -> to -> bucket ISO -> count. ``from`` is the referer origin or
+    #: "(direct)" for initial loads, a page path for pings.
+    transitions: dict[str, dict[str, dict[str, int]]] = {}
+    #: Page views per 5-minute bucket: path -> bucket ISO -> count (sparse).
+    views: dict[str, dict[str, int]] = {}
+    #: New visits per 5-minute bucket: bucket ISO -> count (sparse).
+    site_visits: dict[str, int] = {}
+
+
+def _bucket(now: datetime) -> str:
+    """Start of the 5-minute interval containing ``now``, as ISO string."""
+    return now.replace(minute=now.minute // 5 * 5, second=0, microsecond=0).isoformat()
+
+
+def _origin(url: str) -> str | None:
+    """The origin part of an https URL (scheme://host[:port]), else None."""
+    try:
+        parsed = urlparse(url)
+    except ValueError:
+        return None
+    if parsed.scheme != "https" or not parsed.netloc:
+        return None
+    return f"https://{parsed.netloc}"
+
+
+def _external_target(url: str) -> str | None:
+    """A valid https URL (origin or full page), else None."""
+    try:
+        parsed = urlparse(url)
+    except ValueError:
+        return None
+    if parsed.scheme != "https" or not parsed.netloc:
+        return None
+    return url
+
+
+_SEGMENT = re.compile(r"[a-z0-9][a-z0-9_-]*")
+
+
+def _internal_path(to: str) -> str | None:
+    """A valid internal page path ("/" or slug segments), else None."""
+    path = to.split("?")[0].split("#")[0].strip("/")
+    if not path:
+        return "/"
+    if all(_SEGMENT.fullmatch(seg) for seg in path.split("/")):
+        return f"/{path}"
+    return None
+
+
+def _parse_accept_language(value: str) -> tuple[str, str]:
+    """First Accept-Language tag and the region/country subtag if present.
+
+    ``en-US, fr;q=0.9`` -> ("en-us", "US").  Wildcards and missing regions
+    produce an empty country.  The region is intentionally approximate:
+    it reflects the browser's language preference, not geo-location.
+    """
+    if not value:
+        return "", ""
+    tag = value.split(",")[0].split(";")[0].strip()
+    if not tag or tag == "*":
+        return "", ""
+    lang = tag.lower()
+    country = ""
+    # Region subtags follow the initial language tag (en-US, zh-Hans-CN).
+    # A bare two-letter tag such as "fr" is a language code, not a region.
+    for part in reversed(tag.split("-")[1:]):
+        if len(part) == 2 and part.isalpha():
+            country = part.upper()
+            break
+    return lang, country
+
+
+def _utm_tags(query: str) -> dict[str, str]:
+    """UTM parameters from a query string, keeping only the first value."""
+    if not query:
+        return {}
+    parsed = parse_qs(query, keep_blank_values=True)
+    return {k: v[0] for k, v in parsed.items() if k.startswith("utm_")}
+
+
+_CRAWLER_TIMEOUT = timedelta(seconds=10)
+
+#: UAs of JS-running crawlers, which would register as visitors on their
+#: ping.  Anything calling itself a "bot" matches; known crawlers without
+#: that token (GoogleOther) are listed as extra alternates.  No source
+#: verification: a spoofed bot UA just lands in the crawler list, and
+#: scanners that probe telltale paths are caught by the abuse rules anyway.
+_BOT_UA = re.compile(r"bot|googleother", re.IGNORECASE)
+
+
+def _is_bot_ua(ua: str) -> bool:
+    """True when the UA claims a crawler identity (Googlebot, Applebot, ...)."""
+    return bool(_BOT_UA.search(ua))
+
+#: Plain-404 count per IP that classifies it as abuse even without a
+#: telltale path hit.
+_ABUSE_404_THRESHOLD = 10
+
+#: Paths that instantly classify an IP as abuse when they 404: any segment
+#: starting with a dot ("/.env", "/.git/config") or ending in ".php".
+_ABUSE_PATH = re.compile(r"(^|/)\.|\.php$", re.IGNORECASE)
+
+
+def _is_abuse_path(path: str) -> bool:
+    """Telltale scanner path: dot segment or *.php."""
+    return bool(_ABUSE_PATH.search(path.split("?")[0]))
+
+
+def _network_ip(ip: str) -> str:
+    """IPv4 address unchanged, IPv6 collapsed to its /64 network address.
+
+    We hash the network rather than the full address so that clients in the
+    same /64 (a typical end-user allocation) are treated as one visitor.
+    """
+    if not ip:
+        return ip
+    try:
+        addr = ipaddress.ip_address(ip)
+    except ValueError:
+        return ip
+    if isinstance(addr, ipaddress.IPv6Address):
+        return str(ipaddress.IPv6Network(f"{ip}/64", strict=False).network_address)
+    return ip
+
+
+def _client_hash(ip: str, ua: str, lang: str) -> bytes:
+    """6-byte blake3 digest identifying a visitor/client tuple.
+
+    The key is the prettified IP (IPv6 /64), the raw UA string and the
+    extracted language tag, separated by null bytes.
+    """
+    return blake3.blake3(
+        f"{_network_ip(ip)}\0{ua}\0{lang}".encode()
+    ).digest()[:6]
+
+
+class Store:
+    """In-memory analytics data plus the client-hash -> visit session map."""
+
+    def __init__(self, path: Path) -> None:
+        self.path = path
+        self.data = Analytics()
+        if path.exists():
+            try:
+                self.data = msgspec.json.decode(path.read_bytes(), type=Analytics)
+            except msgspec.DecodeError, OSError:
+                pass  # legacy schema / corrupt or unreadable file: start fresh
+        #: client hash -> index of the current visit in data.visits
+        self.sessions: dict[bytes, int] = {}
+        #: ip -> external https origin of the latest document GET carrying
+        #: one, stashed for the visit the client's initial ping starts.
+        #: Internal or absent referers never touch the table.
+        self.pending_referers: dict[str, str] = {}
+        #: ip -> utm_* query parameters from the latest document GET that
+        #: carried any, stashed for the visit the client's initial ping starts.
+        #: Only non-empty sets are stored, so a later parameter-less page
+        #: does not overwrite an earlier tagged landing URL.
+        self.pending_utms: dict[str, dict[str, str]] = {}
+        #: Document GETs that have not yet been matched by a ping.  Kept
+        #: in RAM only; expired entries are written to ``data.crawlers``.
+        self.pending_crawlers: list[CrawlerHit] = []
+        #: ip -> number of plain (non-telltale) 404s seen, in RAM only;
+        #: reaching ``_ABUSE_404_THRESHOLD`` classifies the IP as abuse.
+        self.not_found_counts: dict[str, int] = {}
+        #: Callables to notify when persisted data changes.  Registered by the
+        #: analytics WebSocket broadcaster.
+        self._on_change: list[Callable[[], None]] = []
+
+    def subscribe(self, callback: Callable[[], None]) -> None:
+        """Register a callback to be called after every persisted change."""
+        if callback not in self._on_change:
+            self._on_change.append(callback)
+
+    def unsubscribe(self, callback: Callable[[], None]) -> None:
+        """Remove a previously registered change callback."""
+        with suppress(ValueError):
+            self._on_change.remove(callback)
+
+    def _notify(self) -> None:
+        for callback in self._on_change:
+            callback()
+
+    def _save(self) -> None:
+        """Rewrite the JSON file atomically (temp file + rename)."""
+        try:
+            fd, tmp = tempfile.mkstemp(
+                dir=self.path.parent, prefix=self.path.name, suffix=".tmp"
+            )
+            with os.fdopen(fd, "wb") as f:
+                f.write(msgspec.json.encode(self.data))
+            os.replace(tmp, self.path)
+        except OSError:
+            pass  # analytics must never break page serving
+        else:
+            self._notify()
+
+    def _flush_crawlers(self, now: datetime | None = None) -> list[bytes]:
+        """Move expired pending crawler hits into persistent ``data.crawlers``.
+
+        Returns the client hashes of the newly flushed hits so callers can
+        schedule async enrichment.
+        """
+        if not self.pending_crawlers:
+            return []
+        now = now or datetime.now(UTC)
+        cutoff = now - _CRAWLER_TIMEOUT
+        expired: list[CrawlerHit] = []
+        remaining: list[CrawlerHit] = []
+        for hit in self.pending_crawlers:
+            (expired if hit.start <= cutoff else remaining).append(hit)
+        if not expired:
+            return []
+        self.pending_crawlers = remaining
+        self.data.crawlers.extend(expired)
+        self._save()
+        return [hit.client for hit in expired]
+
+    def _count(self, table: dict[str, int], key: str) -> None:
+        table[key] = table.get(key, 0) + 1
+
+    def _count_transition(self, fr: str, to: str, now: datetime) -> None:
+        """Count one transition in its 5-minute bucket (sparse matrix)."""
+        buckets = self.data.transitions.setdefault(fr, {}).setdefault(to, {})
+        self._count(buckets, _bucket(now))
+
+    def _uncount(self, table: dict[str, int], key: str) -> None:
+        """Reverse one ``_count``: decrement and drop empty keys."""
+        if key in table:
+            table[key] -= 1
+            if table[key] <= 0:
+                del table[key]
+
+    def _remove_visit(self, index: int) -> None:
+        """Delete a visit and reverse the counts its creation recorded.
+
+        Used when a known visitor turns out to be an admin (hide=1 ping):
+        the session is scrubbed from the stats.  Views/transitions logged
+        by later pings inside the visit lack per-event timestamps and are
+        left as-is.
+        """
+        visit = self.data.visits[index]
+        bucket = _bucket(visit.start)
+        self._uncount(self.data.site_visits, bucket)
+        views = self.data.views.get(visit.entry)
+        if views is not None:
+            self._uncount(views, bucket)
+            if not views:
+                del self.data.views[visit.entry]
+        fr_map = self.data.transitions.get(visit.referer or "(direct)")
+        if fr_map is not None:
+            buckets = fr_map.get(visit.entry)
+            if buckets is not None:
+                self._uncount(buckets, bucket)
+                if not buckets:
+                    del fr_map[visit.entry]
+            if not fr_map:
+                del self.data.transitions[visit.referer or "(direct)"]
+        del self.data.visits[index]
+        # Sessions store list indices; shift the ones past the removed visit.
+        for key, i in list(self.sessions.items()):
+            if i > index:
+                self.sessions[key] = i - 1
+
+    def _client_ip(self, client_hash: bytes) -> str:
+        """Return the IP stored for ``client_hash``, or "" if missing."""
+        client = self.data.clients.get(client_hash)
+        return client.ip if client else ""
+
+    def _ensure_client(
+        self,
+        ip: str,
+        ua: str,
+        lang: str,
+        *,
+        country: str = "",
+    ) -> bytes:
+        """Get or create a ``Client`` record; return its 6-byte hash."""
+        h = _client_hash(ip, ua, lang)
+        if h not in self.data.clients:
+            self.data.clients[h] = Client(
+                ip=ip,
+                ua=ua,
+                ua_pretty=_compact_user_agent(ua),
+                lang=lang,
+                country=country,
+            )
+            self._save()
+        return h
+
+    def enrich_client(
+        self,
+        client_hash: bytes,
+        *,
+        host: str = "",
+        country: str = "",
+        city: str = "",
+    ) -> None:
+        """Fill in host/geoip fields on a client record after async lookups."""
+        client = self.data.clients.get(client_hash)
+        if client is None:
+            return
+        changed = False
+        if host and not client.host:
+            client.host = host
+            changed = True
+        if country:
+            client.country = country
+            changed = True
+        if city:
+            client.city = city
+            changed = True
+        if changed:
+            self._save()
+
+    def _abuse_hit(
+        self,
+        client_hash: bytes,
+        path: str,
+        start: datetime | None = None,
+        *,
+        flag: bool = False,
+        is_404: bool = False,
+    ) -> None:
+        """Append one abuse hit referencing a client by hash."""
+        self.data.abuse.append(
+            AbuseHit(
+                start=start or datetime.now(UTC),
+                path=path,
+                client=client_hash,
+                flag=flag,
+                is_404=is_404,
+            )
+        )
+
+    def classify_abuse(
+        self,
+        ip: str,
+        client_hash: bytes,
+        path: str,
+        *,
+        flag: bool = False,
+        is_404: bool = False,
+    ) -> None:
+        """Classify an IP as a scanner/abuser and record the triggering hit.
+
+        All earlier crawler hits from the same IP (persisted and pending)
+        are moved to the abuse list — a random-UA scanner must not pollute
+        the crawler stats of the legitimate bots it impersonates.
+        """
+        if ip not in self.data.abuse_ips:
+            self.data.abuse_ips[ip] = True
+            moved = [h for h in self.data.crawlers if self._client_ip(h.client) == ip]
+            if moved:
+                self.data.crawlers = [h for h in self.data.crawlers if self._client_ip(h.client) != ip]
+                for h in moved:
+                    self._abuse_hit(
+                        h.client,
+                        h.entry + (f"?{h.query}" if h.query else ""),
+                        start=h.start,
+                    )
+            pending = [h for h in self.pending_crawlers if self._client_ip(h.client) == ip]
+            if pending:
+                self.pending_crawlers = [h for h in self.pending_crawlers if self._client_ip(h.client) != ip]
+                for h in pending:
+                    self._abuse_hit(
+                        h.client,
+                        h.entry + (f"?{h.query}" if h.query else ""),
+                        start=h.start,
+                    )
+        self._abuse_hit(client_hash, path, flag=flag, is_404=is_404)
+        self._save()
+
+    def track_404(
+        self,
+        ip: str,
+        ua: str,
+        path: str,
+        accept_language: str = "",
+    ) -> bytes:
+        """Record a 404 response for ``path`` (full path, query included).
+
+        A telltale path (dot segment or *.php) classifies the IP as abuse
+        immediately; enough plain 404s from one IP do too.  Hits from
+        already-classified IPs go straight to the abuse list.
+
+        Returns the client hash so callers can schedule async enrichment.
+        """
+        lang, country = _parse_accept_language(accept_language)
+        client_hash = self._ensure_client(ip, ua, lang, country=country)
+        if ip in self.data.abuse_ips:
+            self._abuse_hit(client_hash, path, flag=_is_abuse_path(path), is_404=True)
+            self._save()
+            return client_hash
+        if _is_abuse_path(path):
+            self.classify_abuse(ip, client_hash, path, flag=True, is_404=True)
+            return client_hash
+        self.not_found_counts[ip] = self.not_found_counts.get(ip, 0) + 1
+        if self.not_found_counts[ip] >= _ABUSE_404_THRESHOLD:
+            self.classify_abuse(ip, client_hash, path, flag=True, is_404=True)
+            return client_hash
+        return client_hash
+
+    def _new_visit(
+        self,
+        entry: str,
+        referer: str,
+        client_hash: bytes,
+        utm: dict[str, str] | None = None,
+    ) -> Visit:
+        now = datetime.now(UTC)
+        visit = Visit(
+            start=now,
+            entry=entry,
+            referer=referer,
+            client=client_hash,
+            utm=utm or {},
+        )
+        self.data.visits.append(visit)
+        self.sessions[client_hash] = len(self.data.visits) - 1
+        self._count(self.data.site_visits, _bucket(now))
+        self._count(self.data.views.setdefault(entry, {}), _bucket(now))
+        self._count_transition(referer or "(direct)", entry, now)
+        return visit
+
+    def track_entry(
+        self,
+        referer: str,
+        own_origin: str,
+        ip: str,
+        ua: str,
+        full_path: str,
+        accept_language: str = "",
+    ) -> list[bytes]:
+        """Stash the entry referer/UTM tags and queue a pending crawler hit.
+
+        Nothing is counted here — the client's initial /_a ping starts the
+        visit (only non-admin clients ping). Only a cross-origin https
+        referer updates the table; an internal or absent referer leaves any
+        stashed origin untouched.  UTM parameters are kept only when the
+        landing URL actually carries them, so a subsequent parameter-less page
+        does not erase an earlier tagged landing.
+
+        Every document GET is also queued as a pending crawler hit.  If a ping
+        from the same client arrives within ``_CRAWLER_TIMEOUT``, the hit is
+        discarded; otherwise it is flushed to ``data.crawlers``.  The
+        Accept-Language header is stored on the client record immediately;
+        host/geoip are filled in later by async enrichment.
+
+        GETs from IPs already classified as abuse are recorded as abuse hits
+        with the full request path (query string included).
+
+        Returns the client hashes of any hits flushed to persistent storage,
+        so callers can schedule async enrichment.
+        """
+        entry = full_path.split("?")[0]
+        query = full_path.split("?", 1)[1] if "?" in full_path else ""
+        lang, country = _parse_accept_language(accept_language)
+        client_hash = self._ensure_client(ip, ua, lang, country=country)
+        if ip in self.data.abuse_ips:
+            flushed = self._flush_crawlers()
+            self._abuse_hit(client_hash, full_path, is_404=False, flag=False)
+            self._save()
+            return flushed
+        now = datetime.now(UTC)
+        flushed = self._flush_crawlers(now)
+        if referer:
+            origin = _origin(referer)
+            if origin is not None and origin != own_origin:
+                self.pending_referers[ip] = origin
+        utms = _utm_tags(query)
+        if utms:
+            self.pending_utms[ip] = utms
+        self.pending_crawlers.append(
+            CrawlerHit(
+                start=now,
+                entry=entry,
+                client=client_hash,
+                referer=self.pending_referers.get(ip, ""),
+                query=query,
+            )
+        )
+        return flushed
+
+    def _add_read(self, client_hash: bytes, path: str, seconds: int) -> None:
+        """Add ``seconds`` of reading time for ``path`` to the current visit."""
+        if seconds <= 0:
+            return
+        index = self.sessions.get(client_hash)
+        if index is None or index >= len(self.data.visits):
+            return
+        visit = self.data.visits[index]
+        visit.read[path] = visit.read.get(path, 0) + seconds
+
+    def ping(
+        self,
+        from_: str,
+        to: str | None,
+        ip: str,
+        ua: str,
+        accept_language: str = "",
+        hide: bool = False,
+        read: int = 0,
+    ) -> tuple[int | None, list[bytes]]:
+        """Record a client navigation ping ({from, to, read} from pagerite.js).
+
+        ``to`` is an internal path ("/...") or an https URL for exit links; a
+        missing/empty ``to`` means the page is being closed and only the
+        ``read`` time should be recorded. The transition is always counted when
+        ``to`` is present; the trail only grows on first sight of a page within
+        the visit. ``read`` is the active time (seconds) spent on ``from_``.
+
+        A ping with no known session starts a fresh visit, consuming the
+        referer and UTM tags stashed by the document GET if there are any.
+
+        ``hide`` is set by admin clients: the ping cancels pending crawler
+        hits as usual, and any existing visit for this client session is
+        removed from the stats (the admin browsed anonymously before logging
+        in).  Nothing new is recorded.
+
+        Pings from IPs classified as abuse, and pings whose User-Agent
+        claims a JS-running crawler identity (``_is_bot_ua``), are ignored
+        entirely — the crawler's pending hits stay queued and flush to
+        ``data.crawlers`` normally.
+
+        Returns the index of the new visit when one is created (or None) and
+        the client hashes of any crawler hits flushed by this call, so callers
+        can schedule async enrichment (host, geoip country/city).
+        """
+        flushed = self._flush_crawlers()
+        lang, country = _parse_accept_language(accept_language)
+        client_hash = _client_hash(ip, ua, lang)
+        if hide:
+            # Admin ping: cancel pending crawler hits and scrub the session.
+            self.pending_crawlers = [
+                hit for hit in self.pending_crawlers if hit.client == client_hash
+            ]
+            index = self.sessions.pop(client_hash, None)
+            if index is not None and index < len(self.data.visits):
+                self._remove_visit(index)
+                self._save()
+            return None, flushed
+        if ip in self.data.abuse_ips:
+            return None, flushed
+        if _is_bot_ua(ua):
+            # A JS-running crawler (Googlebot, GoogleOther, Applebot execute
+            # JS and ping): never a visit.  Its pending crawler hits are
+            # kept and flush to ``data.crawlers`` normally.
+            return None, flushed
+        # A real visitor ping cancels any pending crawler hits from this client.
+        self.pending_crawlers = [
+            hit for hit in self.pending_crawlers if hit.client != client_hash
+        ]
+        fr_path = _internal_path(from_) if from_ else ""
+        if fr_path and read > 0:
+            self._add_read(client_hash, fr_path, read)
+        if not to:
+            if read > 0:
+                self._save()
+            return None, flushed
+        if to.startswith("/") and not to.startswith("//"):
+            target = _internal_path(to) or ""
+        else:
+            target = _external_target(to) or ""
+        if not target:
+            return None, flushed
+        index = self.sessions.get(client_hash)
+        fr = fr_path or "(direct)"
+        if index is None or index >= len(self.data.visits):
+            # No known session: the initial ping of a fresh page load (or
+            # missing data after a server restart) — start a visit.
+            index = len(self.data.visits)
+            self._ensure_client(ip, ua, lang, country=country)
+            self._new_visit(
+                target,
+                self.pending_referers.pop(ip, ""),
+                client_hash,
+                utm=self.pending_utms.pop(ip, {}),
+            )
+        else:
+            visit = self.data.visits[index]
+            now = datetime.now(UTC)
+            if target.startswith("/"):
+                self._count(self.data.views.setdefault(target, {}), _bucket(now))
+            self._count_transition(fr, target, now)
+            # First-seen only: repeat pages and repeated exits don't append.
+            if visit.entry != target and target not in visit.trail:
+                visit.trail.append(target)
+        self._save()
+        visit_index = index if index is not None and index < len(self.data.visits) else None
+        return visit_index, flushed

pagerite/app.py

@@ -12,23 +12,33 @@ walking the tree (``resolve``), moves are slot detach/attach
 (``find_slot``) with a fresh order key from the new siblings.
 """
 
+import asyncio
+import gzip
+import ipaddress
 import mimetypes
 import os
 import re
+import shutil
+import socket
 from collections.abc import AsyncIterator
 from contextlib import asynccontextmanager
 from datetime import UTC, datetime
 from email.utils import format_datetime
+from functools import lru_cache
 from pathlib import Path
+from urllib.parse import urlparse
+from xml.sax.saxutils import escape as xml_escape
 
 import blake3
+import msgspec
 from fastapi import FastAPI, HTTPException, Request, WebSocket, WebSocketDisconnect
-from fastapi.responses import HTMLResponse, RedirectResponse, Response
+from fastapi.responses import RedirectResponse, Response
 from fastapi_vue import Frontend
 from kanta import Kanta
 from pydantic import BaseModel
+from zstandard import ZstdCompressor
 
-from pagerite import seed, views
+from pagerite import analytics, seed, views
 from pagerite.__main__ import DEVMODE
 from pagerite.data import (
     Data,
@@ -43,6 +53,104 @@ from pagerite.markdown import has_h1, render, toggle_task
 
 DB_PATH = os.getenv("PAGERITE_DB", "pagerite.kantadb")
 
+# Visit analytics go to their own JSON file, not the kanta database.
+ANALYTICS_PATH = Path(
+    os.getenv("PAGERITE_ANALYTICS", DB_PATH.replace(".kantadb", "") + ".analytics.json")
+)
+analytics_store = analytics.Store(ANALYTICS_PATH)
+
+# Live WebSocket clients for the analytics stream.
+_analytics_ws_clients: set[WebSocket] = set()
+_analytics_broadcast_task: asyncio.Task | None = None
+
+
+# Repository root from this file's location (pagerite/app.py -> ..).
+_REPO_ROOT = Path(__file__).resolve().parent.parent
+
+
+def _geoip_db_path() -> Path | None:
+    """Find a DB-IP MMDB in the repo root, preferring an already-decompressed
+    ``.mmdb`` over the matching ``.mmdb.gz``.  Returns None if none is present.
+    """
+    mmdb = sorted(_REPO_ROOT.glob("dbip-*.mmdb"))
+    if mmdb:
+        return mmdb[0]
+    gz = sorted(_REPO_ROOT.glob("dbip-*.mmdb.gz"))
+    if gz:
+        return gz[0]
+    return None
+
+
+class GeoIP:
+    """Lazy DB-IP MMDB reader.  Call ``_load()`` once at startup before
+    concurrent requests arrive; ``country()`` is read-only and safe to call
+    from ``asyncio.to_thread`` workers afterwards.
+    """
+
+    def __init__(self) -> None:
+        self._reader: object | None = None
+
+    def _decompress(self, source: Path, target: Path) -> None:
+        if target.exists():
+            return
+        tmp = target.with_suffix(target.suffix + ".tmp")
+        with gzip.open(source, "rb") as src, open(tmp, "wb") as dst:
+            shutil.copyfileobj(src, dst)
+        os.replace(tmp, target)
+
+    def _load(self) -> None:
+        if self._reader is not None:
+            return
+        source = _geoip_db_path()
+        if source is None:
+            return
+        if source.suffix == ".gz":
+            target = source.with_suffix("")
+            self._decompress(source, target)
+            source = target
+        try:
+            import maxminddb
+
+            self._reader = maxminddb.open_database(str(source))
+        except Exception:
+            pass
+
+    def country(self, ip: str) -> str:
+        """Two-letter ISO country code for ``ip``, or "" when unavailable."""
+        if not ip or self._reader is None:
+            return ""
+        try:
+            rec = self._reader.get(ip)
+            if rec:
+                return (rec.get("country") or {}).get("iso_code", "")
+        except Exception:
+            pass
+        return ""
+
+    def city(self, ip: str) -> str:
+        """City name for ``ip``, or "" when unavailable.
+
+        GeoIP sometimes appends district names in parentheses (e.g.
+        "Berlin (Bezirk Tempelhof-Schöneberg)"); those are stripped before
+        the value is stored.
+        """
+        if not ip or self._reader is None:
+            return ""
+        try:
+            rec = self._reader.get(ip)
+            if rec:
+                city = (rec.get("city") or {}).get("names", {}).get("en", "")
+                if city:
+                    city = re.sub(r"\s*\([^)]*\)", "", city).strip()
+                return city
+        except Exception:
+            pass
+        return ""
+
+
+_geoip = GeoIP()
+
+
 # Our own data root; kanta edits it in place, reads are plain attribute access.
 data = Data()
 kanta = Kanta(DB_PATH, data)
@@ -121,26 +229,37 @@ def _migrate_legacy() -> None:
         data.version += 1
 
 
+@kanta.bootstrap
+def _seed(data: Data) -> None:
+    """Write the demo pages on database creation (never on existing dbs)."""
+    for path in seed.PAGES:
+        title, markdown, files, banner, order, design = seed.PAGES[path]
+        for orig, body in files.items():
+            markdown, banner = _store_seed_file(markdown, banner, orig, body)
+        node = _ensure(data.menu, path)
+        node.title = title
+        # Empty markdown means a pure category label (e.g. "showcase",
+        # seeded only to carry a banner design): leave content as None so
+        # the node renders the placeholder and nav points at its children.
+        if markdown:
+            node.content = markdown
+        node.banner = banner
+        node.banner_design = design
+        node.order = order
+
+
 @asynccontextmanager
 async def lifespan(_app: FastAPI) -> AsyncIterator[None]:
-    """Open the database, migrate/seed content, load assets."""
+    """Open the database, migrate legacy content, load assets, load GeoIP."""
     await kanta.open()
     _migrate_legacy()
-    missing = [p for p in seed.PAGES if resolve(data.menu, p) is None]
-    if missing:
-        with kanta.transaction("seed missing pages"):
-            for path in missing:
-                title, markdown, files, banner, order, design = seed.PAGES[path]
-                for orig, body in files.items():
-                    markdown, banner = _store_seed_file(markdown, banner, orig, body)
-                node = _ensure(data.menu, path)
-                node.title = title
-                node.content = markdown
-                node.banner = banner
-                node.banner_design = design
-                node.order = order
     await frontend.load()
+    # Decompress/open the DB-IP MMDB once at startup.  Lookups are then
+    # read-only and safe to run in background ``to_thread`` workers.
+    await asyncio.to_thread(_geoip._load)
+    analytics_store.subscribe(_schedule_analytics_broadcast)
     yield
+    analytics_store.unsubscribe(_schedule_analytics_broadcast)
     await kanta.close()
 
 
@@ -164,6 +283,79 @@ async def _headers(request: Request, call_next) -> Response:
     return response
 
 
+# Dynamic HTML is compressed per request at level 9 (static assets are
+# already pre-compressed by fastapi-vue's Frontend).
+_zstd = ZstdCompressor(9)
+
+
+def _render_html(kind: str, path: str, base_url: str) -> str:
+    """Render one of the generated pages (see _html_response)."""
+    if kind == "page":
+        return views.render_page(data.menu, path, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html, base_url)
+    if kind == "category":
+        return views.render_category(data.menu, path, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html)
+    if kind == "not-found":
+        return views.render_not_found(data.menu, path, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html)
+    return views.render_analytics(data.menu, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html)
+
+
+@lru_cache(maxsize=128)
+def _cached_body(kind: str, path: str, base_url: str, version: int, zstd: bool) -> bytes:
+    """Rendered page body. Every input the output depends on is in the key:
+    data.version bumps on any content/settings change, base_url feeds the
+    social meta URLs, and zstd selects the stored encoding (both variants
+    are cached rather than re-compressed).
+    """
+    body = _render_html(kind, path, base_url).encode()
+    return _zstd.compress(body) if zstd else body
+
+
+def _html_response(
+    request: Request,
+    kind: str,
+    path: str,
+    status_code: int = 200,
+    headers: dict | None = None,
+    etag: bool = False,
+) -> Response:
+    """Response for a generated page, zstd-compressed when the client
+    accepts it (no gzip fallback).
+
+    Done per handler rather than in middleware so that Frontend's
+    already-compressed asset responses are never touched. The ETag stays
+    identical across encodings (revalidation compares it before
+    compression); ``vary: accept-encoding`` keeps caches from mixing the
+    representations. In dev the cache is bypassed so theme/design edits on
+    disk apply immediately.
+
+    ``etag=True`` derives the validator from a blake3 hash of the
+    (uncompressed) body — for pages like /_a that have no Node whose
+    modified timestamp could serve as one — and answers matching
+    if-none-match revalidations with a 304.
+    """
+    zstd = "zstd" in request.headers.get("accept-encoding", "")
+    # Absolute social/canonical URLs use the learned public origin; until
+    # an admin visit teaches it, fall back to the request's own base URL.
+    base_url = data.site_url or str(request.base_url).rstrip("/")
+    if DEVMODE:
+        identity = _render_html(kind, path, base_url).encode()
+        body = _zstd.compress(identity) if zstd else identity
+    else:
+        identity = _cached_body(kind, path, base_url, data.version, False)
+        body = _cached_body(kind, path, base_url, data.version, True) if zstd else identity
+    h = dict(headers or {})
+    if zstd:
+        h["vary"] = "accept-encoding"
+    if etag:
+        tag = f'"{blake3.blake3(identity).hexdigest()[:32]}"'
+        h["etag"] = tag
+        if request.headers.get("if-none-match") == tag:
+            return Response(status_code=304, headers=h)
+    if zstd:
+        h["content-encoding"] = "zstd"
+    return Response(body, status_code, h, media_type="text/html")
+
+
 class PageIn(BaseModel):
     """Payload for creating or replacing a page."""
 
@@ -317,6 +509,33 @@ async def put_settings(settings: SettingsIn) -> None:
         data.version += 1
 
 
+class SiteUrlIn(BaseModel):
+    """Payload for learning the site's public origin."""
+
+    url: str
+
+
+@app.post("/_api/site-url", status_code=204)
+async def learn_site_url(payload: SiteUrlIn) -> None:
+    """Learn the site's public origin (scheme + host) from an admin browser.
+
+    pagerite.js reports location.origin once an admin session is detected:
+    unlike request Host headers it reflects the real public scheme and host
+    even behind reverse proxies, with zero manual configuration. Stored in
+    the database with a version bump so cached pages re-render with correct
+    absolute social/canonical URLs.
+    """
+    url = payload.url.rstrip("/")
+    parsed = urlparse(url)
+    if parsed.scheme not in ("http", "https") or not parsed.netloc or parsed.path:
+        raise HTTPException(400, "not an origin")
+    if url == data.site_url:
+        return
+    with kanta.transaction("learn site url"):
+        data.site_url = url
+        data.version += 1
+
+
 @app.put("/_api/settings/favicon")
 async def put_favicon(request: Request) -> dict[str, str]:
     """Upload a favicon into the content-addressed store and activate it.
@@ -489,6 +708,191 @@ async def delete_page(path: str) -> None:
 _SLUG_RE = re.compile(r"^[a-z0-9][a-z0-9_-]*$")
 
 
+def _client_ip(request: Request) -> str:
+    """Client IP: first X-Forwarded-For hop (we sit behind a proxy), else
+    the direct peer."""
+    forwarded = request.headers.get("x-forwarded-for", "").split(",")[0].strip()
+    return forwarded or (request.client.host if request.client else "")
+
+
+def _query_suffix(request: Request) -> str:
+    """The request's query string as a "?..." suffix, or "" when absent."""
+    query = str(request.url.query)
+    return f"?{query}" if query else ""
+
+
+@lru_cache(maxsize=4096)
+def _cached_ptr(ip: str) -> str:
+    """Reverse-DNS lookup with in-RAM LRU cache.  Returns the host name or ""."""
+    if not ip:
+        return ""
+    try:
+        addr = ipaddress.ip_address(ip)
+    except ValueError:
+        return ""
+    if addr.is_private or addr.is_loopback or addr.is_reserved or addr.is_multicast or addr.is_link_local:
+        return ""
+    try:
+        host, _, _ = socket.gethostbyaddr(ip)
+    except socket.herror:
+        return ""
+    return host
+
+
+async def _lookup_host(ip: str) -> str:
+    """Async wrapper around ``_cached_ptr``; runs the blocking lookup in a thread."""
+    return await asyncio.to_thread(_cached_ptr, ip)
+
+
+async def _geoip_country(ip: str) -> str:
+    """Async wrapper around the DB-IP MMDB lookup."""
+    return await asyncio.to_thread(_geoip.country, ip)
+
+
+async def _geoip_city(ip: str) -> str:
+    """Async wrapper around the DB-IP MMDB city lookup."""
+    return await asyncio.to_thread(_geoip.city, ip)
+
+
+async def _enrich_client(client_hash: bytes) -> None:
+    """Run non-blocking reverse-DNS and geoip enrichment for a client."""
+    client = analytics_store.data.clients.get(client_hash)
+    if not client or not client.ip:
+        return
+    host = await _lookup_host(client.ip)
+    country = await _geoip_country(client.ip)
+    city = await _geoip_city(client.ip)
+    analytics_store.enrich_client(client_hash, host=host, country=country, city=city)
+
+
+def _schedule_client_enrichment(client_hashes: list[bytes]) -> None:
+    """Start background host/geoip enrichment for the given client hashes."""
+    for client_hash in client_hashes:
+        asyncio.create_task(_enrich_client(client_hash))
+
+
+async def _broadcast_analytics() -> None:
+    """Send the current analytics snapshot to every connected WS client."""
+    if not _analytics_ws_clients:
+        return
+    payload = msgspec.json.encode(analytics_store.data).decode()
+    closed = set()
+    for ws in _analytics_ws_clients:
+        try:
+            await ws.send_text(payload)
+        except Exception:
+            closed.add(ws)
+    for ws in closed:
+        _analytics_ws_clients.discard(ws)
+
+
+async def _debounced_analytics_broadcast() -> None:
+    """Wait briefly, then broadcast the latest snapshot once."""
+    await asyncio.sleep(0.2)
+    await _broadcast_analytics()
+
+
+def _schedule_analytics_broadcast() -> None:
+    """Schedule a single debounced broadcast, ignoring duplicate triggers."""
+    global _analytics_broadcast_task
+    if _analytics_broadcast_task is not None and not _analytics_broadcast_task.done():
+        return
+    _analytics_broadcast_task = asyncio.get_running_loop().create_task(
+        _debounced_analytics_broadcast()
+    )
+
+
+class AnalyticsPing(BaseModel):
+    """Navigation ping from pagerite.js (see docs/analytics.md)."""
+
+    fr: str = ""
+    to: str | None = None
+    #: 1 from admin clients: scrub the session instead of recording it.
+    hide: int = 0
+    #: Active reading time on ``fr`` (ms), if any.
+    read: int = 0
+
+
+@app.get("/_a", response_model=None)
+async def analytics_page(request: Request) -> Response:
+    """Render the analytics viewer as a normal site page at /_a.
+
+    The page itself is public, but the data stream (/_api/ws/analytics) stays
+    admin-gated like the rest of /_api, so only authorized users see the
+    statistics; others get the viewer with a "could not be loaded" message.
+    """
+    return _html_response(
+        request,
+        "analytics",
+        "",
+        headers={"cache-control": "no-cache"},
+        etag=True,
+    )
+
+
+@app.post("/_a", status_code=204)
+async def analytics_ping(ping: AnalyticsPing, request: Request) -> None:
+    """Record a navigation ping ({fr, to}); fire-and-forget, never fails.
+
+    The reverse-DNS and DB-IP geoip lookups happen in a background task so
+    the response is never delayed by slow DNS or the first MMDB decompress.
+    """
+    ip = _client_ip(request)
+    visit_index, flushed_clients = analytics_store.ping(
+        ping.fr,
+        ping.to,
+        ip,
+        request.headers.get("user-agent", ""),
+        request.headers.get("accept-language", ""),
+        hide=bool(ping.hide),
+        read=ping.read,
+    )
+    if visit_index is not None:
+        visit = analytics_store.data.visits[visit_index]
+        asyncio.create_task(_enrich_client(visit.client))
+    _schedule_client_enrichment(flushed_clients)
+
+
+def _track_entry(path: str, request: Request) -> list[bytes]:
+    """Stash the referer/UTM tags and queue a pending crawler hit for the GET.
+
+    Nothing is counted on the GET itself — the client's /_a ping starts the
+    visit, so bots never register as visits (JS-running crawlers ping too,
+    but the ping handler ignores known bot UAs).  (Admin clients ping too,
+    but with hide=1, which scrubs their session instead of recording it.)
+
+    The devserver's health probe (``GET /?from=devserver.py`` from
+    ``127.0.0.1``) is ignored: it is not real traffic and would otherwise be
+    logged as a crawler hit.  The root-path and localhost checks prevent
+    remote visitors from hiding traffic with the same query string.
+
+    Returns the client hashes of any pending crawler hits flushed to persistent
+    storage, so callers can schedule async geoip and reverse-DNS enrichment.
+    """
+    if request.headers.get("x-pagerite-preload"):
+        # Idle-time page-cache warm-up by pagerite.js, not a page view: the
+        # ping sent when the user actually navigates does the counting.
+        # (Forging the header only hides a GET from the crawler stats; the
+        # path-based abuse classification is unaffected.)
+        return []
+    if (
+        path == ""
+        and str(request.url.query) == "from=devserver.py"
+        and _client_ip(request) == "127.0.0.1"
+    ):
+        return []
+    own_origin = f"https://{urlparse(str(request.base_url)).netloc}"
+    full_path = f"{request.url.path}{_query_suffix(request)}"
+    return analytics_store.track_entry(
+        request.headers.get("referer", ""),
+        own_origin,
+        _client_ip(request),
+        request.headers.get("user-agent", ""),
+        full_path,
+        request.headers.get("accept-language", ""),
+    )
+
+
 def _http_date(dt: datetime) -> str:
     """RFC 7231 date for the Last-Modified header."""
     return format_datetime(dt.astimezone(UTC), usegmt=True)
@@ -504,6 +908,15 @@ def _is_reserved(path: str) -> bool:
     return any(not _SLUG_RE.match(seg) for seg in path.split("/"))
 
 
+def _is_trackable_path(path: str) -> bool:
+    """Content URLs only: skip auth endpoints and reserved/machinery paths."""
+    if not path:
+        return True
+    if path == "auth" or path.startswith("auth/"):
+        return False
+    return not _is_reserved(path)
+
+
 def _check_reserved(path: str) -> None:
     """Reject paths that do not follow the slug charset."""
     if _is_reserved(path):
@@ -513,6 +926,25 @@ def _check_reserved(path: str) -> None:
         )
 
 
+@app.websocket("/_api/ws/analytics")
+async def analytics_websocket(ws: WebSocket) -> None:
+    """Stream the analytics snapshot, then push updates as they happen.
+
+    Admin-only via the /_api forward-auth gate, like every management
+    endpoint. Powers the analytics viewer rendered at /_a.
+    """
+    await ws.accept()
+    await ws.send_text(msgspec.json.encode(analytics_store.data).decode())
+    _analytics_ws_clients.add(ws)
+    try:
+        while True:
+            await ws.receive_text()
+    except Exception:
+        pass
+    finally:
+        _analytics_ws_clients.discard(ws)
+
+
 @app.websocket("/_api/ws/editor")
 async def editor_ws(ws: WebSocket) -> None:
     """Editor session: open pages, render previews, save — over one socket.
@@ -664,36 +1096,128 @@ async def front_page(request: Request) -> Response:
     return await show_page(request, "")
 
 
+@app.get("/sitemap.xml")
+async def sitemap(request: Request) -> Response:
+    """Dynamically generate a sitemap of all published article pages."""
+    base = str(request.base_url).rstrip("/")
+    entries: list[tuple[str, datetime, int]] = []
+
+    def walk(
+        nodes: dict[str, Node], prefix: str, parent_has_content: bool = True
+    ) -> None:
+        first_content_slug = next(
+            (
+                slug
+                for slug, node in sorted_nodes(nodes)
+                if node.published and node.content is not None
+            ),
+            None,
+        )
+        for slug, node in sorted_nodes(nodes):
+            path = f"{prefix}/{slug}" if prefix else slug
+            depth = path.count("/") if path else 0
+            if (
+                not parent_has_content
+                and slug == first_content_slug
+                and node.published
+                and node.content is not None
+                and depth > 0
+            ):
+                depth -= 1
+            if node.published and node.content is not None:
+                entries.append((path, node.modified, depth))
+            if node.children:
+                walk(node.children, path, node.content is not None)
+
+    walk(data.menu, "")
+
+    def priority(depth: int) -> float:
+        return max(0.1, 1.0 - depth * 0.2)
+
+    lines = [
+        '<?xml version="1.0" encoding="UTF-8"?>',
+        '<urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">',
+    ]
+    for path, modified, depth in entries:
+        loc = xml_escape(f"{base}/{path}" if path else base)
+        lastmod = (
+            modified.astimezone(UTC).replace(microsecond=0).isoformat().replace("+00:00", "Z")
+        )
+        lines.append(
+            f"  <url>"
+            f"<loc>{loc}</loc>"
+            f"<lastmod>{lastmod}</lastmod>"
+            f"<priority>{priority(depth):.1f}</priority>"
+            f"</url>"
+        )
+    lines.append("</urlset>")
+
+    return Response(
+        "\n".join(lines),
+        media_type="application/xml",
+        headers={"cache-control": "no-cache"},
+    )
+
+
+@app.get("/robots.txt")
+async def robots_txt(request: Request) -> Response:
+    """Allow all crawling and point crawlers at the sitemap."""
+    base = str(request.base_url).rstrip("/")
+    body = f"User-agent: *\nAllow: /\nSitemap: {base}/sitemap.xml\n"
+    return Response(
+        body,
+        media_type="text/plain",
+        headers={"cache-control": "no-cache"},
+    )
+
+
 # Vue build asset routes are inserted at this position during load(): the
 # build mirrors the URL space (/_assets/*, /favicon.ico at the root).
 frontend.route(app, "/")
 
 
 @app.get("/{path:path}", response_model=None)
-async def show_page(request: Request, path: str) -> HTMLResponse | Response:
+async def show_page(request: Request, path: str) -> Response:
     """Render the content page at a slug path, or 404.
 
     A node without content is a category label: its URL renders a
     placeholder page (nav links point straight at its first child).
     """
     path = path.strip("/")
+    ua = request.headers.get("user-agent", "")
+    accept_language = request.headers.get("accept-language", "")
     if path and _is_reserved(path):
         # Invalid slug shape: not a content URL, let FastAPI return its
         # built-in 404 instead of rendering an editable article page.
+        # Scanner telltales (dotpaths like /.env, *.php) classify the IP
+        # as abuse in analytics.
+        client_hash = analytics_store.track_404(
+            _client_ip(request),
+            ua,
+            f"/{path}{_query_suffix(request)}",
+            accept_language,
+        )
+        asyncio.create_task(_enrich_client(client_hash))
         raise HTTPException(404)
     chain = resolve(data.menu, path)
     node = chain[-1] if chain else None
     if node is not None and node.published and node.content is not None:
-        # ETag on content + render version; clients revalidate cheaply,
-        # which keeps prefetched pages warm and current. no-cache forces
-        # that revalidation: with Last-Modified but no Cache-Control,
-        # browsers would otherwise cache heuristically and serve stale
-        # pages (e.g. after a theme change) without asking us at all.
+        # no-cache forbids serving a stored page without revalidation
+        # (browsers would otherwise cache heuristically and serve stale
+        # pages, e.g. after a theme change). In-session speed instead comes
+        # from pagerite.js's in-memory page cache (preload everything, never
+        # fetch on navigation); the ETag just makes those one-time preload
+        # fetches and any revalidation cheap.
         etag = f'"{path}@{node.modified.timestamp()}v{data.version}"'
         if request.headers.get("if-none-match") == etag:
             return Response(status_code=304)
-        return HTMLResponse(
-            views.render_page(data.menu, path, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html),
+        if _is_trackable_path(path):
+            flushed = _track_entry(path, request)
+            _schedule_client_enrichment(flushed)
+        return _html_response(
+            request,
+            "page",
+            path,
             headers={
                 "etag": etag,
                 "last-modified": _http_date(node.modified),
@@ -703,8 +1227,13 @@ async def show_page(request: Request, path: str) -> HTMLResponse | Response:
     if node is not None and node.published and node.content is None:
         # Category label without a landing page: placeholder with the pen
         # to create it (404 — no page here, but the node is real).
-        return HTMLResponse(
-            views.render_category(data.menu, path, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html),
+        if _is_trackable_path(path):
+            flushed = _track_entry(path, request)
+            _schedule_client_enrichment(flushed)
+        return _html_response(
+            request,
+            "category",
+            path,
             404,
             headers={
                 "last-modified": _http_date(node.modified),
@@ -717,4 +1246,14 @@ async def show_page(request: Request, path: str) -> HTMLResponse | Response:
         for slug, item in sorted_nodes(data.menu):
             if item.published:
                 return RedirectResponse(f"/{slug}")
-    return HTMLResponse(views.render_not_found(data.menu, path, data.brand, data.custom_css, data.theme, data.favicon, data.brand_html), 404)
+    if _is_trackable_path(path):
+        client_hash = analytics_store.track_404(
+            _client_ip(request),
+            ua,
+            f"/{path}{_query_suffix(request)}",
+            accept_language,
+        )
+        asyncio.create_task(_enrich_client(client_hash))
+        flushed = _track_entry(path, request)
+        _schedule_client_enrichment(flushed)
+    return _html_response(request, "not-found", path, 404)

pagerite/data.py

@@ -91,8 +91,8 @@ class Data(msgspec.Struct):
     #: banner artwork, next to the nav. Empty = the plain brand link.
     brand_html: str = ""
     #: Active theme name (empty = none/base only). Themes live in
-    #: frontend/src/assets/themes/{theme}/theme.css, with their banner
-    #: artwork at pagerite/themes/{theme}/banner.svg (inlined server-side).
+    #: pagerite/themes/{theme}/ (theme.css and/or banner.css/banner.svg/
+    #: banner.html), served by the backend from disk.
     theme: str = "purple"
     #: Raw site-wide custom CSS, injected inline in every page <head>.
     #: Trusted author content; not sanitized.
@@ -100,6 +100,12 @@ class Data(msgspec.Struct):
     #: Favicon: name of a file in `files` (content-addressed), linked as
     #: <link rel="icon"> on every page. Empty = the build's /favicon.ico.
     favicon: str = ""
+    #: Public origin (scheme + host) of the site, learned from admin
+    #: browsers (POST /_api/site-url — location.origin is correct even
+    #: behind reverse proxies, unlike request Host headers). Used for
+    #: absolute social/canonical URLs; empty = fall back to the request's
+    #: own base URL.
+    site_url: str = ""
     #: Legacy flat page store (pre-tree databases); migrated into `menu`
     #: on startup, then cleared. Never written otherwise.
     pages: dict[str, Page] = {}

pagerite/seed.py

@@ -1,147 +1,342 @@
-"""Seed content written to the database on first run (when it is empty).
+"""Seed content written to the database on first creation only
+(``@kanta.bootstrap`` in ``app.py``).
 
-Demonstrates the formatting options: images attached to pages and served
-from the page path, figures with captions, attribute classes for
-positioning, footnotes, definition lists, task lists, tables and raw HTML.
+A "welcome to your new site" starter: a structured docs section (three
+menu levels deep) covering editing and the full Markdown feature set —
+each feature shown as its Markdown source in a code block followed by
+the rendered result — and a showcase section with image positioning,
+long-form layout and a simple custom banner.
+
+Binary seed images live in ``seed-assets/`` (public domain, from
+Wikimedia Commons: the two whale engravings are Augustus Burnham
+Shute's illustrations for an 1892 edition of Moby-Dick; the wave is
+Hokusai's "The Great Wave off Kanagawa").
 """
 
+from pathlib import Path
+
+ASSETS = Path(__file__).with_name("seed-assets")
+
+
+def _asset(name: str) -> bytes:
+    return (ASSETS / name).read_bytes()
+
 WELCOME = """\
-Welcome to your new **Pagerite** site. Pages are written in Markdown — including raw HTML — and served from pretty URLs.
+Welcome to your new **Pagerite** site. Everything you see is a page written in Markdown, served from a pretty URL, and editable right here in the browser.
 
-Have a look around:
+Where to go next:
 
-- The [docs](/docs) section explains [how to write content](/docs/editing), including images and positioning.
-- [The Long Read](/blog/the-long-read) demonstrates a longer article with scroll effects.
-- The [about](/about) page shows off assorted formatting.
+- The [docs](/docs/editing) section explains how to edit this site and shows every supported Markdown feature, source and result side by side.
+- The [showcase](/showcase/gallery) section shows what finished pages can look like: image positioning, banners, a long read.
+- Click the 🖊️ pen on any page to open the editor, and the ⚙️ pen for site settings and the structure tree.
+- Elsewhere on the web: [![xkcd 927: Standards](https://imgs.xkcd.com/comics/standards.png "xkcd 927: Standards"){width=240}](https://xkcd.com/927/) — a cautionary tale about adding one more standard.
 
-![Abstract waves](waves.svg "Generated SVG artwork, attached to this page")
+![Abstract waves](waves.svg "Generated SVG artwork, attached to this page"){width=420}
+
+*Delete or rewrite any of these pages — they are only here to get you started.*
 """
 
-ABOUT = """\
-This site runs on **Pagerite**: FastAPI + html5tagger + kanta, with content written in Markdown.
+EDITING = """\
+Everything on the site is editable in place. Log in, and pens appear: 🖊️ on the page and banner, ⚙️ in the banner corner for site settings.
 
-Some formatting samples:
+## The editor
 
-- [x] Write content in Markdown
-- [x] Attach images to pages
-- [ ] Add editing UI
+The 🖊️ pens open a tabbed editor over the page you are viewing:
 
-Term
-: A definition list entry, rendered by the deflist plugin.
+- **Article** — the page's title and Markdown, with a live preview. The format bar inserts the harder-to-remember syntax (links, tables, images); Ctrl/Cmd-B, I and S do what you expect. Saving is explicit: 💾 or Ctrl+S.
+- **Banner** — per-page banner HTML and a banner design picker. Banners are raw HTML (an image, a styled div, a canvas with a script) and subpages inherit the nearest banner up their path.
+- **Site** — brand, theme, fonts, favicon and custom CSS, all applied immediately.
+- **Structure** — the page tree. Drag rows to reorder or nest, rename titles and slugs inline, ➕ adds a page, ✕ deletes one.
 
-And a table:
+## URLs and structure
+
+The URL is the structure: a page at `docs/markdown/basics` lives under `docs` and `markdown`, and the menus are derived from that. Slugs are lowercase ASCII (`a-z 0-9 - _`). A node without content is a category label — it renders a placeholder and its menu link points at its first child page.
+
+Images and files uploaded anywhere land in a content-addressed store served from `/_f/{hash}.ext`, so links survive page moves. The article editor's format bar and copy-paste both upload images for you.
+
+{dates}
+"""
+
+MD_BASICS = """\
+# Markdown Basics
+
+Every feature below is shown twice: first the Markdown source, then how it renders.
+
+## Headings and text
+
+```markdown
+## A section heading
+### A subsection
+
+*Emphasis*, **strong**, ~~strikethrough~~, `inline code`, and a
+[link to the front page](/). An image that links to its page:
+[![xkcd 1179: ISO 8601](https://imgs.xkcd.com/comics/iso_8601.png "xkcd 1179: ISO 8601"){width=240}](https://xkcd.com/1179/) — and a hard line break
+is just a newline.
+```
+
+## A section heading
+### A subsection
+
+*Emphasis*, **strong**, ~~strikethrough~~, `inline code`, and a [link to the front page](/). An image that links to its page: [![xkcd 1179: ISO 8601](https://imgs.xkcd.com/comics/iso_8601.png "xkcd 1179: ISO 8601"){width=240}](https://xkcd.com/1179/) — and a hard line break
+is just a newline.
+
+## Lists and quotes
+
+```markdown
+- One
+- Two
+  - Nested
+
+1. First
+2. Second
+
+> A blockquote. The URL space is the author's:
+> pretty slugs at the root, nesting only where
+> the content is genuinely structured.
+```
+
+- One
+- Two
+  - Nested
+
+1. First
+2. Second
+
+> A blockquote. The URL space is the author's:
+> pretty slugs at the root, nesting only where
+> the content is genuinely structured.
+
+## Code
+
+Fenced blocks get server-side syntax highlighting:
+
+````markdown
+```python
+def greet(name: str) -> str:
+    return f"Hello, {name}!"
+```
+````
+
+```python
+def greet(name: str) -> str:
+    return f"Hello, {name}!"
+```
+
+## Tables
+
+```markdown
+| Feature | Status |
+|---------|--------|
+| Pages   | done   |
+| Images  | done   |
+```
 
 | Feature | Status |
 |---------|--------|
 | Pages   | done   |
 | Images  | done   |
-| Comments| later  |
+"""
 
-Footnotes work too.[^1]
+MD_EXTENSIONS = """\
+# Markdown Extensions
+
+Markdown extensions enabled on this site, source first, then rendered.
+
+## Footnotes
+
+```markdown
+Footnotes work inline.[^1]
 
 [^1]: Rendered at the bottom of the page, with a back-reference.
+```
+
+Footnotes work inline.[^1]
+
+[^1]: Rendered at the bottom of the page, with a back-reference.
+
+## Definition lists
+
+```markdown
+Term
+: A definition list entry.
+
+Another term
+: With its definition.
+```
+
+Term
+: A definition list entry.
+
+Another term
+: With its definition.
+
+## Task lists
+
+```markdown
+- [x] Write content in Markdown
+- [x] Attach images to pages
+- [x] Make tasks clickable on the rendered page
+```
+
+- [x] Write content in Markdown
+- [x] Attach images to pages
+- [x] Make tasks clickable on the rendered page
+
+## Admonitions
+
+```markdown
+!!! note
+    An admonition block for notes, warnings, tips...
+```
+
+!!! note
+    An admonition block for notes, warnings, tips...
+
+## Sub- and superscript
+
+```markdown
+H~2~O and x^2^ + y^2^ = z^2^.
+```
+
+H~2~O and x^2^ + y^2^ = z^2^.
+
+## Raw HTML
+
+HTML passes through untouched — useful for `<kbd>` keys, `<details>` sections, embedded media:
+
+```html
+<details><summary>Click to expand</summary>Hidden content.</details>
+```
+
+<details><summary>Click to expand</summary>Hidden content.</details>
+
+## Smart typography
+
+The typographer is on, so straight quotes become curly, `--` becomes -- and `...` becomes ...
 """
 
-EDITING = """\
-Pages are written in Markdown with extensions. Everything below is plain Markdown source — no special support from the article is needed for the site's layout or scroll effects.
+MD_LAYOUT = """\
+## Images and figures
 
-## Images
+An image standing alone in its paragraph becomes a `<figure>`; its title becomes the caption. Inline images within text stay plain.
 
-Upload a file (`PUT /_api/files/{filename}`) and it lands in the content-addressed store, served immutable from `/_f/{hash}.ext` — an absolute URL that survives page moves:
-
-```
-![Abstract shapes](/_f/....svg "A captioned figure"){.right width=280}
+```markdown
+![Abstract shapes](shapes.svg "A captioned figure")
 ```
 
-![Abstract shapes](shapes.svg "A captioned figure, floated right with an attribute class"){.right width=280}
+![Abstract shapes](shapes.svg "A captioned figure")
 
-The title becomes a `<figcaption>`, and brace attributes (the attrs plugin) control positioning: `{.right}`, `{.left}`, `{.wide}`, plus plain attributes like `width=280`. Absolute and external URLs pass through unchanged.
+## Positioning with attributes
 
-## Text
+Brace attributes (the attrs plugin) control placement: `{.right}` and `{.left}` float, `{.wide}` breaks out of the text column, and plain attributes like `width=280` pass through.
 
-*Emphasis*, **strong**, ~~strikethrough~~, `inline code`, and [links](/about) as usual. Blockquotes:
-
-> The URL space is the author's. Pretty slugs at the root, nesting only
-> where the content is genuinely structured.
-
-## Code
-
-```python
-def render(text: str, page_path: str) -> str:
-    return md.render(text, {"page_path": page_path})
+```markdown
+![Abstract shapes](shapes.svg "Floated right"){.right width=280}
 ```
-"""
 
-LONG_READ = """\
-*An essay long enough to scroll, to demonstrate the gentle reveal of headings, figures and code blocks as they enter the viewport.*
+![Abstract shapes](shapes.svg "Floated right — text wraps around it"){.right width=280}
+
+Floated images let the text wrap around them, like this paragraph does. Relative image paths resolve against the page's own path, so attached files travel with the page. Uploaded files get content-addressed `/_f/` URLs that never break, no matter where the page moves.
+
+{.wide} artwork spans the full content width:
+
+```markdown
+![Dunes](dunes.svg "Full-width artwork"){.wide}
+```
+
+![Dunes](dunes.svg "Full-width artwork between sections"){.wide}
+
+## Datelines
+
+A `{dates}` line on its own expands to the article's published/updated dateline:
+
+```markdown
+{dates}
+```
 
 {dates}
 
-![Layered dunes](dunes.svg "Full-width artwork between sections"){.wide}
+## The page title
 
-## Chapter one
-
-The distinction between a blog and a website is largely an accident of history. Early content management systems filed everything under "posts", stamped them with a date, and arranged them in reverse chronological order under a `/blog/` prefix. Anything else was a "page", which lived somewhere else entirely, often in a separate editing interface with separate rules.
-
-But readers do not think in these terms. A reader follows a link, reads what is there, and follows another link. The URL is a promise about where something lives, not about which database table it came from. Pagerite therefore treats every piece of content as a page: named, addressable, and rendered on the fly.
-
-## Chapter two
-
-Consider what happens to URLs when the tooling leads the design. You get addresses like `/cms/frontpage` or `/blog/post1` — the name of the machine leaking into the name of the thing. The slug should be chosen by the author, the way a book's title is chosen, and it should sit at the root of the site like the title sits on the cover.
-
-Nesting still has its place. Structured content — documentation, a series, a portfolio — benefits from paths that mirror the structure. The navigation on this very site is derived from the paths: open a section, and you see what it contains. No menu editor, no duplication of structure in two places.
-
-Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.
-
-Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium, totam rem aperiam, eaque ipsa quae ab illo inventore veritatis et quasi architecto beatae vitae dicta sunt explicabo. Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, sed quia consequuntur magni dolores eos qui ratione voluptatem sequi nesciunt.
-
-## Chapter three
-
-On the reading experience itself: motion on the web is usually either absent or obnoxious. The interesting middle ground is motion that acknowledges the reader's own movement — the scroll. Elements that fade in as they enter the viewport give the page a sense of depth, as if the content were arriving just in time.
-
-Crucially, none of this may depend on the article. The author writes Markdown; the effects come from the layout. And when the reader prefers reduced motion, everything must hold still.
-
-Neque porro quisquam est, qui dolorem ipsum quia dolor sit amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora incidunt ut labore et dolore magnam aliquam quaerat voluptatem. Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur?
-
-```text
-Quis autem vel eum iure reprehenderit
-qui in ea voluptate velit esse quam nihil
-molestiae consequatur, vel illum qui
-dolorem eum fugiat quo voluptas nulla pariatur?
-```
-
-At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio.
-
-## Chapter four
-
-Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Temporibus autem quibusdam et aut officiis debitis aut rerum necessitatibus saepe eveniet ut et voluptates repudiandae sint et molestiae non recusandae.
-
-Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat. And so we arrive back where we started: the blog and the website were one thing all along. [Return to the front page](/).
+If your Markdown contains its own `# heading`, the page title is not repeated as a second h1 — it still supplies the `<title>` and the menu labels.
 """
 
-NOTES_ON_URLS = """\
-A URL is part of the content. A few rules of thumb I keep coming back to:
+GALLERY = """\
+Pages can attach images and position them freely. The vector artwork here is generated SVG; the woodblock print is Hokusai's *The Great Wave off Kanagawa* (public domain, via Wikimedia Commons).
 
-- Pick slugs like book titles, not like database keys.
-- Nest only when the structure is real.
-- Once published, a URL is a promise. Redirect if you must break it.
+![The Great Wave off Kanagawa](great-wave.jpg "Hokusai, c. 1831 — full-bleed with {.wide}"){.wide}
 
-> Cool URIs don't change; uncool ones at least apologise.
+A wide image escapes the text column for emphasis between sections. No HTML needed — just Markdown and an attribute.
 
-That's all. Short posts are posts too.
+![Shapes](shapes.svg "Floated left with {.left}"){.left width=240}
+
+This text wraps around a left-floated figure. The caption comes from the image title, the float from `{.left width=240}` — brace attributes on the image itself.
+
+![Abstract waves](waves.svg "Floated right with {.right}"){.right width=240}
+
+Mixing floats in one article is fine. Both images were uploaded to this page and referenced by relative path, so the whole page (images included) can be moved in the structure tree without breaking anything.
 """
 
-CANVAS_NIGHTS = """\
-This post's banner is not an image at all — it's a `<canvas>` animated by a few lines of JavaScript embedded in the page's banner HTML.
+NIGHT_SKY = """\
+This page's banner is not an image or a code snippet — it's the **stars** banner design, picked from a dropdown in the banner editor (🖊️ in the banner corner). Nothing is stored in the page beyond that choice.
 
-Banners on this site are arbitrary markup: an image, a gradient div, or a small animated scene like the one above. Subpages inherit the nearest banner up their path, so a whole section can share one look.
+Banner designs are folders in `pagerite/themes/{name}/` — a `banner.css` plus a `banner.html` or `banner.svg` — so a design can be anything from a static gradient to an animated canvas like the starfield above. This site ships `stars` and `eyes` (a critter in the grass), and themes can bring their own.
 
-```js
-// the essence of the banner above
-stars.forEach(s => { s.x = (s.x + s.speed * dt) % 1 })
-```
+Subpages inherit the nearest banner and design up their path, so a whole section can share one look. This page is a leaf: set a design here and nothing else is affected.
 
-No build step, no framework — the snippet is stored with the page and dropped into the header as-is.
+A page can also carry its own banner HTML — an `<img>`, a styled div, a canvas with a script — which renders *on top of* the design's artwork, so author code always wins. But most of the time, picking a design is all you need.
+"""
+
+# Moby-Dick; or, The Whale (1851), Herman Melville — public domain.
+# Chapter 1, abridged and headed. A real long-read: flowing sections,
+# figures, a list — not a feature showcase. (Engravings: Augustus
+# Burnham Shute's illustrations for the 1892 edition, public domain.)
+LOOMINGS = """\
+*The opening of Herman Melville's Moby-Dick (1851), abridged — here to show what a longer article feels like: the multi-column layout on wide screens, images breaking up the text, and the gentle reveal as sections scroll into view.*
+
+{dates}
+
+![Dunes at dusk](dunes.svg "Full-width artwork between sections"){.wide}
+
+## The watery part of the world
+
+Call me Ishmael. Some years ago — never mind how long precisely — having little or no money in my purse, and nothing particular to interest me on shore, I thought I would sail about a little and see the watery part of the world. It is a way I have of driving off the spleen and regulating the circulation. Whenever I find myself growing grim about the mouth; whenever it is a damp, drizzly November in my soul; whenever I find myself involuntarily pausing before coffin warehouses, and bringing up the rear of every funeral I meet; and especially whenever my hypos get such an upper hand of me, that it requires a strong moral principle to prevent me from deliberately stepping into the street, and methodically knocking people's hats off — then, I account it high time to get to sea as soon as I can. This is my substitute for pistol and ball. With a philosophical flourish Cato throws himself upon his sword; I quietly take to the ship. There is nothing surprising in this. If they but knew it, almost all men in their degree, some time or other, cherish very nearly the same feelings towards the ocean with me.
+
+![Moby Dick breeches a whaleboat](md-whale.jpg "Augustus Burnham Shute, 1892 — public domain"){.right width=320}
+
+There now is your insular city of the Manhattoes, belted round by wharves as Indian isles by coral reefs — commerce surrounds it with her surf. Right and left, the streets take you waterward. Its extreme downtown is the battery, where that noble mole is washed by waves, and cooled by breezes, which a few hours previous were out of sight of land. Look at the crowds of water-gazers there.
+
+Circumambulate the city of a dreamy Sabbath afternoon. Go from Corlears Hook to Coenties Slip, and from thence, by Whitehall, northward. What do you see? — Posted like silent sentinels all around the town, stand thousands upon thousands of mortal men fixed in ocean reveries. Some leaning against the spiles; some seated upon the pier-heads; some looking over the bulwarks of ships from China; some high aloft in the rigging, as if striving to get a still better seaward peep. But these are all landsmen; of week days pent up in lath and plaster — tied to counters, nailed to benches, clinched to desks. How then is this? Are the green fields gone? What do they here?
+
+But look! here come more crowds, pacing straight for the water, and seemingly bound for a dive. Strange! Nothing will content them but the extremest limit of the land; loitering under the shady lee of yonder warehouses will not suffice. No. They must get just as nigh the water as they possibly can without falling in. And there they stand — miles of them — leagues. Inlanders all, they come from lanes and alleys, streets and avenues — north, east, south, and west. Yet here they all unite. Tell me, does the magnetic virtue of the needles of the compasses of all those ships attract them thither?
+
+## Meditation and water
+
+Once more. Say you are in the country; in some high land of lakes. Take almost any path you please, and ten to one it carries you down in a dale, and leaves you there by a pool in the stream. There is magic in it. Let the most absent-minded of men be plunged in his deepest reveries — stand that man on his legs, set his feet a-going, and he will infallibly lead you to water, if water there be in all that region. Should you ever be athirst in the great American desert, try this experiment, if your caravan happen to be supplied with a metaphysical professor. Yes, as every one knows, meditation and water are wedded for ever.
+
+### The artist's problem
+
+But here is an artist. He desires to paint you the dreamiest, shadiest, quietest, most enchanting bit of romantic landscape in all the valley of the Saco. What is the chief element he employs? There stand his trees, each with a hollow trunk, as if a hermit and a crucifix were within; and here sleeps his meadow, and there sleep his cattle; and up from yonder cottage goes a sleepy smoke. Deep into distant woodlands winds a mazy way, reaching to overlapping spurs of mountains bathed in their hill-side blue. But though the picture lies thus tranced, and though this pine-tree shakes down its sighs like leaves upon this shepherd's head, yet all were vain, unless the shepherd's eye were fixed upon the magic stream before him.
+
+Why did the poor poet of Tennessee, upon suddenly receiving two handfuls of silver, deliberate whether to buy him a coat, which he sadly needed, or invest his money in a pedestrian trip to Rockaway Beach? Why is almost every robust healthy boy with a robust healthy soul in him, at some time or other crazy to go to sea? Why upon your first voyage as a passenger, did you yourself feel such a mystical vibration, when you were first told that you and your ship were now out of sight of land? Why did the old Persians hold the sea holy? Why did the Greeks give it a separate deity, and own brother of Jove? Surely all this is not without meaning. And still deeper the meaning of that story of Narcissus, who because he could not grasp the tormenting, mild image he saw in the fountain, plunged into it and was drowned. But that same image, we ourselves see in all rivers and oceans. It is the image of the ungraspable phantom of life; and this is the key to it all.
+
+## A simple sailor, right before the mast
+
+Now, when I say that I am in the habit of going to sea whenever I begin to grow hazy about the eyes, and begin to be over conscious of my lungs, I do not mean to have it inferred that I ever go to sea as a passenger. For to go as a passenger you must needs have a purse, and a purse is but a rag unless you have something in it. Besides, passengers get sea-sick — grow quarrelsome — don't sleep of nights — do not enjoy themselves much, as a general thing; — no, I never go as a passenger; nor, though I am something of a salt, do I ever go to sea as a Commodore, or a Captain, or a Cook. I abandon the glory and distinction of such offices to those who like them. For my part, I abominate all honorable respectable toils, trials, and tribulations of every kind whatsoever. It is quite as much as I can do to take care of myself, without taking care of ships, barques, brigs, schooners, and what not.
+
+No, when I go to sea, I go as a simple sailor, right before the mast, plumb down into the forecastle, aloft there to the royal mast-head. True, they rather order me about some, and make me jump from spar to spar, like a grasshopper in a May meadow. And at first, this sort of thing is unpleasant enough. It touches one's sense of honor, particularly if you come of an old established family in the land, the Van Rensselaers, or Randolphs, or Hardicanutes. And more than all, if just previous to putting your hand into the tar-pot, you have been lording it as a country schoolmaster, making the tallest boys stand in awe of you. The transition is a keen one, I assure you, from a schoolmaster to a sailor, and requires a strong decoction of Seneca and the Stoics to enable you to grin and bear it. But even this wears off in time.
+
+![The final chase](md-chase.jpg "A. Burnham Shute's illustration of the final chase, 1892 — public domain")
+
+What of it, if some old hunks of a sea-captain orders me to get a broom and sweep down the decks? What does that indignity amount to, weighed, I mean, in the scales of the New Testament? Do you think the archangel Gabriel thinks anything the less of me, because I promptly and respectfully obey that old hunks in that particular instance? Who ain't a slave? Tell me that. Well, then, however the old sea-captains may order me about — however they may thump and punch me about, I have the satisfaction of knowing that it is all right; that everybody else is one way or other served in much the same way — either in a physical or metaphysical point of view, that is; and so the universal thump is passed round, and all hands should rub each other's shoulder-blades, and be content.
+
+And finally, what shall I say of the reasons for going a-whaling? Chief among them:
+
+- The overwhelming idea of the great whale himself — such a portentous and mysterious monster roused all my curiosity.
+- The undeliverable, nameless perils of the whale, and the attendants of the wondrous world of waters.
+- The tormenting, mild image of the ungraspable phantom of life, seen in all rivers and oceans.
+
+These were the things that finally drew me to the sea — and if they but knew it, almost all men cherish very nearly the same feelings towards the ocean with me.
 """
 
 SMALL_RELEASES = """\
@@ -154,39 +349,16 @@ Software wants to be shipped. The longer a change sits unmerged, the more it rot
 A release is a conversation with reality. Small releases keep the conversation lively.
 """
 
-CANVAS_BANNER = """\
-<canvas id="stars"></canvas>
-<script>
-(() => {
-  const c = document.getElementById("stars");
-  const ctx = c.getContext("2d");
-  const fit = () => { c.width = c.clientWidth; c.height = c.clientHeight; };
-  fit();
-  addEventListener("resize", fit);
-  const stars = Array.from({ length: 110 }, () => ({
-    x: Math.random(), y: Math.random(),
-    r: Math.random() * 1.4 + 0.3, v: Math.random() * 0.05 + 0.01,
-  }));
-  let prev = performance.now();
-  (function frame(now) {
-    if (!c.isConnected) return;
-    const dt = Math.min(now - prev, 100); prev = now;
-    ctx.fillStyle = "#0b0e1d";
-    ctx.fillRect(0, 0, c.width, c.height);
-    ctx.fillStyle = "#cdd6ff";
-    for (const s of stars) {
-      s.x = (s.x + s.v * dt / 1000) % 1;
-      ctx.beginPath();
-      ctx.arc(s.x * c.width, s.y * c.height, s.r, 0, 7);
-      ctx.fill();
-    }
-    requestAnimationFrame(frame);
-  })(prev);
-})();
-</script>
-"""
+ABOUT = """\
+This site runs on **Pagerite**: FastAPI + html5tagger + kanta, with content written in Markdown and rendered on the fly.
 
-BLOG_BANNER = '<div style="background: linear-gradient(100deg, #14243d, #3d2b6b 45%, #7c5cff 75%, #ff5c8a)"></div>'
+- [How to edit this site](/docs/editing)
+- [Markdown features](/docs/markdown/basics)
+- [The showcase](/showcase/gallery)
+- [![xkcd 2347: Dependency](https://imgs.xkcd.com/comics/dependency.png "xkcd 2347: Dependency"){width=240}](https://xkcd.com/2347/) — a small comic about small dependencies
+
+*Replace this page with whatever your site is about.*
+"""
 
 WAVES_SVG = """\
 <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 800 400">
@@ -231,33 +403,61 @@ DUNES_SVG = """\
 """
 
 #: path -> (title, markdown, {filename: bytes}, banner HTML, menu order,
-#: banner design). Banners are deliberately set only on select sub pages
-#: (not the front page), so the theme's default design shows elsewhere.
-#: Note there are deliberately no "docs" or "blog" landing pages: those
-#: labels are created without content, so they render a placeholder page
-#: and their nav links point at the first child (see views.first_leaf).
+#: banner design). Designs demonstrate inheritance: the "showcase" label
+#: picks "eyes" (all its pages show the critter), and the leaf
+#: "showcase/night-sky" overrides that with "stars". Elsewhere the active
+#: theme's own design shows.
+#: Note there are deliberately no "docs" or "showcase" landing pages:
+#: those labels are created without content, so they render a placeholder
+#: page and their nav links point at the first child (see
+#: views.first_leaf). "showcase" is seeded explicitly (empty markdown,
+#: which the seeder leaves as content=None) just to carry the design.
 PAGES: dict[str, tuple[str, str, dict[str, bytes], str, float, str | None]] = {
     "": ("Welcome", WELCOME, {"waves.svg": WAVES_SVG.encode()}, "", 1, None),
-    "about": ("About", ABOUT, {}, "", 2, None),
-    "docs/editing": (
-        "Writing Content",
-        EDITING,
-        {"shapes.svg": SHAPES_SVG.encode()},
+    "about": ("About", ABOUT, {}, "", 3, None),
+    "docs/editing": ("Editing This Site", EDITING, {}, "", 1, None),
+    "docs/markdown/basics": (
+        "Basics",
+        MD_BASICS,
+        {},
         "",
         1,
         None,
     ),
-    "blog/the-long-read": (
-        "The Long Read",
-        LONG_READ,
-        {"dunes.svg": DUNES_SVG.encode()},
-        BLOG_BANNER,
+    "docs/markdown/extensions": ("Extensions", MD_EXTENSIONS, {}, "", 2, None),
+    "docs/markdown/images-and-layout": (
+        "Images and Layout",
+        MD_LAYOUT,
+        {"shapes.svg": SHAPES_SVG.encode(), "dunes.svg": DUNES_SVG.encode()},
+        "",
+        3,
+        None,
+    ),
+    "showcase": ("Showcase", "", {}, "", 4, "eyes"),
+    "showcase/gallery": (
+        "Gallery",
+        GALLERY,
+        {
+            "great-wave.jpg": _asset("great-wave.jpg"),
+            "shapes.svg": SHAPES_SVG.encode(),
+            "waves.svg": WAVES_SVG.encode(),
+        },
+        "",
         1,
         None,
     ),
-    # The eyes critter is a named banner design (pagerite/themes/eyes/),
-    # not code embedded in the page.
-    "blog/notes-on-urls": ("Notes on URLs", NOTES_ON_URLS, {}, "", 2, "eyes"),
-    "blog/canvas-nights": ("Canvas Nights", CANVAS_NIGHTS, {}, CANVAS_BANNER, 3, None),
-    "blog/small-releases": ("Small Releases", SMALL_RELEASES, {}, "", 4, None),
+    "showcase/loomings": (
+        "Loomings — a Long Read",
+        LOOMINGS,
+        {
+            "dunes.svg": DUNES_SVG.encode(),
+            "md-whale.jpg": _asset("md-whale.jpg"),
+            "md-chase.jpg": _asset("md-chase.jpg"),
+        },
+        "",
+        2,
+        None,
+    ),
+    "showcase/night-sky": ("Night Sky", NIGHT_SKY, {}, "", 3, "stars"),
+    "showcase/small-releases": ("Small Releases", SMALL_RELEASES, {}, "", 4, None),
 }

pagerite/themes/corporate/banner.svg

@@ -1,4 +1,4 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1600 360" preserveAspectRatio="xMidYMid slice">
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1600 360" preserveAspectRatio="xMidYMax slice">
   <defs>
     <linearGradient id="cbg" x1="0" y1="0" x2="0" y2="1">
       <stop offset="0" class="cb-bg0"/>

pagerite/themes/nitro/banner.svg

@@ -1,4 +1,4 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1600 360" preserveAspectRatio="xMidYMid slice">
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1600 360" preserveAspectRatio="xMidYMax slice">
   <defs>
     <linearGradient id="flare" x1="0" y1="0" x2="1" y2="0">
       <stop offset="0" stop-color="#ff6a00"/>

pagerite/themes/purple/banner.svg

@@ -1,4 +1,4 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 300" preserveAspectRatio="xMidYMid slice">
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 300" preserveAspectRatio="xMidYMax slice">
   <defs>
     <linearGradient id="sky" x1="0" y1="0" x2="0" y2="1">
       <stop offset="0" stop-color="#2b1b4d"/>

pagerite/themes/stars/banner.css

@@ -0,0 +1,7 @@
+/* Stars banner design: a drifting starfield (banner.html — canvas + script
+   inlined by the backend into #page-banner). Fixed-height stage matching
+   the canvas. */
+
+#banner {
+  height: 240px;
+}

pagerite/themes/stars/banner.html

@@ -0,0 +1,52 @@
+<canvas id="stars"></canvas>
+<style>
+  #stars {
+    width: 100%;
+    height: 240px;
+    display: block;
+  }
+</style>
+<script><!--
+(() => {
+  const c = document.getElementById('stars')
+  const ctx = c.getContext('2d')
+  const DPR = devicePixelRatio || 1
+
+  const fit = () => {
+    const w = Math.max(1, c.clientWidth)
+    const h = Math.max(1, c.clientHeight)
+    c.width = Math.round(w * DPR)
+    c.height = Math.round(h * DPR)
+    ctx.setTransform(DPR, 0, 0, DPR, 0, 0)
+  }
+
+  fit()
+  addEventListener('resize', fit)
+
+  const stars = Array.from({ length: 110 }, () => ({
+    x: Math.random(),
+    y: Math.random(),
+    r: Math.random() * 1.4 + 0.3,
+    v: Math.random() * 0.05 + 0.01
+  }))
+
+  let prev = performance.now()
+  ;(function frame(now) {
+    if (!c.isConnected) return
+    const w = c.clientWidth
+    const h = c.clientHeight
+    const dt = Math.min(now - prev, 100)
+    prev = now
+    ctx.fillStyle = '#0b0e1d'
+    ctx.fillRect(0, 0, w, h)
+    ctx.fillStyle = '#cdd6ff'
+    for (const s of stars) {
+      s.x = (s.x + (s.v * dt) / 1000) % 1
+      ctx.beginPath()
+      ctx.arc(s.x * w, s.y * h, s.r, 0, 7)
+      ctx.fill()
+    }
+    requestAnimationFrame(frame)
+  })(prev)
+})()
+</script>

pagerite/themes/summer/banner.svg

@@ -1,6 +1,6 @@
 <svg xmlns="http://www.w3.org/2000/svg"
      viewBox="0 0 1600 320"
-     preserveAspectRatio="xMidYMid slice">
+     preserveAspectRatio="xMidYMax slice">
 
   <defs>
     <linearGradient id="sky" x1="0" y1="0" x2="0" y2="1">

pagerite/views.py

@@ -15,8 +15,10 @@ own URL renders a placeholder page (render_category).
 """
 
 from pathlib import Path
+from html import unescape
 import json
 import os
+import re
 
 from html5tagger import HTML, Document, E, Template
 
@@ -108,56 +110,139 @@ def _editor_css_url(vite_url: str | None) -> str | None:
     return None
 
 
+def _inline_asset(url: str) -> str:
+    """Read a served asset's content for inlining into the page (prod only).
+
+    Handles build assets (``/_assets/...`` from the Vite build) and theme
+    files (``/_themes/{name}/...`` from pagerite/themes/).
+    """
+    if url.startswith("/_themes/"):
+        name, _, file = url.removeprefix("/_themes/").partition("/")
+        if _valid_name(name) and _valid_name(file):
+            return (THEMES / name / file).read_text()
+        raise ValueError(f"not a theme asset: {url}")
+    return (BUILD / url.lstrip("/")).read_text()
+
+
+def _inline_script(url: str) -> str:
+    """Read a built JS bundle for inlining (prod only).
+
+    Inline modules resolve relative imports against the document URL, not
+    the bundle's directory, so rewrite the build's relative chunk
+    specifiers ("./chunk.js") to absolute /_assets/ paths.
+    """
+    js = _inline_asset(url)
+    for chunk in _manifest().values():
+        file = chunk.get("file", "")
+        if file.endswith(".js"):
+            js = js.replace(f'"./{file.rsplit("/", 1)[-1]}"', f'"/{file}"')
+    return js
+
+
 def _layout(
     modules: list[str] = (),
+    stylesheets: list[str] = (),
     custom_css: str = "",
     theme: str = "",
     banner_design: str = "",
     favicon: str = "",
+    social: dict[str, str] | None = None,
 ) -> Template:
-    """Page layout template with standard asset URLs and ES-module scripts.
+    """Page layout template with standard assets and ES-module scripts.
 
-    Stylesheets use ``blocking="render"`` so the browser waits for them before
-    showing the page, avoiding a flash of unstyled content. Order matters and
-    is fixed: base (Vite build, absent in dev where Vite injects it from JS),
-    theme and banner design (backend-served from pagerite/themes/), then the
-    user's custom CSS last so it always wins.
+    In dev (PAGERITE_VITE_URL set) assets are linked from the Vite dev
+    server and stylesheets use ``blocking="render"`` so the browser waits
+    for them before showing the page, avoiding a flash of unstyled content.
+    In production all page assets are inlined into the document: stylesheets
+    become ``<style>`` elements and module scripts inline ``<script>``s, so
+    a page loads with no asset round trips. The on-demand bundles (editor,
+    analytics) stay external in both modes.
+
+    Order matters and is fixed: base (Vite build, absent in dev where Vite
+    injects it from JS), theme and banner design (from pagerite/themes/),
+    entry-specific stylesheets (e.g. overlayscrollbars.css), then the user's
+    custom CSS last so it always wins.
 
     In dev, pagerite.js re-appends the backend-rendered theme/design links
     (and the custom CSS) after the Vite-injected base styles, keeping this
     order intact.
+
+    ``social`` maps meta keys to contents: ``og:*``/``article:*`` go out as
+    property attributes, everything else (description, twitter:*) as name.
     """
     doc = Document(E.Title, lang="en")
     # Responsive layout (see the 48rem breakpoint in pagerite.css) needs
     # the real device width, not the default 980px layout viewport.
     doc.meta(name="viewport", content="width=device-width, initial-scale=1")
+    for key, value in (social or {}).items():
+        if value:
+            if key.startswith(("og:", "article:")):
+                doc.meta(property=key, content=value)
+            elif key == "canonical":
+                doc.link(rel="canonical", href=value)
+            else:
+                doc.meta(name=key, content=value)
     # A custom favicon (from the site editor) is linked explicitly; without
     # one, browsers fall back to the build's /favicon.ico by convention.
     if favicon:
         doc.link(rel="icon", href=f"/_f/{favicon}", id="pagerite-favicon")
-    # Editor asset URLs for pagerite.js, which injects the 🖊️ edit pens
-    # itself once it has validated the session (pages render identically
-    # for everyone; editing is gated by the auth proxy in front of /_api).
-    script, editor_css = _editor_assets()
-    doc.meta(name="pagerite:editor-src", content=script[-1])
-    if editor_css:
-        doc.meta(name="pagerite:editor-css", content=editor_css)
-    # Stylesheet links carry stable ids so the site editor's hot swap can
-    # keep each sheet at its rendered position (see swapRegions).
+    # Asset URLs for the on-demand bundles (editor, analytics) for
+    # pagerite.js, which injects the 🖊️ edit pens itself once it has
+    # validated the session (pages render identically for everyone; editing
+    # is gated by the auth proxy in front of /_api). Dev passes the Vite
+    # dev-server URLs as meta tags (Vite serves the modules and injects
+    # their CSS for hot reloads); production inlines all page assets and
+    # carries the on-demand URLs in one JSON script instead.
     vite_url = os.environ.get("PAGERITE_VITE_URL")
+    editor_scripts, editor_css = _editor_assets()
+    config = {
+        "pagerite:editor-src": editor_scripts[-1],
+        "pagerite:analytics-src": _analytics_assets()[0][0],
+    }
+    if editor_css:
+        config["pagerite:editor-css"] = editor_css
+    if vite_url:
+        for key, value in config.items():
+            doc.meta(name=key, content=value)
+    else:
+        # Inert JSON script; URLs never contain "</", but stay safe.
+        doc.script(
+            HTML(json.dumps(config).replace("</", "<\\/")),
+            type="application/json",
+            id="pagerite-assets",
+        )
+    # Stylesheets carry stable ids so the fetch-navigation and the site
+    # editor's hot swap can sync <head> positionally (see swapdoc.js).
+    # Production inlines the CSS as <style> elements: one less round trip
+    # per sheet, and fetch-navigation can carry them across swaps whole.
     sheets = [
         ("pagerite-base", _base_css_url(vite_url)),
         ("pagerite-theme", _theme_css_url(theme)),
         ("pagerite-banner", _banner_css_url(banner_design)),
     ]
     for id_, url in sheets:
-        if url:
+        if not url:
+            continue
+        if vite_url:
             doc.link(rel="stylesheet", href=url, blocking="render", id=id_)
+        else:
+            doc.style(HTML(_inline_asset(url)), id=id_)
+    for url in stylesheets:
+        if vite_url:
+            doc.link(rel="stylesheet", href=url, blocking="render")
+        else:
+            # Id from the file stem minus the content hash, so the head
+            # sync can match sheets across pages (e.g. the analytics sheet
+            # exists on /_a only and is added/removed on swaps).
+            stem = url.rsplit("/", 1)[-1].removesuffix(".css")
+            name = re.sub(r"-[A-Za-z0-9_-]{8}$", "", stem)
+            doc.style(HTML(_inline_asset(url)), id=f"pagerite-css-{name}")
     for src in modules:
-        doc.script(src=src, type="module")
+        if vite_url:
+            doc.script(src=src, type="module")
     if custom_css.strip():
         doc.style(custom_css, id="pagerite-user")
-    return Template(
+    body = (
         doc
         .header(
             E.div(E.Banner, id="page-banner"),
@@ -170,8 +255,23 @@ def _layout(
             E.main(E.Main, id="main"),
             id="content",
         )
-        .footer(None),  # kept empty for now; zero-height (see pagerite.css)
+        .footer(None)  # kept empty for now; zero-height (see pagerite.css)
     )
+    if not vite_url:
+        # Inline the bundles at the end of the body: module scripts are
+        # deferred anyway, and the page can render before they execute.
+        # Escape "</script" so it cannot terminate the element early (only
+        # ever occurs inside string literals, where the backslash escape is
+        # a no-op).
+        for src in modules:
+            js = re.sub(r"</script", r"<\\/script", _inline_script(src), flags=re.I)
+            # Stable id from the file stem minus the content hash; the
+            # analytics page's script (pagerite-js-analytics) is found and
+            # re-created by pagerite.js on fetch-navigations to /_a.
+            stem = src.rsplit("/", 1)[-1].removesuffix(".js")
+            name = re.sub(r"-[A-Za-z0-9_-]{8}$", "", stem)
+            body.script(HTML(js), type="module", id=f"pagerite-js-{name}")
+    return Template(body)
 
 
 def _brand_link(brand: str, brand_html: str = "") -> HTML:
@@ -426,6 +526,87 @@ def page_content(menu: dict[str, Node], path: str) -> HTML:
     return HTML(str(doc))
 
 
+_FIRST_P = re.compile(r"<p[^>]*>(.*?)</p>", re.S)
+_TAG = re.compile(r"<[^>]+>")
+_IMG_TAG = re.compile(r"<img\b[^>]*>")
+_VIDEO_TAG = re.compile(r"<video\b[^>]*>")
+_ATTR_SRC = re.compile(r'src="([^"]+)"')
+_ATTR_CLASS = re.compile(r'class="([^"]*)"')
+
+
+def _share_media(html: str, base_url: str) -> tuple[str, str]:
+    """(image, video) share URLs from the rendered article.
+
+    Image preference: an image with class "hero" (author override, may
+    appear anywhere in the article), then the first raster image (SVGs
+    rasterize poorly or not at all on many social scrapers), then the
+    first SVG. Video: the first <video> — og:video is in the OGP spec and
+    honored mainly by Facebook; X/Twitter ignores it. Absolute URLs are
+    built from the request base, scrapers cannot use relative ones.
+    """
+    if not base_url:
+        return "", ""
+
+    def absolute(src: str) -> str:
+        src = unescape(src)
+        return src if src.startswith(("http://", "https://")) else f"{base_url}{src}"
+
+    hero = raster = svg = video = ""
+    for tag in _IMG_TAG.findall(html):
+        if not (src := _ATTR_SRC.search(tag)):
+            continue
+        src = src.group(1)
+        cls = _ATTR_CLASS.search(tag)
+        if cls and "hero" in cls.group(1).split():
+            hero = src
+            break
+        if src.lower().split("?")[0].endswith(".svg"):
+            svg = svg or src
+        else:
+            raster = raster or src
+            # Keep scanning: a later hero still wins.
+    for tag in _VIDEO_TAG.findall(html):
+        if m := _ATTR_SRC.search(tag):
+            video = m.group(1)
+            break
+    image = hero or raster or svg
+    return (absolute(image) if image else "", absolute(video) if video else "")
+
+
+def _social_meta(
+    node: Node, path: str, title: str, html: str, brand: str, base_url: str,
+) -> dict[str, str]:
+    """Open Graph/Twitter/SEO meta tags for a content page.
+
+    Heuristics over the rendered article: the description is the first
+    paragraph's text (truncated at ~200 chars on a word boundary), the
+    share image the article's first <img> — authors lead with their most
+    representative figure. Absolute URLs are built from the request's base
+    (social scrapers cannot use relative ones).
+    """
+    url = f"{base_url}/{path}" if base_url else ""
+    m = _FIRST_P.search(html)
+    text = unescape(_TAG.sub("", m.group(1) if m else ""))
+    text = " ".join(text.split())
+    if len(text) > 200:
+        text = text[:200].rsplit(" ", 1)[0] + "…"
+    image, video = _share_media(html, base_url)
+    return {
+        "description": text,
+        "canonical": url,
+        "og:type": "article",
+        "og:title": title,
+        "og:description": text,
+        "og:url": url,
+        "og:site_name": brand,
+        "og:image": image,
+        "og:video": video,
+        "article:published_time": node.created.isoformat(),
+        "article:modified_time": node.modified.isoformat(),
+        "twitter:card": "summary_large_image" if image else "summary",
+    }
+
+
 def render_page(
     menu: dict[str, Node],
     path: str,
@@ -434,18 +615,24 @@ def render_page(
     theme: str = "",
     favicon: str = "",
     brand_html: str = "",
+    base_url: str = "",
 ) -> str:
     """Render a full HTML page for the slug path."""
     node = resolve(menu, path)[-1]
     title = _title(path.rpartition("/")[2], node)
+    main = page_content(menu, path)
+    social = _social_meta(node, path, title, str(main), brand, base_url)
     return str(
-        _layout(_page_assets(), custom_css, theme, banner_design(menu, path, theme), favicon)(
+        _layout(
+            *_page_assets(), custom_css, theme, banner_design(menu, path, theme),
+            favicon, social,
+        )(
             Title=f"{title} – {brand}" if brand else title,
             Brand=_brand_link(brand, brand_html),
             Nav=nav_html(menu, path),
             Sidebar=sidebar_html(menu, path),
             Banner=banner_html(menu, path, theme),
-            Main=page_content(menu, path),
+            Main=main,
         ),
     )
 
@@ -476,7 +663,7 @@ def render_category(
         else:
             doc.p("This section has no page of its own yet.")
     return str(
-        _layout(_page_assets(), custom_css, theme, banner_design(menu, path, theme), favicon)(
+        _layout(*_page_assets(), custom_css, theme, banner_design(menu, path, theme), favicon)(
             Title=f"{title} – {brand}" if brand else title,
             Brand=_brand_link(brand, brand_html),
             Nav=nav_html(menu, path),
@@ -502,7 +689,7 @@ def render_not_found(
         doc.h1("Not Found")
         doc.p(f"No article at /{path}. If there was before, it may have been deleted.")
     return str(
-        _layout(_page_assets(), custom_css, theme, banner_design(menu, path, theme), favicon)(
+        _layout(*_page_assets(), custom_css, theme, banner_design(menu, path, theme), favicon)(
             Title=f"Not Found – {brand}" if brand else "Not Found",
             Brand=_brand_link(brand, brand_html),
             Nav=nav_html(menu, path),
@@ -513,19 +700,23 @@ def render_not_found(
     )
 
 
-def _page_assets() -> list[str]:
-    """Script URLs for public pages (pagerite entry).
+def _page_assets() -> tuple[list[str], list[str]]:
+    """Script and stylesheet URLs for public pages (pagerite entry).
 
     Dev mode loads the entry from the Vite dev server; production uses
-    the Vite build manifest to resolve the hashed asset names.
+    the Vite build manifest to resolve the hashed asset names. CSS imported
+    by the entry (e.g. overlayscrollbars.css) is extracted by Vite and must
+    be linked separately.
     """
     vite_url = os.environ.get("PAGERITE_VITE_URL")
     if vite_url:
-        return [f"{vite_url}/src/pagerite.js"]
+        return [f"{vite_url}/src/pagerite.js"], []
     if "page" not in _asset_cache:
         manifest = _manifest()
         entry = manifest["src/pagerite.js"]
-        _asset_cache["page"] = [f"/{entry['file']}"]
+        scripts = [f"/{entry['file']}"]
+        stylesheets = [f"/{css}" for css in entry.get("css", [])]
+        _asset_cache["page"] = scripts, stylesheets
     return _asset_cache["page"]
 
 
@@ -543,3 +734,61 @@ def _editor_assets() -> tuple[list[str], str | None]:
         entry = manifest["src/main.js"]
         _asset_cache["editor"] = [f"/{entry['file']}"], _editor_css_url(None)
     return _asset_cache["editor"]
+
+
+def _analytics_assets() -> tuple[list[str], list[str]]:
+    """Script and stylesheet URLs for the analytics page entry."""
+    vite_url = os.environ.get("PAGERITE_VITE_URL")
+    if vite_url:
+        return [f"{vite_url}/src/analytics-main.js"], []
+    if "analytics" not in _asset_cache:
+        manifest = _manifest()
+        entry = manifest["src/analytics-main.js"]
+        scripts = [f"/{entry['file']}"]
+        stylesheets = [f"/{css}" for css in entry.get("css", [])]
+        _asset_cache["analytics"] = scripts, stylesheets
+    return _asset_cache["analytics"]
+
+
+def render_analytics(
+    menu: dict[str, Node],
+    brand: str = SITE_NAME,
+    custom_css: str = "",
+    theme: str = "",
+    favicon: str = "",
+    brand_html: str = "",
+) -> str:
+    """Render the analytics viewer as a normal page at /_a.
+
+    The analytics entry is inlined into this page only (prod) or loaded
+    from the Vite dev server (dev); its stylesheet rides along in <head>
+    so fetch-navigations can sync it into the live document. The initial
+    range is not rendered in: the client takes it from the URL hash or
+    derives it from the analytics data itself.
+    """
+    page_scripts, page_stylesheets = _page_assets()
+    analytics_scripts, analytics_stylesheets = _analytics_assets()
+    scripts = page_scripts + analytics_scripts
+    stylesheets = page_stylesheets + analytics_stylesheets
+    doc = E.article
+    with doc:
+        # .wide: the dashboard breaks out of the article column to the full
+        # viewport width, like wide figures (see the .wide rules).
+        doc.div(id="analytics-app", class_="wide")
+    return str(
+        _layout(
+            scripts,
+            stylesheets,
+            custom_css,
+            theme,
+            banner_design(menu, "_a", theme),
+            favicon,
+        )(
+            Title=f"Analytics – {brand}" if brand else "Analytics",
+            Brand=_brand_link(brand, brand_html),
+            Nav=nav_html(menu, "_a"),
+            Sidebar=sidebar_html(menu, "_a"),
+            Banner=banner_html(menu, "_a", theme),
+            Main=HTML(str(doc)),
+        ),
+    )

pyproject.toml

@@ -20,10 +20,14 @@ dependencies = [
     "fastapi-vue>=1.3.1",
     "fastapi[standard]>=0.141.1",
     "html5tagger>=2.0.0",
+    "httpx>=0.28.1",
     "kanta>=0.8.1",
     "markdown-it-py>=4.2.0",
+    "maxminddb>=3.1.1",
     "mdit-py-plugins>=0.6.1",
     "pygments>=2.20.0",
+    "ua-parser>=1.0.2",
+    "zstandard>=0.25.0",
 ]
 
 [project.scripts]
@@ -33,9 +37,7 @@ pagerite = "pagerite.__main__:main"
 Repository = "https://git.zi.fi/LeoVasanko/pagerite"
 
 [dependency-groups]
-dev = [
-    "httpx>=0.28.1",
-]
+dev = []
 
 [tool.hatch.version]
 source = "vcs"
@@ -45,8 +47,9 @@ packages = ["pagerite"]
 
 [tool.hatch.build]
 # `only-packages` drops directories without an __init__.py, so the theme
-# files must be force-included as artifacts (like the frontend build).
-artifacts = ["pagerite/frontend-build", "pagerite/themes"]
+# files and seed image assets must be force-included as artifacts (like
+# the frontend build).
+artifacts = ["pagerite/frontend-build", "pagerite/themes", "pagerite/seed-assets"]
 only-packages = true
 
 [tool.hatch.build.targets.sdist.hooks.custom]

scripts/devserver.py

@@ -19,8 +19,8 @@ from devutil import (
     setup_vite,
 )
 
-DEFAULT_VITE_PORT = 3100
-DEFAULT_DEV_PORT = 3200
+DEFAULT_VITE_PORT = 8200
+DEFAULT_DEV_PORT = 8210
 HEALTH = "/?from=devserver.py"
 
 

scripts/fake_traffic.py

@@ -0,0 +1,941 @@
+#!/usr/bin/env -S uv run --script
+# /// script
+# requires-python = ">=3.14"
+# dependencies = [
+#     "httpx>=0.28.1",
+#     "playwright>=1.45.0",
+# ]
+# ///
+"""Generate fake browser visits, crawler hits, and abuse scans for a Pagerite site.
+
+Browser sessions (ordinary users) come from realistic residential IPv4 and IPv6
+addresses and stay mostly stable; an IPv6 host part may rotate once mid-session,
+and an IPv4 session may switch to another residential address.  Crawler hits come
+from datacenter IPs, with each crawler profile paired to a matching provider IP
+when possible.  Abuse scanners fire bursts of vulnerability probes from pinned
+datacenter IPs.
+
+Run against a local dev server, e.g.:
+
+    uv run scripts/fake_traffic.py http://localhost:3200
+
+Repeat whenever you want more traffic; each run appends new events to the
+site's analytics file.
+"""
+
+from __future__ import annotations
+
+import argparse
+import logging
+import random
+import sys
+import time
+from collections.abc import Sequence
+from dataclasses import dataclass
+from datetime import UTC, datetime
+from typing import Any
+from urllib.parse import urlencode, urljoin, urlparse
+
+import httpx
+
+logging.basicConfig(level=logging.INFO, format="%(message)s")
+logger = logging.getLogger("fake-traffic")
+
+
+@dataclass(frozen=True)
+class BrowserProfile:
+    name: str
+    user_agent: str
+    accept_language: str
+    viewport: tuple[int, int]
+
+
+@dataclass(frozen=True)
+class CrawlerProfile:
+    name: str
+    user_agent: str
+    ip: str
+
+
+BROWSER_PROFILES: list[BrowserProfile] = [
+    BrowserProfile(
+        "chrome-desktop",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+        "(KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36",
+        "en-US,en;q=0.9",
+        (1366, 768),
+    ),
+    BrowserProfile(
+        "safari-desktop",
+        "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 "
+        "(KHTML, like Gecko) Version/17.5 Safari/605.1.15",
+        "en-GB,en;q=0.9",
+        (1440, 900),
+    ),
+    BrowserProfile(
+        "firefox-desktop",
+        "Mozilla/5.0 (X11; Linux x86_64; rv:130.0) Gecko/20100101 Firefox/130.0",
+        "en-CA,en;q=0.8,fr;q=0.5",
+        (1920, 1080),
+    ),
+    BrowserProfile(
+        "chrome-mobile",
+        "Mozilla/5.0 (Linux; Android 14; SM-S918B) AppleWebKit/537.36 "
+        "(KHTML, like Gecko) Chrome/128.0.0.0 Mobile Safari/537.36",
+        "es-ES,es;q=0.9",
+        (390, 844),
+    ),
+]
+
+CRAWLER_PROFILES: list[CrawlerProfile] = [
+    CrawlerProfile(
+        "googlebot",
+        "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; +http://www.google.com/bot.html) Chrome/128.0.0.0 Safari/537.36",
+        "66.249.64.66",                         # US, Google
+    ),
+    CrawlerProfile(
+        "bingbot",
+        "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm) Chrome/128.0.0.0 Safari/537.36",
+        "40.77.167.0",                          # US, Microsoft
+    ),
+    CrawlerProfile(
+        "duckduckbot",
+        "DuckDuckBot/1.1; (+http://duckduckgo.com/duckduckbot.html)",
+        "95.217.0.1",                           # Germany, Hetzner VPS
+    ),
+    CrawlerProfile(
+        "curl",
+        "curl/8.5.0",
+        "139.162.0.1",                          # Singapore, Linode VPS
+    ),
+]
+
+# Residential IPv4 addresses and IPv6 /64 prefixes used for ordinary browser
+# sessions.  IPv6 entries keep the network part stable and randomise only the
+# host part; the host may rotate once mid-session.
+RESIDENTIAL_SOURCE_IPS: list[str] = [
+    # Residential IPv4
+    "91.154.140.209",                       # Finland, Elisa
+    "84.143.145.207",                       # Germany, Deutsche Telekom
+    "220.165.255.254",                      # China, Chinanet / China Telecom
+    "84.235.83.162",                        # Saudi Arabia, SaudiNet / STC
+    # Residential IPv6 /64 prefixes
+    "2a02:8109:ac82:6f0c::/64",             # Germany, Deutsche Telekom
+    "240e:45d:1e60:5b0::/64",               # China, China Telecom
+    "2409:8904:6720:4123::/64",             # China, China Unicom
+]
+
+# Concrete datacenter IPs used for abuse scanner bursts.  They stay pinned for
+# the whole scan burst.
+# Index 0 randomises its UA per request, index 1 uses a fixed browser UA,
+# and index 2 uses a fixed crawler UA.
+ABUSE_SOURCE_IPS: list[str] = [
+    "45.63.0.12",                           # US, Vultr VPS
+    "138.197.0.89",                         # US, DigitalOcean / Cloudways
+    "2a01:4f8:0:2::1234",                   # Germany, Hetzner VPS
+]
+
+# Paths commonly probed by attackers looking for exposed config, admin panels,
+# version control, credentials, backups, or debug endpoints.
+SUSPICIOUS_PATHS: list[str] = [
+    "/.env",
+    "/env",
+    "/.env.local",
+    "/env.development",
+    "/config",
+    "/config.json",
+    "/config.yaml",
+    "/config.yml",
+    "/configuration.json",
+    "/configuration.yaml",
+    "/configuration.yml",
+    "/settings.json",
+    "/settings.yaml",
+    "/settings.yml",
+    "/app.config",
+    "/appsettings.json",
+    "/appsettings.Development.json",
+    "/credentials",
+    "/credentials.json",
+    "/secrets",
+    "/secrets.json",
+    "/.aws/credentials",
+    "/.ssh/id_rsa",
+    "/id_rsa",
+    "/id_rsa.pub",
+    "/known_hosts",
+    "/sftp-config.json",
+    "/admin",
+    "/administrator",
+    "/adminer.php",
+    "/login",
+    "/signin",
+    "/auth/login",
+    "/api/login",
+    "/api/.env",
+    "/api/config",
+    "/api/v1/config",
+    "/api/v2/config",
+    "/webhook",
+    "/webhooks",
+    "/callback",
+    "/proxy",
+    "/image",
+    "/images",
+    "/preview",
+    "/download",
+    "/downloads",
+    "/log",
+    "/logs",
+    "/debug",
+    "/trace",
+    "/phpinfo.php",
+    "/info.php",
+    "/phpmyadmin",
+    "/pma",
+    "/myadmin",
+    "/phpMyAdmin",
+    "/wp-admin",
+    "/wp-login.php",
+    "/wp-config.php",
+    "/xmlrpc.php",
+    "/wp-json/wp/v2/users",
+    "/.git/config",
+    "/.git/HEAD",
+    "/git/config",
+    "/swagger-ui.html",
+    "/v2/api-docs",
+    "/actuator/env",
+    "/actuator/health",
+    "/actuator/configprops",
+    "/server-status",
+    "/.htaccess",
+    "/web.config",
+    "/package.json",
+    "/composer.json",
+    "/vendor/autoload.php",
+    "/docker-compose.yml",
+    "/Dockerfile",
+    "/manage",
+    "/console",
+    "/manager",
+    "/manager/html",
+    "/metrics",
+    "/prometheus",
+    "/healthz",
+    "/_api",
+    "/api",
+    "/api/v1/",
+    "/api/v2/",
+    "/graphql",
+    "/query",
+    "/feed",
+    "/rss",
+    "/_debug",
+    "/test",
+    "/testing",
+    "/tmp",
+    "/temp",
+    "/backup",
+    "/backups",
+    "/dump",
+    "/dumps",
+    "/sql",
+    "/db",
+    "/database",
+    "/dump.sql",
+    "/backup.sql",
+    "/db.sql",
+    "/backup.zip",
+    "/backup.tar.gz",
+    "/site.zip",
+    "/site.tar.gz",
+    "/source.zip",
+    "/src.zip",
+    "/upload",
+    "/uploads",
+    "/import",
+    "/export",
+    "/token",
+    "/tokens",
+    "/oauth",
+    "/oauth2",
+    "/openid",
+    "/jwks",
+    "/keys",
+    "/key",
+    "/private",
+    "/public",
+]
+
+# Realistic external referers.  Most sessions arrive with a generic referer;
+# a subset carries matching UTM tags on the landing URL.
+PLAIN_REFERRERS: list[str] = [
+    "https://example.com/",
+    "https://somedomain.com/",
+    "https://another-site.org/",
+    "https://friend-site.net/",
+]
+
+# (referer origin, utm parameter dict) pairs used for tagged traffic.
+TAGGED_REFERRERS: list[tuple[str, dict[str, str]]] = [
+    ("https://chatgpt.com/", {"utm_source": "chatgpt.com"}),
+    ("https://www.google.com/", {"utm_source": "google", "utm_medium": "organic"}),
+    ("https://twitter.com/", {"utm_source": "twitter", "utm_medium": "social"}),
+    ("https://www.linkedin.com/", {"utm_source": "linkedin", "utm_medium": "social"}),
+    ("https://github.com/", {"utm_source": "github", "utm_medium": "referral"}),
+    ("https://news.ycombinator.com/", {"utm_source": "hackernews", "utm_medium": "referral"}),
+    ("https://www.reddit.com/", {"utm_source": "reddit", "utm_medium": "social"}),
+    ("https://medium.com/", {"utm_source": "medium", "utm_medium": "referral"}),
+    ("https://www.producthunt.com/", {"utm_source": "producthunt", "utm_medium": "referral"}),
+]
+
+# Fraction of referered sessions that also carry UTM tags.
+UTM_RATE = 0.25
+
+# Innocent-looking paths that do not exist on a Pagerite site.  Hitting many of
+# these from a single IP is itself a telltale of a spray-and-pray scanner.
+NORMAL_404_PATHS: list[str] = [
+    "/about",
+    "/about-us",
+    "/services",
+    "/products",
+    "/contact",
+    "/contact-us",
+    "/team",
+    "/careers",
+    "/jobs",
+    "/pricing",
+    "/features",
+    "/demo",
+    "/trial",
+    "/docs",
+    "/documentation",
+    "/api-docs",
+    "/support",
+    "/help",
+    "/faq",
+    "/knowledge-base",
+    "/terms",
+    "/terms-of-service",
+    "/privacy",
+    "/privacy-policy",
+    "/legal",
+    "/blog",
+    "/news",
+    "/articles",
+    "/press",
+    "/events",
+    "/webinars",
+    "/podcast",
+    "/videos",
+    "/resources",
+    "/whitepapers",
+    "/case-studies",
+    "/customers",
+    "/clients",
+    "/testimonials",
+    "/reviews",
+    "/partners",
+    "/integrations",
+    "/api-reference",
+    "/developers",
+    "/status",
+    "/security",
+    "/trust",
+    "/compliance",
+    "/gdpr",
+    "/ccpa",
+    "/sitemap",
+    "/archive",
+    "/tags",
+    "/categories",
+    "/search",
+    "/users",
+    "/accounts",
+    "/dashboard",
+    "/profile",
+    "/settings",
+    "/preferences",
+    "/notifications",
+    "/messages",
+    "/inbox",
+    "/calendar",
+    "/reports",
+    "/analytics",
+    "/billing",
+    "/invoice",
+    "/orders",
+    "/cart",
+    "/checkout",
+    "/store",
+    "/shop",
+    "/home",
+    "/main",
+    "/start",
+    "/welcome",
+    "/intro",
+    "/overview",
+    "/summary",
+    "/portfolio",
+    "/projects",
+    "/work",
+    "/solutions",
+]
+
+ABUSE_USER_AGENTS: list[str] = [
+    # Desktop browsers
+    "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
+    "(KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36",
+    "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 "
+    "(KHTML, like Gecko) Version/17.5 Safari/605.1.15",
+    "Mozilla/5.0 (X11; Linux x86_64; rv:130.0) Gecko/20100101 Firefox/130.0",
+    "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0",
+    "Mozilla/5.0 (Linux; Android 14; SM-S918B) AppleWebKit/537.36 "
+    "(KHTML, like Gecko) Chrome/128.0.0.0 Mobile Safari/537.36",
+    "Mozilla/5.0 (iPhone; CPU iPhone OS 17_5 like Mac OS X) AppleWebKit/605.1.15 "
+    "(KHTML, like Gecko) Version/17.5 Mobile/15E148 Safari/604.1",
+    # Well-known crawlers / bots
+    "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Googlebot/2.1; "
+    "+http://www.google.com/bot.html) Chrome/128.0.0.0 Safari/537.36",
+    "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; bingbot/2.0; "
+    "+http://www.bing.com/bingbot.htm) Chrome/128.0.0.0 Safari/537.36",
+    "Mozilla/5.0 (compatible; DuckDuckBot/1.1; +http://duckduckgo.com/duckduckbot.html)",
+    "Mozilla/5.0 (compatible; Baiduspider/2.0; +http://www.baidu.com/search/spider.html)",
+    "Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 "
+    "(KHTML, like Gecko) Chrome/128.0.0.0 Mobile Safari/537.36 "
+    "(compatible; Googlebot/2.1; +http://www.google.com/bot.html)",
+    "Mozilla/5.0 (compatible; YandexBot/3.0; +http://yandex.com/bots)",
+    "Mozilla/5.0 (compatible; DotBot/1.2; +https://opensiteexplorer.org/dotbot; help@moz.com)",
+    "Mozilla/5.0 (compatible; SemrushBot/7~bl; +http://www.semrush.com/bot.html)",
+    "Mozilla/5.0 (compatible; AhrefsBot/7.0; +http://ahrefs.com/robot/)",
+    # Social / service fetchers
+    "facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)",
+    "Twitterbot/1.0",
+    "LinkedInBot/1.0 (compatible; Mozilla/5.0; Apache-HttpClient +http://www.linkedin.com)",
+    "Slackbot-LinkExpanding 1.0 (+https://api.slack.com/robots)",
+    "WhatsApp/2.23.20.0",
+    # Command-line / library clients
+    "curl/8.5.0",
+    "Wget/1.21.4 (linux-gnu)",
+    "python-requests/2.32.3",
+    "Go-http-client/1.1",
+    "Node.js/20.5.1",
+]
+
+
+def _random_ipv6_host(prefix: str) -> str:
+    """Return a concrete address within an IPv6 /64 prefix.
+
+    The host part is generated randomly, mimicking a fresh OS privacy address.
+    The input prefix must end in ``::/64`` (e.g. ``2a02:8109:ac82:6f0c::/64``).
+    """
+    if "/" not in prefix:
+        return prefix
+    base, mask = prefix.split("/")
+    if mask != "64":
+        raise ValueError(f"only /64 IPv6 prefixes are supported, got {prefix!r}")
+    if base.endswith("::"):
+        base = base[:-2]
+    host = ":".join(f"{random.randint(0, 0xffff):04x}" for _ in range(4))
+    return f"{base}:{host}"
+
+
+def _concretize_ip(entry: str) -> str:
+    """Return a concrete IP address; randomise the host part for IPv6 /64 prefixes."""
+    if ":" in entry and "/" in entry:
+        return _random_ipv6_host(entry)
+    return entry
+
+
+class _SessionIP:
+    """Stable IP for a browser session, with one optional mid-session rotation.
+
+    IPv6 prefixes get a fresh random host part; IPv4 addresses are swapped for
+    another address from the residential pool.
+    """
+
+    def __init__(self, entry: str, pool: Sequence[str]):
+        self.entry = entry
+        self.pool = pool
+        self._value = _concretize_ip(entry)
+
+    def current(self) -> str:
+        return self._value
+
+    def rotate(self) -> None:
+        if ":" in self.entry and "/" in self.entry:
+            self._value = _random_ipv6_host(self.entry)
+            return
+        # IPv4: switch to another IPv4 address from the residential pool.
+        for _ in range(20):
+            candidate_entry = random.choice(self.pool)
+            if ":" in candidate_entry and "/" in candidate_entry:
+                continue
+            candidate = _concretize_ip(candidate_entry)
+            if candidate != self._value:
+                self._value = candidate
+                return
+
+
+def _sleep(base: float, jitter: float) -> None:
+    time.sleep(max(0.0, base + random.uniform(-jitter, jitter)))
+
+
+def _normalize_url(url: str) -> str:
+    """Return a usable base URL, adding missing scheme/host/port parts.
+
+    - bare ``:PORT`` becomes ``http://localhost:PORT``
+    - missing scheme becomes ``http://``
+    - otherwise returned as-is
+
+    Raises ``ValueError`` when the result is not a valid http(s) URL.
+    """
+    raw = url.strip()
+    if not raw:
+        raise ValueError("empty URL")
+    if raw.startswith(":"):
+        raw = f"http://localhost{raw}"
+    elif raw.isdigit():
+        raw = f"http://localhost:{raw}"
+    elif not raw.startswith(("http://", "https://")):
+        raw = f"http://{raw}"
+    parsed = urlparse(raw)
+    if parsed.scheme not in ("http", "https") or not parsed.netloc:
+        raise ValueError(f"invalid URL: {url!r}")
+    return raw
+
+
+def _poisson_wait(rate: float) -> float:
+    """Return an exponential inter-arrival time for the given Poisson rate."""
+    if rate <= 0:
+        return 0.0
+    return random.expovariate(rate)
+
+
+def _collect_links(page: Any, include_external: bool = False) -> list[dict[str, Any]]:
+    """Return links from the current page, excluding the current page.
+
+    Internal links stay on the site; external links are real https URLs found
+    in the page content and are marked with ``external: true``.
+    """
+    return page.evaluate(
+        """(includeExternal) => {
+            const loc = new URL(location.href);
+            const out = [];
+            for (const a of document.querySelectorAll('a[href]')) {
+                try {
+                    const u = new URL(a.href);
+                    const rect = a.getBoundingClientRect();
+                    const item = {
+                        href: a.href,
+                        text: (a.innerText || a.title || '').trim().slice(0, 60),
+                        visible: !!(rect.width && rect.height && rect.top < window.innerHeight && rect.bottom > 0),
+                    };
+                    if (u.origin === loc.origin
+                            && !u.pathname.startsWith('/_')
+                            && !u.pathname.startsWith('/auth')
+                            && u.pathname !== '/favicon.ico'
+                            && u.pathname !== loc.pathname) {
+                        out.push(item);
+                    } else if (includeExternal && u.protocol === 'https:' && u.origin !== loc.origin) {
+                        out.push({ ...item, external: true });
+                    }
+                } catch { /* ignore malformed hrefs */ }
+            }
+            return out;
+        }""",
+        include_external,
+    )
+
+
+def _click_link(page: Any, link: dict[str, Any], timeout: float = 10.0) -> bool:
+    """Click an internal link and wait for the client-side URL to change."""
+    start_url = page.url
+    try:
+        # Prefer Playwright's native click; fall back to a JS click if the
+        # locator cannot be resolved or times out.
+        try:
+            page.locator(f"a[href='{link['href']}']").first.click(timeout=2000)
+        except Exception:  # noqa: BLE001
+            clicked = page.evaluate(
+                """(href) => {
+                    const a = Array.from(document.querySelectorAll('a[href]'))
+                        .find(el => el.href === href);
+                    if (a) { a.click(); return true; }
+                    return false;
+                }""",
+                link["href"],
+            )
+            if not clicked:
+                return False
+        # Wait for the client-side navigation to update the URL.
+        deadline = time.time() + timeout
+        while time.time() < deadline:
+            if page.url != start_url:
+                return True
+            page.wait_for_timeout(100)
+        return False
+    except Exception as exc:  # noqa: BLE001
+        logger.debug("click failed on %s: %s", link.get("href"), exc)
+        return False
+
+
+def _run_browser_session(
+    base: str,
+    paths: Sequence[str],
+    profile: BrowserProfile,
+    session_index: int,
+    ip_entry: str,
+) -> dict[str, Any]:
+    from playwright.sync_api import sync_playwright
+
+    MAX_CLICKS = 6
+    STAY = (2.0, 6.0)
+    HEADLESS = True
+    REFERER_RATE = 0.75
+    INCLUDE_EXTERNAL = True
+
+    ip_provider = _SessionIP(ip_entry, RESIDENTIAL_SOURCE_IPS)
+    ips_used: list[str] = [ip_provider.current()]
+    trail: list[str] = []
+    start_time = datetime.now(UTC)
+    try:
+        with sync_playwright() as p:
+            browser = p.chromium.launch(
+                headless=HEADLESS,
+                args=["--no-sandbox", "--disable-dev-shm-usage"],
+            )
+            extra_headers = {
+                "X-Forwarded-For": ip_provider.current(),
+                "Accept-Language": profile.accept_language,
+            }
+            # Most sessions arrive from an external origin; some are direct.
+            # A subset of referered sessions carries realistic UTM tags on the
+            # landing URL; the referer origin is paired with the UTM source.
+            tagged: dict[str, str] = {}
+            if random.random() < REFERER_RATE:
+                if random.random() < UTM_RATE:
+                    referer, tagged = random.choice(TAGGED_REFERRERS)
+                else:
+                    referer = random.choice(PLAIN_REFERRERS)
+                extra_headers["Referer"] = referer
+            context = browser.new_context(
+                user_agent=profile.user_agent,
+                viewport={"width": profile.viewport[0], "height": profile.viewport[1]},
+                extra_http_headers=extra_headers,
+            )
+            page = context.new_page()
+
+            # Update X-Forwarded-For per request; the value stays stable unless we
+            # explicitly rotate it once mid-session.
+            def _route_handler(route, request):
+                headers = dict(request.headers)
+                headers["X-Forwarded-For"] = ip_provider.current()
+                ips_used.append(headers["X-Forwarded-For"])
+                route.continue_(headers=headers)
+
+            page.route("**/*", _route_handler)
+
+            # Pick one point during the session to emulate an IP rotation.
+            rotate_at = random.randint(0, MAX_CLICKS - 1) if MAX_CLICKS > 0 else -1
+
+            entry = random.choice(paths) if paths else "/"
+            landing = urljoin(base, entry)
+            if tagged:
+                sep = "&" if "?" in landing else "?"
+                landing += sep + urlencode(tagged)
+            page.goto(landing, wait_until="networkidle")
+            trail.append(page.url)
+
+            for click_idx in range(MAX_CLICKS):
+                _sleep(random.uniform(*STAY) / 2, 0.3)
+                if click_idx == rotate_at:
+                    ip_provider.rotate()
+                    ips_used.append(ip_provider.current())
+                    logger.debug("rotated session IP to %s", ip_provider.current())
+                links = _collect_links(page, INCLUDE_EXTERNAL)
+                visible = [item for item in links if item.get("visible")]
+                if not visible:
+                    visible = links
+                if not visible:
+                    break
+                link = random.choice(visible)
+                ok = _click_link(page, link)
+                if not ok:
+                    # Retry once with any link (sometimes visible calc misses nav).
+                    alt = random.choice(links) if links else None
+                    if alt and alt is not link:
+                        ok = _click_link(page, alt)
+                    if not ok:
+                        break
+                if link.get("external"):
+                    # Outbound navigation: the analytics exit ping is already
+                    # in flight. Record the external URL and end the session.
+                    trail.append(page.url)
+                    _sleep(0.5, 0.2)
+                    break
+                page.wait_for_load_state("networkidle")
+                trail.append(page.url)
+                _sleep(random.uniform(*STAY), 0.5)
+
+            browser.close()
+
+        return {
+            "profile": profile.name,
+            "entry": entry,
+            "ip": ips_used[0],
+            "ips_seen": len(set(ips_used)),
+            "pages": len(trail),
+            "trail": [urlparse(u).path or "/" for u in trail],
+            "duration": (datetime.now(UTC) - start_time).total_seconds(),
+        }
+    except Exception as exc:  # noqa: BLE001
+        logger.warning("browser session failed: %s", exc)
+        return {"profile": profile.name, "error": str(exc), "trail": trail}
+
+
+def _run_crawler_hit(
+    base: str,
+    paths: Sequence[str],
+    profile: CrawlerProfile,
+) -> dict[str, Any]:
+    path = random.choice(paths) if paths else "/"
+    url = urljoin(base, path)
+    fake_ip = profile.ip
+    headers = {
+        "User-Agent": profile.user_agent,
+        "X-Forwarded-For": fake_ip,
+        "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+        "Accept-Language": "en-US,en;q=0.5",
+    }
+    try:
+        with httpx.Client(follow_redirects=True, timeout=15.0) as client:
+            r = client.get(url, headers=headers)
+        return {
+            "profile": profile.name,
+            "path": path,
+            "status": r.status_code,
+            "ip": fake_ip,
+        }
+    except Exception as exc:  # noqa: BLE001
+        return {"profile": profile.name, "path": path, "error": str(exc)}
+
+
+def _abuse_ua() -> str:
+    """Return a randomized, syntactically valid user agent for an abuse scan."""
+    return random.choice(ABUSE_USER_AGENTS)
+
+
+def _run_abuse_scanner(base: str, ip_index: int) -> dict[str, Any]:
+    """Fire a burst of vulnerability probes from a single fake IP.
+
+    Scanner 0 randomises its user agent every request, scanner 1 uses a fixed
+    browser UA, and scanner 2 uses a fixed crawler UA.
+    """
+    ip_entry = ABUSE_SOURCE_IPS[ip_index % len(ABUSE_SOURCE_IPS)]
+    if ":" in ip_entry and "/" in ip_entry:
+        fake_ip = _random_ipv6_host(ip_entry)
+    else:
+        fake_ip = ip_entry
+
+    MIN_HITS = 15
+    MAX_HITS = 25
+    total_hits = random.randint(MIN_HITS, MAX_HITS)
+
+    # Ensure the burst contains both telltales: suspicious paths and more
+    # than ten normal-looking 404 paths.
+    suspicious_count = max(5, total_hits // 3)
+    normal_count = total_hits - suspicious_count
+    if normal_count < 11:
+        normal_count = 11
+        suspicious_count = max(3, total_hits - normal_count)
+
+    paths = random.choices(SUSPICIOUS_PATHS, k=suspicious_count) + random.choices(
+        NORMAL_404_PATHS, k=normal_count
+    )
+    random.shuffle(paths)
+
+    ua_mode = ip_index % 3
+    if ua_mode == 0:
+        get_ua = _abuse_ua
+    elif ua_mode == 1:
+        def get_ua() -> str:
+            return BROWSER_PROFILES[0].user_agent
+    else:
+        def get_ua() -> str:
+            return CRAWLER_PROFILES[0].user_agent
+
+    scan_results: list[dict[str, Any]] = []
+    with httpx.Client(follow_redirects=True, timeout=15.0) as client:
+        for path in paths:
+            headers = {
+                "User-Agent": get_ua(),
+                "X-Forwarded-For": fake_ip,
+                "Accept": "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8",
+                "Accept-Language": random.choice(
+                    ["en-US,en;q=0.9", "en-GB,en;q=0.8", "en;q=0.7"]
+                ),
+            }
+            try:
+                r = client.get(urljoin(base, path), headers=headers)
+                scan_results.append(
+                    {"path": path, "status": r.status_code, "ua": headers["User-Agent"]}
+                )
+            except Exception as exc:  # noqa: BLE001
+                scan_results.append({"path": path, "error": str(exc)})
+            _sleep(0.15, 0.1)
+
+    return {
+        "scanner": ip_index + 1,
+        "ip": fake_ip,
+        "hits": len(scan_results),
+        "results": scan_results,
+    }
+
+
+def _parse_args(argv: Sequence[str] | None) -> argparse.Namespace:
+    parser = argparse.ArgumentParser(
+        description="Generate fake traffic for a Pagerite site.",
+        formatter_class=argparse.ArgumentDefaultsHelpFormatter,
+    )
+    parser.add_argument(
+        "url",
+        nargs="?",
+        default="http://localhost:8200",
+        help="Base URL of the Pagerite site (default: http://localhost:8200). "
+             "A bare :PORT or PORT is treated as http://localhost:PORT; a "
+             "missing scheme defaults to http://.",
+    )
+    parser.add_argument(
+        "-t",
+        "--duration",
+        type=float,
+        default=60.0,
+        metavar="SECONDS",
+        help="Rough maximum time to generate traffic (0 runs one preset batch)",
+    )
+    parser.add_argument("-v", "--verbose", action="store_true", help="Debug logging")
+    return parser.parse_args(argv)
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    args = _parse_args(argv)
+    if args.verbose:
+        logger.setLevel(logging.DEBUG)
+
+    try:
+        base = _normalize_url(args.url).rstrip("/")
+    except ValueError as exc:
+        logger.error("%s", exc)
+        return 2
+
+    # Discover content paths from the public page tree if we can.
+    paths: list[str] = []
+    try:
+        r = httpx.get(urljoin(base, "/_api/pages"), timeout=10.0)
+        if r.status_code == 200:
+            paths = [page["path"] for page in r.json() if page.get("has_content")]
+    except Exception as exc:  # noqa: BLE001
+        logger.debug("could not fetch page list: %s", exc)
+    if not paths:
+        paths = ["/"]
+
+    logger.info(
+        "Generating fake traffic against %s (%d content paths, duration=%ss)",
+        base,
+        len(paths),
+        args.duration,
+    )
+
+    results: list[dict[str, Any]] = []
+    arrival_rate = 1.0
+
+    def _wait() -> None:
+        wait = _poisson_wait(arrival_rate)
+        logger.debug("waiting %.2fs before next session", wait)
+        time.sleep(wait)
+
+    if args.duration <= 0:
+        # One preset batch.
+        for i in range(5):
+            if i > 0:
+                _wait()
+            profile = random.choice(BROWSER_PROFILES)
+            ip_entry = random.choice(RESIDENTIAL_SOURCE_IPS)
+            logger.info(
+                "browser session: %s (ip=%s)",
+                profile.name,
+                _concretize_ip(ip_entry),
+            )
+            result = _run_browser_session(base, paths, profile, i, ip_entry)
+            results.append(result)
+            logger.debug("  trail: %s", result.get("trail", []))
+
+        for i in range(10):
+            if i > 0:
+                _wait()
+            profile = random.choice(CRAWLER_PROFILES)
+            logger.info(
+                "crawler hit: %s (ip=%s)",
+                profile.name,
+                profile.ip,
+            )
+            result = _run_crawler_hit(base, paths, profile)
+            results.append(result)
+
+        for i in range(3):
+            if i > 0:
+                _wait()
+            ip_entry = ABUSE_SOURCE_IPS[i % len(ABUSE_SOURCE_IPS)]
+            logger.info("abuse scanner: %s", ip_entry)
+            result = _run_abuse_scanner(base, i)
+            results.append(result)
+            logger.debug(
+                "  hits: %s", [r.get("path") for r in result.get("results", [])]
+            )
+    else:
+        deadline = time.time() + args.duration
+        session_index = 0
+        while time.time() < deadline:
+            if session_index > 0:
+                _wait()
+            phase = session_index % 3
+            if phase == 0:
+                profile = random.choice(BROWSER_PROFILES)
+                ip_entry = random.choice(RESIDENTIAL_SOURCE_IPS)
+                logger.info(
+                    "browser session: %s (ip=%s)",
+                    profile.name,
+                    _concretize_ip(ip_entry),
+                )
+                result = _run_browser_session(
+                    base, paths, profile, session_index, ip_entry
+                )
+                logger.debug("  trail: %s", result.get("trail", []))
+            elif phase == 1:
+                profile = random.choice(CRAWLER_PROFILES)
+                logger.info(
+                    "crawler hit: %s (ip=%s)",
+                    profile.name,
+                    profile.ip,
+                )
+                result = _run_crawler_hit(base, paths, profile)
+            else:
+                ip_entry = ABUSE_SOURCE_IPS[session_index % len(ABUSE_SOURCE_IPS)]
+                logger.info("abuse scanner: %s", ip_entry)
+                result = _run_abuse_scanner(base, session_index // 3)
+                logger.debug(
+                    "  hits: %s",
+                    [r.get("path") for r in result.get("results", [])],
+                )
+            results.append(result)
+            session_index += 1
+
+    ok = sum(1 for r in results if "error" not in r)
+    logger.info("Done: %d/%d requests succeeded.", ok, len(results))
+    return 0 if ok == len(results) else 1
+
+
+if __name__ == "__main__":
+    sys.exit(main())