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Live up/down heatmap for 40+ popular internet services. Built on Cloudflare Workers + D1.

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# isUpMap — Service Status Heatmap

[![isUpMap status](https://img.shields.io/endpoint?url=https%3A%2F%2Fisupmap.com%2Fapi%2Fsummary%3Fformat%3Dshields)](https://isupmap.com)
[![Deploy to Cloudflare](https://deploy.workers.cloudflare.com/button)](https://deploy.workers.cloudflare.com/?url=https://github.com/Jaironlanda/isupmap)

**Live: [isUpMap](https://isupmap.com)** (Official)
**Live: [map.warmindex.com](https://map.warmindex.com)** (Backup)

A live **up / down heatmap** for 80+ popular internet services, rendered as a
stock-map style treemap with brand logos. Built on a single
[Cloudflare Worker](https://developers.cloudflare.com/workers/): a **Cron
Trigger** polls each service's official status and persists snapshots + an
incident log to **D1**, and a static frontend renders the treemap with
per-service uptime, an incident history, a command palette, light/dark themes,
and a mobile-friendly detail sheet.

![Heatmap example](https://raw.githubusercontent.com/Jaironlanda/isupmap/main/public/images/og-map.png)

## Features

- **Treemap heatmap** — services grouped into category "sectors", tiles sized by
  prominence and colored by status, each with a brand logo.
- **Per-service detail** — tap a tile (mobile) or click it (desktop) for status,
  24h/7d uptime, component rollup, active incident, status-page host, and a
  **"Visit status page"** link.
- **Incident history** — server-recorded incidents (open/close/duration),
  persisted in D1 and shown in a side panel and per-service (last 2 shown).
- **90-day uptime history** — Statuspage-style daily bars (colored by each day's
  worst incident status, with per-day uptime tooltips) plus the window average,
  derived from the incident log. Shown in the detail modal and on the SSR
  `/status/<id>` pages.
- **Community "report it's down"** — users can vote a service is down with a
  reason (`Can't connect`, `Errors`, `Can't log in`, `Slow`, `Other`). Votes are
  deduplicated per IP-hash per 24 h, buffered through a Cloudflare Queue, and
  persisted in a separate D1. The per-service detail page shows aggregate counts,
  a **24-hour report-volume chart** (Downdetector-style line + faint area over a
  shaded "typical range" band), per-country and per-reason breakdowns, and a
  **Protomaps world map** of recent report origins.
- **Report-surge detection** — a Downdetector-style anomaly signal layered on the
  community reports. Each cron run scores a service's recent report volume against
  its own rolling baseline (EWMA mean + variance) and raises a **surge** when the
  count is a statistical outlier (≥3σ), clears an absolute floor (≥5 reports), and
  holds for 2 consecutive passes. A surging service is shown as a new **"Reported"**
  status color (orange) and a **24h sparkline** on big tiles — supplementary only,
  it never opens an incident or alters the authoritative probe status. See
  [`detectSurges`](src/reports.ts).
- **Command palette (⌘K)** — fuzzy-search services and run commands.
- **Local customization** — show/hide services or categories and a
  "problems only" filter, persisted in `localStorage`.
- **Notifications** — in-page toasts on status changes, plus optional opt-in
  **desktop notifications**.
- **Atom incident feeds** — subscribe to outages in any feed reader (or an
  RSS-to-alert tool): [`/feed.xml`](https://isupmap.com/feed.xml) covers every
  service, `/status/<id>/feed.xml` covers one. Entries update in place when an
  incident resolves ("Resolved: GitHub was down for 25m").
- **Light / dark theme**, deep links (`?service=`, `?filter=problems`), and a
  favicon/title that reflect overall state.

## How it works

```
Cron (every 5m) ─▶ scheduled() ─▶ resolveStatus() × N      ┌─▶ Statuspage JSON   ({base}/api/v2/summary.json)
                       │           (1 retry on a blip)      ├─▶ RSS / Atom feed   (fast-xml-parser)
                       │   (src/sources.ts) ────────────────┘
                       │                                    └─▶ HTTP reachability ping
                       │       each fetch attempt ──────────────▶ Analytics Engine (FETCH_ANALYTICS)
                       │                                          (service id, url, latency, status code, attempt)
                       ├─▶ persist to D1 (src/db.ts): flap-dampen → upsert `current`,
                       │   open/close `incidents`; daily retention sweep
                       ├─▶ decorateReports() — surge detection + 24h sparkline from REPORTS_DB
                       │   (supplementary; failure never blocks the status snapshot)
                       └─▶ publish finished snapshot to KV (SNAPSHOT_KV)
Browser (public/) ─poll /api/status every 45s─▶ Worker reads KV (Cache-API fronted) ─▶ treemap + uptime
                  └─open detail / panel ───────▶ GET /api/incidents (D1, cached)     ─▶ incident history

Community reports:
User taps "Report it's down" ─▶ POST /api/report/:id (VOTE_RATE_LIMITER: 10/60s per IP)
                                        │  hash IP → VOTE_QUEUE (Cloudflare Queue)
                                        └─▶ queue consumer → batch-insert into REPORTS_DB (D1)
GET /api/report/:id ─▶ KV hit (10-min TTL) → or D1 aggregate query → report JSON
                                                                       (total, countries, reasons,
                                                                        recent 10, 7-day timeline,
                                                                        24h hourly series, surge flag)
/status/:id page ─▶ server-rendered with Protomaps world map (report locations) + analytics panel
```

- A **Cron Trigger** (`*/5 * * * *`) invokes `scheduled()`, which resolves every
  service **concurrently** (`Promise.allSettled`, each upstream guarded by a 15s
  timeout + edge caching, with **one retry** on a transient blip so a flaky
  connection doesn't read as `unknown`). It persists the result to D1, then
  publishes the finished snapshot to **KV** for the read path.
- **Flap-dampening** (`src/db.ts`) — a non-`up` status must hold for **2
  consecutive polls** before it is committed to `current` or opens an incident;
  recovery to `up` is immediate, and an `unknown` (timed-out) probe holds the last
  status rather than resolving a real incident. A single glitchy upstream read
  therefore never paints a false outage. Resolved incidents older than 90 days are
  pruned once a day (~03:00 UTC).
- `GET /api/status` is a **fast KV read** of the snapshot the cron publishes (no D1
  query on the hot path), with per-service **uptime (24h / 7d)**. It's fronted by
  the **Cache API**; before the first cron run it serves a "warming" snapshot
  (never a live fan-out). The response carries a `stale` flag (older than 3 cron
  cycles) so the UI warns instead of showing frozen data. Each service also carries
  a supplementary `surge` flag and a 24h report-volume `spark` series (added by the
  cron) that the UI uses for the **"Reported"** tile color and per-tile sparkline.
- `GET /api/incidents` returns the recent incident log from D1 (Cache-API fronted). An
  optional `?service=<id>` filter scopes it to a single service.
- `GET /api/uptime/:id` returns a **90-day daily uptime series** for one service
  (`{ date, uptime, worst }` per UTC day, oldest first, plus a `uptime90` window
  average), computed from incident intervals — `degraded` counts against uptime,
  matching the 24h/7d numbers. Same Cache-API + rate-limit fronting as
  `/api/incidents` (5-min TTL). Approximations: days before a service was added
  read 100%, and an incident whose severity changed carries its final status for
  the whole interval.
- `GET /feed.xml` (and per-service `GET /status/<id>/feed.xml`) serves the same
  incident log as an **Atom feed** for feed readers and RSS-to-alert tools. Entry
  ids are permanent and `<updated>` moves on resolution, so readers show recovery
  as an update to the same item rather than a duplicate. The dashboard and SSR
  pages advertise the feeds via `<link rel="alternate">` autodiscovery. Cache-API
  fronted with a 5-min edge TTL (the cron cadence), so aggressive polling never
  reaches D1.
- `POST /api/report/:id` accepts a community down-report (`{ reason }`) for a known service.
  The IP is hashed with `VOTE_SALT` (SHA-256; never stored raw), deduplicated per IP-hash per
  24 h, and enqueued to `VOTE_QUEUE` for async batch-insert into `REPORTS_DB`. Tighter rate
  limit: 10 req / 60s per IP (`VOTE_RATE_LIMITER`). Returns `503` if `VOTE_SALT` is not set.
- `GET /api/report/:id` returns aggregated community-report data for a service: 7-day total,
  per-country and per-reason breakdowns, up to 10 most-recent individual reports, a 7-day daily
  volume timeline, a **24h hourly series** (for the report-volume chart), and the current **surge**
  flag. Cached in `SNAPSHOT_KV` (`reportcount:<id>`) with a 10-min TTL.
- `GET /api/summary` returns a single **overall-status rollup** (worst status
  wins) plus a headline (`"All systems operational"` / `"2 down, 1 degraded"`),
  per-status counts, and the same `stale` flag — handy for compact embeds, badges,
  or a status banner. Add `?format=shields` for a [shields.io endpoint badge](https://shields.io/badges/endpoint-badge)
  payload (status-colored), which powers the live badge at the top of this README.
  Same KV-read + Cache-API fronting as `/api/status`.
- All API routes are **rate-limited** per IP (60 req / 60s) via a Workers
  rate-limit binding.
- **Crawlable pages** — the dashboard is a client-rendered SPA, so for SEO the
  Worker also server-renders (no-JS) `GET /status/<id>` (per-service status +
  uptime + community report summary + Protomaps world map) and `GET /status`
  (a directory), plus a generated `/sitemap.xml` and a static `robots.txt`.
  These give crawlers real content for queries like "is GitHub down?".
  See [src/pages.ts](src/pages.ts). The map and report widget assets are only
  shipped when the service actually has community report data (`showMap` flag).
- The frontend ([public/app.js](public/app.js)) lays services out with a
  **squarified treemap**; tiles are sized by a per-service `weight` (layout only).

## Status model

Every service is normalized to one of: `up` · `degraded` · `down` · `unknown`.

| Source type   | How status is derived |
|---------------|-----------------------|
| **Statuspage** | Reads `{base}/api/v2/summary.json` (Atlassian). `status.indicator` maps: `none`→`up`, `minor`/`maintenance`→`degraded`. A `major`/`critical` indicator is **tempered by breadth** — since the indicator reflects peak component severity, not how much is affected — so it only reads `down` when the major outage is broad (≥50% of components, or too few components to judge); a localized one (e.g. a single region) → `degraded`. The summary also yields component rollups and active incidents for the detail view. |
| **RSS / Atom** | Parses the latest feed entry (via `fast-xml-parser`). Entries older than 48h are treated as resolved (`up`). A fresh entry mentioning *resolved/restored/operational* → `up`; *outage/down/major/critical* → `down`; anything else fresh → `degraded`. Heuristic. |
| **HTTP ping**  | A plain `GET`. `2xx`/`3xx` → `up`; other response → `degraded`; network error or timeout → `down`. |
| *(any)*        | A failed fetch or timeout → `unknown` (treated as "no data" — never opens an incident or counts as downtime). |

> Statuspage JSON is authoritative where available. RSS-based status is a
> best-effort heuristic, since incident feeds describe history rather than a
> current-state field.

There is also a **display-only** fifth state, **`reported`** (orange): shown when
the probe says `up`/`unknown` but community reports are surging (see
[Report-surge detection](#features)). It's derived at render time from the `surge`
flag and **never** replaces a service's real `status` — a confirmed `down`/`degraded`
always wins, and incidents and uptime stay 100% probe-driven.

## Data sources

All data comes from each service's **own public status page / feed**. IsUpMap is a
read-only aggregator and is not affiliated with any of these services. The list
lives in [src/services.ts](src/services.ts); for Statuspage entries the
`/api/v2/summary.json` path is appended to the `base` shown below.

Rows marked **⊘ disabled** have an upstream that no longer publishes a usable
machine-readable feed, so their status can't be resolved. They are shown as
permanently `unknown` (grey), hidden from the heatmap, and appear locked in the
**Customize** panel with the reason on hover — see
[Disabled services](#disabled-services) below.

| Service | Category | Source | Endpoint / base |
|---------|----------|--------|-----------------|
| GitHub | Developer & Cloud | Statuspage | `https://www.githubstatus.com` |
| Cloudflare | Developer & Cloud | Statuspage | `https://www.cloudflarestatus.com` |
| npm | Developer & Cloud | Statuspage | `https://status.npmjs.org` |
| DigitalOcean | Developer & Cloud | Statuspage | `https://status.digitalocean.com` |
| Vercel | Developer & Cloud | Statuspage | `https://www.vercel-status.com` |
| Netlify | Developer & Cloud | Statuspage | `https://www.netlifystatus.com` |
| MongoDB | Developer & Cloud | Statuspage | `https://status.mongodb.com` |
| Sentry | Developer & Cloud | Statuspage | `https://status.sentry.io` |
| CircleCI | Developer & Cloud | Statuspage | `https://status.circleci.com` |
| Linode | Developer & Cloud | Statuspage | `https://status.linode.com` |
| Render | Developer & Cloud | Statuspage | `https://status.render.com` |
| AWS | Developer & Cloud | RSS | `https://status.aws.amazon.com/rss/all.rss` |
| Google Cloud | Developer & Cloud | RSS | `https://status.cloud.google.com/en/feed.atom` |
| Microsoft Azure | Developer & Cloud | RSS · **⊘ disabled** | `https://azure.status.microsoft/en-us/status/feed/` |
| Supabase | Developer & Cloud | Statuspage | `https://status.supabase.com` |
| Fly.io | Developer & Cloud | Statuspage | `https://status.flyio.net` |
| Railway | Developer & Cloud | RSS · **⊘ disabled** | `https://railway.betteruptime.com/feed.rss` |
| Neon | Developer & Cloud | RSS | `https://neonstatus.com/pages/6878fc85709daa75be6c7e3c/rss` |
| PlanetScale | Developer & Cloud | Statuspage | `https://www.planetscalestatus.com` |
| Bunny.net | Developer & Cloud | Statuspage | `https://status.bunny.net` |
| Auth0 | Developer & Cloud | Statuspage · **⊘ disabled** | `https://auth0.statuspage.io` |
| Clerk | Developer & Cloud | Statuspage | `https://status.clerk.com` |
| HashiCorp | Developer & Cloud | Statuspage | `https://status.hashicorp.com` |
| Snowflake | Developer & Cloud | Statuspage | `https://status.snowflake.com` |
| Elastic | Developer & Cloud | Statuspage | `https://status.elastic.co` |
| New Relic | Developer & Cloud | Statuspage | `https://status.newrelic.com` |
| Grafana | Developer & Cloud | Statuspage | `https://status.grafana.com` |
| PagerDuty | Developer & Cloud | RSS · **⊘ disabled** | `https://status.pagerduty.com/history.rss` |
| Algolia | Developer & Cloud | RSS · **⊘ disabled** | `https://status.algolia.com/history.rss` |
| GitLab | Developer & Cloud | RSS | `https://status.gitlab.com/pages/5b36dc6502d06804c08349f7/rss` |
| Docker | Developer & Cloud | RSS | `https://www.dockerstatus.com/pages/533c6539221ae15e3f000031/rss` |
| Appwrite | Developer & Cloud | RSS | `https://status.appwrite.online/feed.rss` |
| Firebase | Developer & Cloud | RSS (Atom) | `https://status.firebase.google.com/en/feed.atom` |
| Firecrawl | Developer & Cloud | RSS | `https://status.firecrawl.dev/feed.rss` |
| OpenAI | AI | RSS | `https://status.openai.com/feed.rss` |
| Anthropic | AI | Statuspage | `https://status.claude.com` |
| xAI | AI | RSS | `https://status.x.ai/feed.xml` |
| Groq | AI | Statuspage | `https://groqstatus.com` |
| ElevenLabs | AI | Statuspage | `https://status.elevenlabs.io` |
| Cohere | AI | Statuspage | `https://status.cohere.com` |
| Replicate | AI | Statuspage | `https://www.replicatestatus.com` |
| Pinecone | AI | Statuspage | `https://status.pinecone.io` |
| Runway | AI | Statuspage | `https://status.runwayml.com` |
| Hugging Face | AI | RSS | `https://status.huggingface.co/feed.rss` |
| Together AI | AI | RSS | `https://status.together.ai/feed.rss` |
| Perplexity | AI | RSS | `https://status.perplexity.com/default/history.rss` |
| Stability AI | AI | Statuspage | `https://status.stability.ai` |
| Deepgram | AI | Statuspage | `https://status.deepgram.com` |
| AssemblyAI | AI | Statuspage | `https://status.assemblyai.com` |
| Cursor | AI | RSS | `https://status.cursor.com/history.rss` |
| Cerebras | AI | Statuspage | `https://status.cerebras.ai` |
| Fireworks AI | AI | RSS | `https://status.fireworks.ai/feed.rss` |
| DeepSeek | AI | Statuspage | `https://status.deepseek.com` |
| Mistral AI | AI | HTTP ping | `https://status.mistral.ai` |
| Stripe | Payments | Statuspage | `https://www.stripestatus.com` |
| Coinbase | Payments | Statuspage | `https://status.coinbase.com` |
| Shopify | Payments | Statuspage | `https://www.shopifystatus.com` |
| Plaid | Payments | Statuspage | `https://status.plaid.com` |
| Paddle | Payments | Statuspage | `https://paddlestatus.com` |
| Lemon Squeezy | Payments | RSS · **⊘ disabled** | `https://ohdear.app/status-page/lemon-squeezy-status/subscribe-rss` |
| Square | Payments | Statuspage | `https://www.issquareup.com` |
| Klarna | Payments | Statuspage | `https://status.klarna.com` |
| PayPal | Payments | RSS | `https://www.paypal-status.com/feed/rss` |
| Discord | Communication | Statuspage | `https://discordstatus.com` |
| Slack | Communication | RSS | `https://slack-status.com/feed/rss` |
| Zoom | Communication | Statuspage | `https://www.zoomstatus.com` |
| Twilio | Communication | Statuspage | `https://status.twilio.com` |
| SendGrid | Communication | Statuspage | `https://status.sendgrid.com` |
| Resend | Communication | Statuspage | `https://resend-status.com` |
| Mailgun | Communication | Statuspage | `https://status.mailgun.com` |
| Intercom | Communication | Statuspage | `https://www.intercomstatus.com` |
| HubSpot | Communication | Statuspage | `https://status.hubspot.com` |
| Atlassian | Productivity & Media | Statuspage | `https://status.atlassian.com` |
| Dropbox | Productivity & Media | Statuspage | `https://status.dropbox.com` |
| Datadog | Productivity & Media | Statuspage | `https://status.datadoghq.com` |
| Figma | Productivity & Media | Statuspage | `https://status.figma.com` |
| Box | Productivity & Media | Statuspage | `https://status.box.com` |
| Squarespace | Productivity & Media | Statuspage | `https://status.squarespace.com` |
| Wikipedia | Productivity & Media | HTTP ping | `https://www.wikipedia.org` |
| Linear | Productivity & Media | Statuspage | `https://linearstatus.com` |
| Notion | Productivity & Media | Statuspage | `https://www.notion-status.com` |
| Cloudinary | Productivity & Media | Statuspage | `https://status.cloudinary.com` |
| Asana | Productivity & Media | Statuspage | `https://status.asana.com` |
| Airtable | Productivity & Media | Statuspage | `https://status.airtable.com` |
| Miro | Productivity & Media | Statuspage | `https://status.miro.com` |
| Canva | Productivity & Media | Statuspage | `https://www.canvastatus.com` |
| Webflow | Productivity & Media | Statuspage | `https://status.webflow.com` |
| DocuSign | Productivity & Media | Statuspage | `https://status.docusign.com` |
| Twitch | Gaming & Entertainment | Statuspage | `https://status.twitch.com` |
| Epic Games | Gaming & Entertainment | Statuspage | `https://status.epicgames.com` |
| Netflix | Gaming & Entertainment | HTTP ping | `https://www.netflix.com` |
| Roblox | Gaming & Entertainment | RSS | `https://status.roblox.com/pages/59db90dbcdeb2f04dadcf16d/rss` |
| Steam | Gaming & Entertainment | HTTP ping | `https://store.steampowered.com` |
| PlayStation Network | Gaming & Entertainment | HTTP ping | `https://www.playstation.com` |
| Riot Games | Gaming & Entertainment | HTTP ping | `https://www.riotgames.com` |
| Spotify | Gaming & Entertainment | HTTP ping | `https://open.spotify.com` |
| X (Twitter) | Social Media | HTTP ping | `https://x.com` |
| Facebook | Social Media | HTTP ping | `https://www.facebook.com` |
| Instagram | Social Media | HTTP ping | `https://www.instagram.com` |
| YouTube | Social Media | HTTP ping | `https://www.youtube.com` |
| TikTok | Social Media | HTTP ping | `https://www.tiktok.com` |
| WhatsApp | Social Media | HTTP ping | `https://www.whatsapp.com` |
| LinkedIn | Social Media | HTTP ping | `https://www.linkedin.com` |
| Telegram | Social Media | HTTP ping | `https://telegram.org` |
| Reddit | Social Media | Statuspage | `https://www.redditstatus.com` |
| Pinterest | Social Media | HTTP ping | `https://www.pinterest.com` |
| Snapchat | Social Media | HTTP ping | `https://www.snapchat.com` |
| Bluesky | Social Media | HTTP ping | `https://bsky.app` |
| Threads | Social Media | HTTP ping | `https://www.threads.net` |
| Mastodon | Social Media | HTTP ping | `https://mastodon.social` |
| Tumblr | Social Media | HTTP ping | `https://www.tumblr.com` |

### Disabled services

A service is **disabled** when its upstream no longer provides a status feed we can
trust — it stopped publishing a machine-readable feed, or the feed reports stale /
incorrect state. Rather than show a stale or misleading status, a disabled service is set to
`unknown` (grey), kept out of the heatmap, and listed — locked and labelled
`disabled`, with the reason on hover — in the **Customize** panel. The resolver
skips disabled services entirely (no fetch). To disable one, add a `disabled:
"<reason>"` string to its entry in [src/services.ts](src/services.ts).

Currently disabled (upstream no longer exposes a machine-readable feed, verified
2026-06-05):

| Service | Reason |
|---------|--------|
| Microsoft Azure | Global status feed publishes no machine-readable incident items (empty channel). |
| Auth0 | Statuspage JSON (`auth0.statuspage.io`) is stale — reports a phantom "minor outage" with no active incident while the live page shows all operational. |
| Railway | Migrated to a JS-rendered status page (`status.railway.com`); the old Betterstack feed is empty. |
| PagerDuty | `history.rss` now returns an HTML page instead of XML. |
| Algolia | `history.rss` now returns an HTML page instead of XML. |
| Lemon Squeezy | The Oh Dear feed URL now serves an HTML subscribe page instead of a feed. |

To add a service, append an entry to [src/services.ts](src/services.ts) with its
`category`, a `weight` (tile size), and a `source`. Brand logos are
**self-hosted**: add the service id to `LOGO_DOMAIN` ([public/app.js](public/app.js))
and drop a matching `<id>.png` (a ~128px favicon) in
[public/images/logo/services/](public/images/logo/services/).

> **Tips:** Statuspage hosts often `302`-redirect to a canonical domain
> (e.g. `status.zoom.us` → `www.zoomstatus.com`) — use the canonical host to
> avoid an extra hop. Some hosts (e.g. `status.x.ai`) put the JSON behind a
> Cloudflare bot challenge; use their RSS feed instead.

## Security

- **Rate limiting** — `/api/*` is capped at 60 requests / 60s per IP
  (`API_RATE_LIMITER`); the vote endpoint (`POST /api/report/:id`) has its own
  tighter cap of 10 requests / 60s per IP (`VOTE_RATE_LIMITER`); over-limit
  returns `429`.
- **IP privacy** — the vote path never stores raw IPs. The IP is SHA-256-hashed
  with a `VOTE_SALT` secret before storage; without a real salt the endpoint
  returns `503` rather than persisting a reversible hash.
- **Vote deduplication** — one vote per IP-hash per service per 24-hour bucket
  (enforced by a D1 primary key), so burst-voting during an outage doesn't
  inflate counts.
- **Caching** — `/api/status`, `/api/summary`, `/api/incidents`, and
  `/api/report/:id` are wrapped in the Cache API or KV; D1 stays off the hot
  read path for all of these.
- **Headers / CSP** — [public/_headers](public/_headers) sets a strict
  `Content-Security-Policy` (no inline scripts), `X-Content-Type-Options`,
  `X-Frame-Options`, `Referrer-Policy`, and `Permissions-Policy` on static
  assets; the Worker adds `nosniff` + `Referrer-Policy` to API responses. The
  `/status/:id` page uses a relaxed CSP (`script-src 'self'`) only when the
  report widget and map are present; all other server-rendered pages use
  `script-src 'none'`.

## Analytics

### Frontend (GA4)

Google Analytics (GA4) is wired in [public/analytics.js](public/analytics.js)
and loads **only in production** — it's gated to non-localhost hosts (so it's
off during `wrangler dev`) and injected from a same-origin module to avoid an
inline script under the CSP. Update or remove `GA_ID` there to change it.

### Upstream fetch analytics (Workers Analytics Engine)

Every upstream fetch attempt made by the cron is logged to a **Workers
Analytics Engine** dataset (`isupmap_fetches`) via the `FETCH_ANALYTICS`
binding (see [src/analytics.ts](src/analytics.ts)). This gives a
queryable record of each HTTP call the Worker makes — useful for spotting slow
status pages, tracking retry rates, and debugging `unknown` spikes.

**Schema** (query via `wrangler analytics-engine sql` or the AE SQL API):

| Column | Type | Description |
|--------|------|-------------|
| `timestamp` | auto | When the fetch was made |
| `index1` | string | Service ID (use in `WHERE` / `GROUP BY`) |
| `blob1` | string | URL fetched |
| `blob2` | string | Source type: `statuspage` · `rss` · `http` |
| `blob3` | string | Error message (empty string on success) |
| `double1` | number | HTTP status code (0 for network / timeout errors) |
| `double2` | number | Round-trip latency in milliseconds |
| `double3` | number | Attempt index (0 = first try, 1 = retry) |
| `double4` | number | 1 if the response was `ok` (2xx), 0 otherwise |

**Example queries:**

```sql
-- Average latency per service over the last hour
SELECT index1 AS service, avg(double2) AS avg_latency_ms, count() AS fetches
FROM isupmap_fetches
WHERE timestamp > NOW() - INTERVAL '1' HOUR
GROUP BY service ORDER BY avg_latency_ms DESC;

-- Retry rate per source type
SELECT blob2 AS source_type,
       sum(double3) AS retries,
       count() AS total,
       round(sum(double3) / count() * 100, 1) AS retry_pct
FROM isupmap_fetches
WHERE timestamp > NOW() - INTERVAL '24' HOUR
GROUP BY source_type;

-- Services with the most errors in the last day
SELECT index1 AS service, count() AS errors
FROM isupmap_fetches
WHERE double4 = 0 AND timestamp > NOW() - INTERVAL '24' HOUR
GROUP BY service ORDER BY errors DESC LIMIT 20;
```

## Development

| Command | Purpose |
|---------|---------|
| `npm install` | Install dependencies (`fast-xml-parser`, `wrangler`). |
| `npm run db:schema:local` | Apply [`schema.sql`](schema.sql) to the **local** status D1 (run once before first dev). |
| `npm run db:schema:reports:local` | Apply [`schema-reports.sql`](schema-reports.sql) to the **local** reports D1. |
| `npm run dev` | Local dev server at `http://localhost:8787`. |
| `npm run dev:cron` | Dev server with `--test-scheduled` so the cron can be triggered locally. |
| `npm run types` | Regenerate Worker types (`wrangler types`) after editing `wrangler.jsonc`. |
| `npm run typecheck` | `tsc --noEmit`. |
| `npm run deploy` | Deploy to Cloudflare. |

Trigger the cron and inspect the API locally:

```sh
npm run dev:cron
curl "http://localhost:8787/__scheduled"      # runs scheduled() once → persists to D1 + publishes to KV
curl -s http://localhost:8787/api/status | jq # served from KV, includes per-service uptime + stale flag
curl -s http://localhost:8787/api/incidents | jq
curl -s http://localhost:8787/api/summary | jq # overall status rollup + headline
curl -s http://localhost:8787/api/uptime/github | jq # 90-day daily uptime series
curl -s http://localhost:8787/feed.xml         # Atom feed of the incident log
```

> **Local cron note:** under plain `wrangler dev`, the documented
> `/cdn-cgi/handler/scheduled` test route currently throws a
> `DataCloneError: ... ScheduledController` (a wrangler local-shim bug). Use
> `npm run dev:cron` (`--test-scheduled`) and the `/__scheduled` route instead.
> Production crons invoke `scheduled()` natively and are unaffected.

## Deploying

### Deploy Button (recommended)

Click the button at the top of this README. Cloudflare will fork the repo,
provision a D1 database, and deploy — no manual config needed.

> After deploy, attach a **custom domain / route** in the Cloudflare dashboard
> (or add a `routes` entry to `wrangler.jsonc`), since `workers_dev: false`
> disables the `*.workers.dev` URL.

### Manual deploy

```sh
npx wrangler d1 create isupmap                                   # status DB; paste the printed id into wrangler.jsonc
npx wrangler d1 create isupmap-reports                           # community reports DB; paste the id into wrangler.jsonc
npx wrangler kv namespace create SNAPSHOT_KV                     # snapshot cache; paste the id into wrangler.jsonc
npx wrangler queues create isupmap-votes                         # vote queue
npx wrangler queues create isupmap-votes-dlq                     # dead-letter queue
wrangler secret put VOTE_SALT                                    # random string; protects IP hashes from reversal
npm run deploy                                                   # deploys the Worker + applies schema.sql to the remote D1
npm run db:schema:reports:remote                                 # applies schema-reports.sql to REPORTS_DB
```

> Re-run `npm run db:schema:remote` / `db:schema:reports:remote` after adding
> indexes/tables (`CREATE … IF NOT EXISTS` is idempotent).

> Set `PROTOMAPS_KEY` (via `wrangler secret put` or in `wrangler.jsonc`) to
> enable the world map on `/status/:id` pages. A free key is available at
> [protomaps.com](https://protomaps.com). Leave it empty to skip the map.

### Rate-limit binding

`wrangler.jsonc` declares a rate-limit binding with `namespace_id: 1001`. This
number is an arbitrary local identifier — you do not need to create or change it;
Cloudflare provisions the binding automatically on deploy.

## Project structure

```
public/            Static frontend (served directly by Cloudflare)
  index.html         Page shell: header/toolbar, treemap, panels, detail modal, palette
  styles.css         Treemap palette, hover card, panels, command palette, bottom sheet, themes
  app.js             Poll loop, treemap, logos, detail sheet, palette, customization, toasts
  report.js          Community report widget + Protomaps world map (loaded on /status/:id only)
  report.css         Styles for the report widget and world-map layout
  analytics.js       GA4 loader, production-only
  robots.txt         Crawl rules + sitemap pointer
  _headers           Security headers / CSP for static assets
  images/            OG image + self-hosted service icons (logo/services/<id>.png)
  lib/               Vendored MapLibre GL and Protomaps basemap assets (world map rendering)
src/
  index.ts           Worker entry: scheduled() cron + rate-limited/cached /api/* + SSR /status pages, /sitemap.xml & Atom /feed.xml
  services.ts        Curated service list + status data sources + shared types
  sources.ts         Per-source-type fetch + normalize (Statuspage/RSS/HTTP); logs each attempt to AE
  analytics.ts       logFetch() helper — writes per-attempt fetch events to the Analytics Engine dataset
  db.ts              D1 persistence: flap-dampening, snapshot upserts, incident transitions, uptime, retention
  pages.ts           Server-rendered status pages (/status, /status/<id>) + sitemap.xml
  reports.ts         Community report logic: write/read/aggregate, 24h sparkline + surge detection (REPORTS_DB + SNAPSHOT_KV cache)
schema.sql           D1 schema (current / incidents / meta / probe_state) + indexes
schema-reports.sql   D1 schema for REPORTS_DB (reports + report_baseline tables + index)
wrangler.jsonc       Worker config (main, assets, cron, D1 × 2, KV, Queues, rate limits × 2, Analytics Engine)
```

## Notes & limitations

- **Persistence** lives in two D1 databases. `DB` (status): the `current`
  snapshot (one row per service), an `incidents` log (one row per non-`up`
  episode), and a `meta` row for the last run. Uptime is derived from incident
  intervals — no high-volume per-poll table — and incident queries are
  index-backed. `REPORTS_DB` (community reports): one row per vote
  (`service_id, ip_hash, bucket` PK); isolated so vote storms during an outage
  don't compete with status writes.
- **Queue** (`VOTE_QUEUE`) — vote POSTs are enqueued and flushed in batches
  (up to 100 messages, 60s max wait) by the consumer, so a burst of reports
  during an outage resolves to a handful of D1 inserts rather than one per
  request.
- **History horizons** — resolved incidents are pruned after 90 days
  (`RETENTION_MS` in [src/db.ts](src/db.ts)); community report rows after 30
  days (`RETENTION_MS` in [src/reports.ts](src/reports.ts)); raise either for
  longer history.
- **Granularity** — status/uptime update every 5 minutes (the cron cadence); the
  UI polls every 45s and serves cached data in between.
- RSS status is heuristic (see the status-model table).
- `cf: { cacheTtl }` edge caching and the Cache API are no-ops/limited under
  `wrangler dev`, so local runs hit upstreams live on each cache miss; production
  caches aggressively. The native rate limiter is eventually-consistent and
  per-location, so its cutoff is best-effort rather than an exact count.

## Sponsors

Thanks to our sponsors for supporting this project:

| | Sponsor | Description |
|---|---------|-------------|
| <img src="public/images/sponsor/stashsync-app/logo.png" width="24" height="24" /> | [StashSync.app](https://stashsync.app) | Your second brain. Public when you want it. |
| <img src="public/images/sponsor/jsonsilo-com/logo.png" width="24" height="24" /> | [JSONsilo.com](https://jsonsilo.com) | Host JSON Files with Unmatched Efficiency |
| <img src="public/images/sponsor/warmindex-com/logo.png" width="24" height="24" /> | [WarmIndex.com](https://warmindex.com) | Web App Directory for Side Projects & Open Source |
| <img src="public/images/sponsor/utilsfor-dev/logo.png" width="24" height="24" /> | [UtilsFor.dev](https://utilsfor.dev) | Tools for developers |

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