Hackage.

Hackage's 30-day customer-perceived uptime is 100.000%. The figure is weighted (full-outage = 1.0, degraded = 0.3) so component blips don't collapse the score the way a raw incident-count would.

Sign up to CheckUpstream and add Hackage to a watchlist. We send incident alerts via Slack, email, webhook, or PagerDuty within seconds of detection — covering both the official status page and community signals (HN, Reddit, Bluesky, Cloudflare Radar).

Hackage is the central package repository for the Haskell programming language. It is used by Haskell developers to publish, discover, and download libraries and tools, and to browse package documentation and metadata. The main surface is a public web registry and package index, along with package distribution files that can be consumed by Haskell build tools such as Cabal.

We poll Hackage's official status page on a 1-5 minute cadence, parse its RSS / Atom feed as a fallback, ingest community signals from social platforms, and aggregate per-org SDK telemetry. Multiple sources reduce false positives versus any single feed alone.