503RADARINCIDENT ARCHIVEMETHODOLOGY
RESOLVED

GitHub outage — August 23, 2026

Elevated errors on Fable 5 due to upstream provider

GitHub’s Multiple services was disrupted for 11h 30m on August 23, 2026. 503Radar’s sensors raised the first signal at 20:53 UTC, 10h 29m before the official status page acknowledged impact.

Key facts

DetectedAugust 23, 2026 · 20:53 UTC
Confirmed07:23 UTC · lead time 10h 29m
Resolved08:24 UTC
Duration11h 30m
ServiceMultiple services
Official recordhttps://stspg.io/4dz9rv14dz14

Timeline

  1. 20:53Z

    Detected · Signal

    9 crowd signals for Multiple services on GITHUB crossed the signal threshold.
  2. 07:23Z

    Confirmed · Official

    An official GITHUB status-page notice corroborated the event — 10h 29m after detection.
  3. 08:24Z

    Resolved

    Signal volume fell back below the threshold; the event was closed.

How this was detected

1 independent evidence class for Multiple services on GITHUB. 11 crowd reports across bluesky, mastodon (below the anomaly threshold), z=+0.3σ vs the cell baseline. Official notice confirms it, 10h 29m after the crowd.