503RADARINCIDENT ARCHIVEMETHODOLOGY
RESOLVED

GitHub outage — July 27, 2026

Disruption with some GitHub services

GitHub’s Multiple services was disrupted for 11h 36m on July 27, 2026. 503Radar’s sensors raised the first signal at 08:08 UTC, 11h 24m before the official status page acknowledged impact.

Key facts

DetectedJuly 27, 2026 · 08:08 UTC
Confirmed19:33 UTC · lead time 11h 24m
Resolved19:44 UTC
Duration11h 36m
ServiceMultiple services
Official recordhttps://stspg.io/2fdh23jvwmjz

Timeline

  1. 08:08Z

    Detected · Signal

    16 crowd signals for Multiple services on GITHUB crossed the signal threshold.
  2. 19:33Z

    Confirmed · Official

    An official GITHUB status-page notice corroborated the event — 11h 24m after detection.
  3. 19:44Z

    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. 16 crowd reports across bluesky, mastodon (below the anomaly threshold), z=+1.3σ vs the cell baseline. Official notice confirms it, 11h 24m after the crowd.