Outage report · Major outage

GitHub outage on Oct 21, 2026

Delays for Pull Requests and Webhook deliveries

SeverityMajor outage
StartedOct 21, 2026, 14:52UTC
ResolvedOct 21, 2026, 19:22UTC
Duration4h 30m

What happened

GitHub reported a major outage starting Oct 21, 2026, 14:52 UTC, affecting Webhooks, Pull Requests, Actions. It was marked resolved at Oct 21, 2026, 19:22 UTC.

  • The incident lasted 4h 30m from first report to resolution.
  • It was the longest significant outage GitHub reported in the 12 months up to it.
  • GitHub had reported 8 other partial or major outages in the 90 days before it.
  • 12 other vendors we track reported a significant incident within 12 hours of it.

Latest update from GitHub

This incident has been resolved. Thank you for your patience and understanding as we addressed this issue. A detailed root cause analysis will be shared as soon as it is available.

Read GitHub's official incident report ↗

What our independent monitoring saw

Our independent monitoring of GitHub started after this incident, so this report is based on GitHub's status page.

Other outages around the same time

Significant incidents other vendors reported within 12 hours of this one.

GitHub's overall reliability

47.3/100

GitHub has a reliability score of 47.3/100, with 98.39% effective uptime and 35 incidents over the last 90 days.

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