503RADARINCIDENT ARCHIVEMETHODOLOGY
RESOLVED

Cloudflare outage — August 23, 2026

Increased HTTP 5xx Errors in Chicago

Cloudflare’s Multiple services was disrupted for 13h 15m on August 23, 2026. 503Radar’s sensors raised the first signal at 18:09 UTC, 11h 43m before the official status page acknowledged impact.

Key facts

DetectedAugust 23, 2026 · 18:09 UTC
Confirmed05:53 UTC · lead time 11h 43m
Resolved07:24 UTC
Duration13h 15m
ServiceMultiple services
Official recordhttps://www.cloudflarestatus.com/incidents/9v68b4k90mry

Timeline

  1. 18:09Z

    Detected · Signal

    3 crowd signals for Multiple services on CLOUDFLARE crossed the signal threshold.
  2. 05:53Z

    Confirmed · Official

    An official CLOUDFLARE status-page notice corroborated the event — 11h 43m after detection.
  3. 07:24Z

    Resolved

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

How this was detected

1 independent evidence class for Multiple services on CLOUDFLARE. 3 crowd reports across bluesky, mastodon (below the anomaly threshold), z=+1.3σ vs the cell baseline. Official notice confirms it, 11h 43m after the crowd.