Cloudflare incident

Page Rules with Host Header Override issues

Minor Resolved View vendor source →

Cloudflare experienced a minor incident on April 21, 2026 affecting Rules, lasting 2h 10m. The incident has been resolved; the full update timeline is below.

Started
Apr 21, 2026, 06:09 PM UTC
Resolved
Apr 21, 2026, 08:19 PM UTC
Duration
2h 10m
Detected by Pingoru
Apr 21, 2026, 06:09 PM UTC

Affected components

Rules

Update timeline

  1. identified Apr 21, 2026, 06:09 PM UTC

    Cloudflare has identified an issue with customers creating/updating Page Rules with the Host Header Override setting. Other settings are not impacted. We are working to mitigate the problem, more updates to follow shortly.

  2. monitoring Apr 21, 2026, 07:57 PM UTC

    A fix has been implemented and we are monitoring the results.

  3. resolved Apr 21, 2026, 08:19 PM UTC

    This incident has been resolved.