Minor ImpactLast updated: May 12, 2026, 21:17 UTCRefreshed just now

Issue accessing the Cloudflare IP ranges page

Started

May 12, 2026, 19:57 UTC

Resolved

May 12, 2026, 21:17 UTC

Timeline

Resolved
May 12, 2026, 21:17 UTC
This incident has been resolved.
Monitoring
May 12, 2026, 20:23 UTC
A fix has been implemented and we are monitoring the results.
Investigating
May 12, 2026, 19:57 UTC
Cloudflare is investigating an issue with https://www.cloudflare.com/ips-v4. Customers attempting to view the published list of Cloudflare IPv4 ranges may receive an HTTP 500 error. This issue is limited to the IP-ranges page on www.cloudflare.com and does not affect Cloudflare's CDN, DNS, security, or any other production services. We are working to mitigate this problem