HTTP 521 - CloudFlare Timeout

UptimeRobot occasionally (say, several times per month) reports that my site is down for a few minutes at a time and says the root cause is “HTTP 521 - Cloudflare Timeout”. This error seems to occur randomly, when I’m not making any changes to the site.

I’ve read a few comments in here indicating that the problem is with the origin server and not with Cloudflare. Is that correct?


Hello akira


This topic was automatically closed 15 days after the last reply. New replies are no longer allowed.