#Website has randomly 521 error

7 messages · Page 1 of 1 (latest)

glacial sparrow
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The site is probably just offline, but you're seeing a cached version on your phone.

rapid willow
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well, at least it makes more logical sense now. You've just gotta fix the root issue: https://community.cloudflare.com/t/community-tip-fixing-error-521-web-server-is-down/42461
Investigate what's wrong with your web server

Cloudflare Community
Community Tip - Fixing Error 521: Web server is down

Error Try the suggestions in this Community Tip to help you fix Error 521: Web server is down. Background A 521 error happens when we are unable to make a TCP connection to your origin server. Specifically, Cloudflare tried to connect to your origin server on port 80 or 443, but received a connection refused error. This is often caused by sec...

opal fox
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Website has randomly 521 error

rapid willow
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yea, sounds like you have a problem with your origin web server. If it's shared host, bring it up with them. If it's a self-hosted server/vps, check if you can reach it via ssh/etc

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that's a good first step, then you should check web server logs/status when it's down and see if you can find anything

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whatever your webserver is

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if kuma fetching a cached endpoint? If so, probably why it thinks its online