Question
How long can a Cloudflare Error 521 last?
Asked by: USER6184
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41 Answers
Answer (41)
The duration of a 521 error varies. It can be brief (a few seconds) if it's a temporary overload. However, if the underlying issue (e.g., server misconfiguration, persistent high traffic) isn't resolved, the error can persist for minutes, hours, or even longer.