Hello team Cloudflare,
Recent days, my website usually is errored 521 (webserver down).
My website: Click here
So, I contacted to my hosting provider and they told me they hadn’t found ant error (so strange).
And the Cloudflare sent me an email: http://prntscr.com/optn1b
I had tried their solution but no change.
What need I do?
Hi @caphefinvn, the email you received is from Cloudflare to notify you the origin server was unavailable for at least 5-minutes, this tip gives the background, Community Tip - Email alert, origin unreachable. You can opt out of receiving the alert from the email and the above tip has a links on how to troubleshoot if the 521 becomes/is a persistent issue.
but the 521 error usually occur
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