Dear Community, i’m running my website mydomain(dot)com on Cloudflare with the Setting SSL Full. I’m also using a service called cloudapp that I have set with a custom url share.mydomain(dot)com that worked always fine. For one day now however the share.mydomain(dot)com throws a 521 error [Scre…

If you set that hostname to :grey: and it doesn’t work, then there’s something wrong with your server configuration. https://stackoverflow.com/ is a good place to go for help with server configuration problems.

Sudden 521 for subdomain

Website, Application, Performance DNS & Network

sdayman February 17, 2020, 2:18pm 4

Well…that certainly explains the 521. Your server isn’t working.

1 Like

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Sudden 521 for subdomain

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