Hello, from Sunday, I am having SSL handshake error on one of our domains in Cloudflare - byvaniedurdosik.sk. All other domains works just fine with same settings hosted at the same hosting for many years. After contacting hosting’s support, they don’t seem to see any issues with SSL on their side. Is there any additional info I can provide them with to solve this issue besides your support article, which I already sent them? Thank you in advance.
Error 525 indicates that the SSL handshake between Cloudflare and the origin web server failed. This only occurs when the domain is using Cloudflare Full or Full (Strict) SSL mode:
Troubleshooting Cloudflare 5XX errors
The issue can be related to the certificate itself, but also to an issue during the TLS handshake.
Have you checked the ssl logs on the origin for any issue?
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