Error 525 Hand shake failed between cloudflair and domain


We have recently configured cloudfalir account for our domain. Now we are getting 525 issue sometimes. SSL configuration on our host is absolutely fine.

Can you please help ? What others things I could probably check to figure the issue out.


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:
Error 525: SSL handshake failed

I would recommend you contact your hosting provider to exclude the following common causes at your origin web server:

  • No valid SSL certificate installed
  • Port 443 (or other custom secure port) is not open
  • No SNI support
  • The cipher suites accepted by Cloudflare does not match the cipher suites supported by the origin web server
1 Like

There is a Community Tip on dealing with the 525 errors you are seeing.


This topic was automatically closed after 30 days. New replies are no longer allowed.