Solved: Error 526 Invalid SSL Certificate
Getting Error 526: Invalid SSL certificate Cloudflare error.
Cause of the problem
Error 526 indicates Cloudflare is unable to successfully validate the SSL certificate on the origin web server and the SSL setting in the Cloudflare SSL/TLS app is set to Full SSL (Strict) for the website.
- If the origin server is configured to use a self-signed certificate, install
a valid certificate on your origin server. To test to see if your origin has
a self-signed certificate, run the following cURL command and replace the
http://example.comwith your domain and
184.108.40.206with your origin IP.
curl -svo /dev/null --resolve example.com:443:220.127.116.11 https://example.com/
The response from an origin server with a self-signed certificate will
SSL certificate problem: self signed certificate. A self-signed
certificate secures the connection between Cloudflare and your origin but will
cause a 526 error when you try to connect to the origin directly.
- Check to make sure the certificate hasn’t expired, the certificate isn’t revoked, and that the certificate is signed by a certificate authority
- Check to make sure the requested domain name (hostname) is in the certificate’s Common Name or Subject Alternative Name (SAN) configuration
When you are accessing the HTTPS secured website a series of steps is taken in the background to ensure that the connection is safe and trusted. Some of these steps consist of checking certificates. If the browser does not believe that the connection would be secure it displays this error.Questions
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