Browser displaying the following error:
which prevents you from accessing the site
Couse of the problem
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.
Check your SSL certificate
Perform an SSL Server Test on the SSLlabs . If there is a problem with SSL on your server it will tell you the exact cause.
Check if your SSL certificate name is mismatching
These are possible reasons for mismatch:
- Your website does not use SSL but shares IP with a site that does.
- The website doesn't exist anymore, yet the domain is still pointing to the old IP where a different website is hosted
- The website uses CDN that doesn't support SSL
- The domain name alias is for a website whose name is different, but the alias was not included in the certificate
Update your browser
This error also occurs in old and outdated browsers. Try updating your browser to the newest version and try loading the website again.
Solved: Error 526 Invalid SSL Certificate
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.Questions
The usual cause is that the implementation of SSL on your server is not correct. The error is usually caused by a server-side problem which the server administrator will need to investigate.Questions
Solved: Invalid command ‘SSLEngine
This frequently happens on fresh Apache servers. When Apache starts it reads through the configuration files. When it encounters `SSLEngine` directive, it considers it as unknown. This is caused by the fact that the server’s basic configuration does not have `mod_ssl` module installed or enabled.Questions
A NET::ERR_CERT_COMMON_NAME_IN error occurs when the domain the SSL certificate is installed on is not listed on the certificate (either as the common name, subject alternative name or covered by a wildcard).Questions
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