HTTPS problems.
WHAT TO ESTABLISH
What the browser says exactly.
THE COMMON CAUSES
No certificate issued for that domain or subdomain The certificate expired The site loads over HTTP Mixed content The domain does not match the certificate
THE MOST COMMON
A domain or subdomain added without running AutoSSL afterwards.
WHAT TO DO
Run AutoSSL in cPanel.
It covers every domain on the account that resolves correctly.
IF AUTOSSL FAILS FOR A DOMAIN
That domain probably does not resolve to this server.
Check the DNS first. AutoSSL cannot validate a domain that does not point here.
FOR MIXED CONTENT
The padlock breaks when a secure page loads insecure resources.
Update hardcoded HTTP addresses.
FOR AN EXPIRED CERTIFICATE
AutoSSL should renew automatically. If it did not, check for validation failures.
FOR EXTERNAL DNS
Records must be correct at that provider before AutoSSL can validate.
WHAT TO CHECK AFTERWARDS
Every page loads securely, and HTTP redirects to HTTPS.
