List of common certificate verification error messages

See the Troubleshooting Certificate Verification Failures section for more information on each of these errors.

1. CA explicitly denied
2. Certificate has expired
3. Certificate is not yet valid
4. Certificate revoked
5. Client certificate requested
6. Common Name does not match URL
7. Invalid CA certificate
8. Self-signed certificate
9. Self-signed certificate in certificate chain
10. Unable to get local issuer certificate
11. Unable to verify the first certificate
12. Unknown revocation state