Unknown: x509: certificate signed by unknown authority

[sreelancer]

based on the topic: Revoking certain certificates on March 4
I crossed checked my domain through the below link whether my domain is affected
https://checkhost.unboundtest.com,
For my domain, I got the error message as unknown: x509: certificate signed by unknown authority
For a doubt, I renewed the certificate still having the same issue.
My domain https://rrbthiruvananthapuram.gov.in
Please clarify what is the issue in the SSL certificate

[9peppe]

Your certificate chain is incomplete. https://www.ssllabs.com/ssltest/analyze.html?d=rrbthiruvananthapuram.gov.in&hideResults=on

Are you telling Apache where fullchain.pem is?

https://httpd.apache.org/docs/2.4/mod/mod_ssl.html#sslcertificatefile

[jsha]

Thanks for the report! As @9peppe says, you have a minor misconfiguration in your site that will make it fail to load in some browsers (aside from the revocation issue).

I’ve tweaked checkhost.unboundtest.com so it can give useful results about the revocation status even with the misconfiguration.