Hello Darko, This is a server misconfiguration. Servers need to supply the full certificate chain to a trusted root certificate, not just their end certificate. Qualys's excellent ssltest tool caps the grade for this server at B as a result of this misconfiguration:
https://www.ssllabs.com/ssltest/analyze.html?d=harpers.org "This server's certificate chain is incomplete. Grade capped to B. " Thanks ** Changed in: ca-certificates (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1700757 Title: Missing intermediate certificate from Digicert - "DigiCert Sha2 Secure Server CA" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ca-certificates/+bug/1700757/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs