SSL Installation Checker

Diagnose problem with your SSL Certificate installation.

Verify and diagnose the installation make sure certificate correctly installed, valid, trusted and without vulnerability flaws.

If you want to check SSL installation on your own computer, run this OpenSSL command:

openssl s_client -connect www.example.com:443
SSL Installation Checker
SSL Installation Checker

Certificate information

  • Common name:
  • Organization:
  • Department:
  • Locality:
  • State:
  • Country:
  • Altername name:
  • Signature Algorithm:
  • SHA256 Fingerprint:
  • Valid from:
  • Valid until:

Server information

  • ALPN:
  • Revocation information:
  • Revocation status:
  • HSTS:
  • Secure Renegotiation:
  • Forward Secrecy:

Certificate chain
Host: AAAA
Organization: BBBB
Host: AAAA
Organization: BBBB
Host: AAAA
Organization: BBBB
Host: AAAA
Organization: BBBB
Host: AAAA
Organization: BBBB