Check your current HTTPS setup

Using the command line - OpenSSL

  1. Open a terminal.
  2. Run openssl s_client -showcerts -connect www.example.com:443 </dev/null, with your domain name.
  3. If successful, you’ll receive a complete output of what a browser uses to establish secure HTTP.

Using an online tool - DigiCert

  1. Browse to an online certificate checking service such as: https://www.digicert.com/help
  2. Enter your domain name and initiate the check
  3. Verify your setup receives a tick at the bottom of the test