Check Your Website's SSL Certificates

Whilst recently trying to diagnose issues I've been having with using StartCom for free SSL certificates, I found that using sslshopper.com/ssl-checker.html was a huge help. It will let you know if there are any issues and guide you on your way to rectifying them, including pointing you towards documentation, and reminding you when your certificates are about to expire.

If you are missing a StartCom chainfile, you can find them here.