testssl
Check SSL/TLS protocols and ciphers supported by a server.
TLDR
Test a server (run every check) on port 443
$ testssl [example.com]
Test a different port
$ testssl [example.com:465]
Only check available protocols
$ testssl --protocols [example.com]
Only check vulnerabilities
$ testssl --vulnerable [example.com]
Only check HTTP security headers
$ testssl --headers [example.com]
