testssl

Check SSL/TLS protocols and ciphers supported by a server. More information: https://testssl.sh/.

testssl example.com

testssl example.com:465

testssl --protocols example.com

testssl --vulnerable example.com

testssl --headers example.com

testssl --starttls ftp|smtp|pop3|imap|xmpp|sieve|xmpp-server|telnet|ldap|irc|lmtp|nntp|postgres|mysql example.com:port