testssl

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

• 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

• Test other STARTTLS enabled protocols:

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