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}}