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Testssl.sh is a free command line tool which checks a server's service on any port for the support of tls/ssl ciphers, protocols as well as some cryptographic flaws. A comprehensive free ssl test for your public web servers. Testssl.sh is free and open source software.
Wells Fargo Down at Jody Featherston blog
Testssl.sh is a free and open source command line tool which checks a server’s support of tls/ssl ciphers, protocols as well as recent cryptographic flaws and more. Testssl.sh is a free command line tool which checks a server’s service on any port for the support of tls/ssl ciphers, protocols as well as recent cryptographic flaws and more. You can use it under the terms of gplv2, please review the license before using it.
Follow their code on github.
It provides detailed insights into the security protocols and ciphers supported. Testing tls/ssl encryption anywhere on any port. Testssl has 2 repositories available.