Command prompt to check TLS version required by a host

You can check using following commands.

For TLS 1.2:

openssl s_client -connect www.google.com:443 -tls1_2

For TLS 1.1:

openssl s_client -connect www.google.com:443 -tls1_1

For TLS 1:

openssl s_client -connect www.google.com:443 -tls1

If you get the certificate chain and the handshake then the TLS version is supported. If you don’t see the certificate chain, and something similar to “handshake error” then its not.