TLS 1.2
How to test for TLS 1.2 support
OpenSSL
$ openssl s_client -connect google.com:443 -tls1_2 | grep Protocol ... Protocol : TLSv1.2
nmap
$ nmap -sV --script ssl-enum-ciphers -p 443 google.com
$ openssl s_client -connect google.com:443 -tls1_2 | grep Protocol ... Protocol : TLSv1.2
$ nmap -sV --script ssl-enum-ciphers -p 443 google.com