- Install OpenSSL on your machine
- Open commend prompt and run the following command to check whether high encryption ciphers are being accepted:
C:\OpenSSL-Win32\bin>echo|openssl s_client -connect name.domain.com:443 -cipher HIGH
Note: Substitute HIGH with LOW to check if low encryption ciphers are being accepted. A properly configured site would not allow LOW encryption ciphers. You can also substitute the FQDN with an IP address.