curl -Iv https://www.google.com/
* About to connect() to www.google.com port 443 (#0)
* Trying 2a00:1450:401b:802::2004...
* Connected to www.google.com (2a00:1450:401b:802::2004) port 443 (#0)
* Initializing NSS with certpath: sql:/etc/pki/nssdb
* CAfile: /etc/pki/tls/certs/ca-bundle.crt
CApath: none
* SSL connection using TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256