http/2.0 will need encryption, also Google says HTTPS is a ranking signal – https://www.peterdavehello.org/2014/08/google-https-as-a-ranking-signal/, after set up https on our websever, what should we do next? It’s to confirm and make sure the cer and configure is safe enough to prevent from attack, here are some online testing service to help you confirm your cert and config on your webserver.
SSL Server Test by Qualys, Inc. SSL LABS (supports IPv6):
https://www.ssllabs.com/ssltest/
SSL Checker – SSL Certificate Verify:
https://www.sslshopper.com/ssl-checker.html
FairSSL BlueSSL Online Server SSL Test:
https://www.fairssl.se/en/ssltest
