Online tool to check server HTTP/2, ALPN, and Server-push support.
HTTP/2 supported!
hooks.se
Fantastic! This server supports HTTP/2.
ALPN: No ALPN, No NPN
This server does not support any of the protocol
negotiation methods. Unless the client explicitly makes an HTTP/2
request, HTTP/2 will not be used by default, and may require additional
round trips.
PUSH: Using (Link header)
This server appears to make use of HTTP/2 push. Awesome!