How to check if website has http/2 protocol support

Question

There is a lot of topics about http/2 protocol, but I wonder if there is a working website with this protocol.

i.e.

We can decide to use http:// o

Answer 1

You can just check it in: Chrome Dev Tool (F12) > Network > Protocol

It will tell you the protocol used and the domain of each transfer.

Legend

http/1.1 = http 1.1
h2          = http 2.0

Note: If you cannot see the Protocol column just right-click on any header and check the "Protocol" label.