What is HTTP/2?
Without boring the pants off you, HTTP/2 is an updated and more efficient way of delivering web site components from server to browser. There are 3 conditions:
- Browsers have to support it – most of them do now.
- Servers have to support it. Many do, ask your host about it. If they don’t, using Cloudflare will enable HTTP/2
- Your site has to use HTTPS
Now that it’s becoming increasingly widespread, most articles on the topic make sweeping promises of faster performance, “just like that”, simply by enabling it. But there are fewer articles which actually back up these claims with test results.
I recently converted a couple of sites from HTTP to HTTPS and decided to take the opportunity to see what difference, if any, enabling HTTP/2 made.