Hi, The http2 option is enabled for https://jxi.fr in ISP Config. As you can see, the http header gives "Upgrade: h2" which indicates HTTP/2 is available but it's still in HTTP/1.1. Also, the vhost looks good for the port 443. I got: [...] Protocols h2 http/1.1 SSLProtocol All -SSLv2 -SSLv3 Also, http2 mod is enabled. Any clue why the website is still in HTTP/1.1 ? Thanks