Gametracker is only HTTPS but left4dead2 in-game web page (H button) is only accept http web pages . Old gametracker is http and https accept , but new update is only https . My in-game web page gametracker is not working .

Sorry for my low english.

Why do you depend on GameTracker so much? There are so many ways that you can make any feature that you see here on your own, including banners, player lists, server information and so on.

Plus you should be ready to do some programming on your end if you plan on being serious about your server and community, or hire someone who can program it for you. GitHub has it all for get you and your programmers going.

I hardly doubt GameTracker will drop their Cloudflare HTTPS only mode and risk their security just for the functionality your server. HTTPS is becoming the standard now, and already is.