How recently did you set up the page?
DNS propergation takes up to 72 hours so that might be part of the problem.
Otherwise we’ll need more details to help debug
UPDATE:
Seems to be working for me. Can you view the page on a different network or mobile data?
I use Cloudflare WARP
Maybe it’s the problem because it can’t detect the real IP server.
Might be. Or it might have a safety filter that’s decided to block the *.gt.tc domain…
