My web hosting company can’t explain this.
My website is old school static, just HTML, CSS and js files. Nothing fancy.
No VPN, it loads fine. With VPN (various, but in my case Mullvad) it won’t load. I get this screenshot. All other sites load fine with that vpn!
It was IP6 issues!
My hosting provider had not provided the IP6 address, so I didn’t input it to the DNS records. After a month of back and forth they finally coughed up this information, and I’ve added it to the records, and everything works.
I’ve no idea why they didn’t give it to me in the first place!