I don't doubt you're having issues accessing the page, but I am not. It instantly opened earlier in Safari on my Mac under Big Sur. I went to the page again just now on my iPad. Same thing. The page opened instantly and showed what I expected to see.
Did BDAqua's notes help at all? That is, do you have what most here consider garbage apps running? What about an ad blocker? I recently tried Block Bear just to see why it was getting so much attention. It stunk. It blocked so many legitimate sites from opening I dumped it after less than 10 minutes of testing and went back to Ka-Block!, which I've never had problems with.
Besides a different browser, have you tried booting into Safe Mode and accessing the page?