[satysin]

It's a long story! https://jarv.is/notes/cloudflare-dns-archive-is-blocked/

In short if you use Cloudflare's 1.1.1.1 DNS then some archive.is domains won't load so you should perhaps use another DNS server.

Edit: Not because 1.1.1.1 is in the wrong it is just what the person behind archive.is recommends as he will not be changing his position and neither will Cloudflare so it's a bit of a stalemate.

[arjvik]

Interesting. If this becomes a widespread practice, I suppose Cloudflare could start including bogus client subnet values in its upstream requests.

[whatgoodisaroad]

this story does more to persuade me to switch to 1.1.1.1