Who are you using for DNS? If Cloudflare there is a long running squabble between Archive's admins and CF as CF refuses to forward EDNS Client Subnet information and so they return bogus information to Cloudflares servers. Their admin has accounts here but they rarely interact and seem to keep creating new accounts.

It responds fine for me but I am using my own DNS server that talk directly to the root/tld servers.

Here are some other public DNS servers. [1] ...not my site

Alternatively use 107.189.8.227 in your hosts file for each of those names for now though it does change.

[1] - https://dnschecker.org/public-dns