I will say that today, for the first time in a long time, I seem to be able to click this link and actually get the page to load... But it has been an issue for a long time.
But, as an explanation: https://jarv.is/notes/cloudflare-dns-archive-is-blocked/
> ... Archive.is’s owner is actively refusing to resolve their own website for 1.1.1.1 users because Cloudflare’s DNS offers too much privacy.