1.1.1.1 has been acting up for me recently as well but haven’t had a chance to investigate. Glad to hear it’s not just me

It's over a disagreement between Cloudflare and the owner of Archive.is regarding the forwarding of EDNS metadata.

See here: https://news.ycombinator.com/item?id=19828317

Yes, there was some discussion a while ago here, CloudFlare says archive.is won't reply with the correct DNS to them and the author of archive.is says CloudFlare isn't passing the correct information to his server, and he refuses to change it.

I don't remember details, I'm afraid, but it is an unfortunate situation.

Nice find. archive.is stopped working for me recently and I just assumed it had disappeared. Now I know its because I happened to change my router's resolver from 8.8.8.8 to 1.1.1.1.

Edit: Would be cool if archive.is implemented this comment https://news.ycombinator.com/item?id=19832572 (from previous HN discussion on this)