I believe cloudflare only blocked archive.is on their "Families" filtered dns. I've been using their normal 1.1.1.1 and haven't encountered any blocks.

IIRC the block was on archive.today's side as a protest against 1.1.1.1 intentionally not supporting ECS.

https://news.ycombinator.com/item?id=36971650

https://news.ycombinator.com/item?id=19828702

This is what I am referring to. But from an end-user side, one option does not work, and one does work. Then I will use the working DNS.

Yesterday 1.1.1.1 failed to resolved "theinformation.com" (hosted on CF itself!) for many hours, answering NXDOMAIN.