As far as I am aware, all previous issues with archive.today and Cloudflare were on account of archive.today taking measures to stop Cloudflare's DNS from correctly resolving their domains, not the other way around.

The current situation is due to Cloudflare flagging archive.today's domains for malicious activity, Cloudflare actually still resolves the domains on their normal 1.1.1.1 DNS, but 1.1.1.2 ("No Malware") now refuses. Exactly why they decided to flag their domains now, over a month after the denial-of-service accusations came out, is unclear, maybe someone here has more information.

Have they? The thing I remember previously was archive.is, and it wasn’t a block, archive.is was serving intentionally wrong responses to queries from cloudflare’s resolvers.

This is notably not a change to how 1.1.1.1 works, it’s specifically their filtered resolution product.

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

Intentionally, I believe? archive.today iirc has explicitly blocking Cloudflare from resolving them at various times over the years due to Cloudflare DNS withholding requesting-user PII (ip address) in DNS lookups.

Looking forward to when Google Safe Browsing adds their domains as unsafe, as that ripples to Chrome and Firefox users.

> Cloudflare dns has gone back and forth.

Just tells me they are an unreliable resolver. Instead of being a neutral web infra, they actively participate in political agendas and censor things they "think" is wrong.