Would like to point out that Cloudflare's resolver is EDNS compliant, it just doesn't send the client subnet.
See: https://twitter.com/archiveis/status/1018691421182791680 (picture of tweet https://aws1.discourse-cdn.com/cloudflare/optimized/3X/8/2/8... )
Based on that tweet, the owner has a personal grudge against Cloudflare and is choosing to return bad results.
https://ednscomp.isc.org/ednscomp/6ed2aca587
EDNS Compliance Tester says that archive.is has some issues.
> Minor problems detected! > This domain does not support latest DNS standards.