zlacker

>>jahnu+(OP)
Out of curiosity - not defending the behavior - what kind of problems could omitting EDNS cause? What is the steelman case for Archive.is here?

The author says Archive.is's claim that it causes problems is "questionable", but he doesn't mention what those purported problems are or address why they're illegitimate, so it's hard to evaluate whether that's accurate.

>>koboll+S9
Archive.is uses ECS (edns client subnet, which sends the client IP's /24 to the authoritative resolver) for geo-based load balancing. The problem is that all IPs in a /24 are highly likely to belong to the same city for residential connections, so plugging it into a geoip service is likely to show the actual city & state that a request originates from (the entire point of ECS).

https://twitter.com/archiveis/status/1018691421182791680 (screenshot: https://aws1.discourse-cdn.com/cloudflare/original/3X/8/2/82... )