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1895 points _l4jh | 1 comments | | HN request time: 0.313s | source
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mike-cardwell ◴[] No.16730704[source]
"Cloudflare's 1.1.1.1 DNS will respond very fast, but the big sites you access, the whole reason for resolving DNS, will be SLOWER ∵ no edns-client-subnet support, so no geolocation of results." - https://twitter.com/philpennock/status/980561009961299968
replies(2): >>16731157 #>>16731439 #
1. kentonv ◴[] No.16731157[source]
edns-client-subnet leads to a surprising number of privacy concerns. See: https://00f.net/2013/08/07/edns-client-subnet/ I find the cache timing issue particularly worrying.

Cloudflare runs from 151 (and growing rapidly) locations worldwide. Without edns-client-subnet, the upstream DNS server will probably respond according to the geolocation of the Cloudflare location you're talking to -- which is probably pretty close to you, and therefore will probably produce a good outcome for you, while largely avoiding the privacy concerns.