[dns-operations] Public resolvers with EDNS Client Subnet

[Willem Toorop]

Hi Jan,

I do not have a list either, but I have counted resolvers on RIPE Atlas
for which the o-o.myaddr.l.google.com. TXT query reports a ECS value.

https://dnsthought.nlnetlabs.nl/does_ecs/#top_auth_asns

Besides Google and OpenDNS, VeriSign is showing up there quiet
prominently too.

-- Willem

PS. Other ASes - that do not do ECS 0 spill over a bit when they are
part of resolvers that forward to multiple other resolvers, of which one
is supporting ECS.  Hence a portion of false positives in the graphs.

Op 24-06-2020 om 15:10 schreef Jan Včelák:
> Hello.
> 
> I'm looking for a list of public resolvers that utilize EDNS Client
> Subnet when sending queries to authoritative servers. I'm especially
> interested in the ones that require some kind of opt-in to enable the
> feature. Is anyone aware of such a list?
> 
> Thank you. Regards
> 
> Jan / NS1
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