public open resolver list?

Spencer Coplin scoplin at
Mon Feb 1 18:23:56 UTC 2021

There are several good articles about the different ones out there and the level of filtering and response they can offer. I personally have been happy with Quad9's free DNS server ( and the basic anti-bad stuff filtering it does. You get no reporting on what it blocks, but there are services (OpenDNS for example) out there you can pay for that offer reporting if needed.

Thank you,

-----Original Message-----
From: NANOG < at> On Behalf Of Nick Hilliard
Sent: Monday, February 1, 2021 12:20 PM
To: Randy Bush <randy at>
Cc: North American Network Operators' Group <nanog at>
Subject: Re: public open resolver list?

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Randy Bush wrote on 01/02/2021 18:16:
> is there a list of public resolvers?  e.g.,,, 
> etc.?



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