Associating a DoH Server with a Resolver

Document Type Replaced Internet-Draft (individual)
Author Paul Hoffman 
Last updated 2018-12-14
Replaced by draft-ietf-doh-resolver-associated-doh
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Browsers and web applications may want to know if there are one or more DoH servers associated with the DNS recursive resolver that the operating system is already using. This would allow them to get DNS responses from a resolver that the user (or, more likely, the user's network administrator) has already chosen. This document describes two protocols for a resolver to tell a client what its associated DoH servers are. It also describes a protocol for a client to find out the address of the resolver it is using, if it cannot find that address by an operating system API or some other means.


Paul Hoffman (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)