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DoH Preference Hints for HTTP
draft-schinazi-httpbis-doh-preference-hints-01

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Expired".
Expired & archived
Authors David Schinazi , Nick Sullivan , Jesse Kipp
Last updated 2020-07-11 (Latest revision 2020-01-08)
RFC stream (None)
Formats
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

When using a publicly available DNS-over-HTTPS (DoH) server, some clients may suffer poor performance when the authoritative DNS server is located far from the DoH server. For example, a publicly available DoH server provided by a Content Delivery Network (CDN) should be able to resolve names hosted by that CDN with good performance but might take longer to resolve names provided by other CDNs, or might provide suboptimal results if that CDN is using DNS- based load balancing and returns different address records depending or where the DNS query originated from. This document attempts to lessen these issues by allowing the web server to indicate to the client which DoH server can best resolve its addresses. This document defines an HTTP header field that enables web host operators to inform user agents of the preferred DoH servers to use for subsequent DNS lookups for the host's domain.

Authors

David Schinazi
Nick Sullivan
Jesse Kipp

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