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HTTP Client Hints

Document Type Replaced Internet-Draft (candidate for httpbis WG)
Expired & archived
Author Ilya Grigorik
Last updated 2015-10-14 (Latest revision 2015-08-24)
Replaced by draft-ietf-httpbis-client-hints
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state Call For Adoption By WG Issued
Document shepherd (None)
IESG IESG state Replaced by draft-ietf-httpbis-client-hints
Consensus boilerplate Unknown
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This Internet-Draft is no longer active.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:


An increasing diversity of Web-connected devices and software capabilities has created a need to deliver optimized content for each device. This specification defines a set of HTTP request header fields, colloquially known as Client Hints, to address this. They are intended to be used as input to proactive content negotiation; just as the Accept header allows clients to indicate what formats they prefer, Client Hints allow clients to indicate a list of device and agent specific preferences.


Ilya Grigorik

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