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HTTP Client Hints

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 "Replaced".
Expired & archived
Author Ilya Grigorik
Last updated 2013-09-16 (Latest revision 2013-03-15)
Replaced by draft-ietf-httpbis-client-hints, RFC 8942
RFC stream (None)
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This Internet-Draft is no longer active.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:


An increasing diversity of connected device form factors and software capabilities has created a need to deliver varying, or optimized content for each device. Client Hints can be used as input to proactive content negotiation; just as the Accept header allowed 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.)