CR: Tracking Preference Expression (DNT)

Tracking Preference Expression (DNT)

http://www.w3.org/TR/2015/CR-tracking-dnt-20150820/

feedback due by: 2015-11-20

Abstract

This specification defines the DNT request header field as an HTTP mechanism for expressing the user's preference regarding tracking, an HTML DOM property to make that expression readable by scripts, and APIs that allow scripts to register site-specific exceptions granted by the user. It also defines mechanisms for sites to communicate whether and how they honor a received preference through use of the Tk response header field and well-known resources that provide a machine-readable tracking status.

Status of the Document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.

This document was published by the Tracking Protection Working Group as a Candidate Recommendation on 20 August 2015. This document is intended to become a W3C Recommendation. If you wish to make comments regarding this document, please send them to public-tracking-comments@w3.org (subscribe, archives). W3C publishes a Candidate Recommendation to indicate that the document is believed to be stable and to encourage implementation by the developer community. This Candidate Recommendation is expected to advance to Proposed Recommendation no earlier than 20 November 2015. The Working Group expects to have sufficient implementation experience by 20 February 2016. All comments are welcome.

Readers may review changes from the Last Call Working Draft; changes include: moving JavaScript property to navigator; addition of a tracking status value for gateways; clarifications of terminology; and updated references. An issue tracking system is available for recording raised, open, pending review, closed, and postponed issues regarding this document. There is also a list of issues reported and addressed during the Last Call period.

The following feature is at risk and might be cut from the specification during the CR period if there are no (correct) implementations:DNT-extension

Please see the Working Group's implementation report.

Publication as a Candidate Recommendation does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

This document is governed by the 14 October 2005 W3C Process Document.