W3C Invites Implementations of Tracking Preference Expression (DNT)

The Tracking Protection Working Group invites implementation of the Candidate Recommendation of Tracking Preference Expression (DNT). 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. Learn more about the Privacy Activity.