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Private User Agent (PUA) Community Group

The Private User Agent (PUA) Community Group is chartered to address covert sharing of User Agent (UA) state and to improve the security of the UA in this regard. The group seeks to standardize the designs necessary to achieve these goals, to develop extensions designed to mitigate inevitable losses of functionality, and to discuss and develop implementations and test suits. Mechanisms for expressing user privacy preferences to servers and content provides are outside the scope of this group.

This document is dedicated to the Public Domain to the extent possible, and is developed under the terms of the W3C Community Contributor License Agreement (CLA).

Suggested pronunciation of PUA sounds like 'pure'.


These are working drafts or analysis of the issues or technical proposals to address the issues. A multitude of solutions are being explored at this stage, so consider adding separate pages for substantively different approaches or solutions.

Private script context

Fluid Images

Choice of Advertising Network

Digital Rights Management

Digital Rights Management (DRM) on the web deserves some discussion as it generally requires the user to forfeit some control over their own computer and this could affect user control, security, and privacy.

Digital Rights Management