The W3C Validation Service validates multiple versions of XHTML and HTML, outputting many useful errors and warnings to help users create a standards-compliant web page.
This is a guide for site operators deploying the Platform for Privacy Preferences (P3P). It provides information on the tasks required, and gives guidance on how to best complete them.
This is the specification, W3C recommendation date: 16-05-2002, of the Platform for Privacy Preferences (P3P). This document, along with its normative references, includes all the specification necessary for the implementation of interoperable P3P app...