W3C home > Mailing lists > Public > public-tracking@w3.org > July 2012

Re: Frequency Capping

From: Roy T. Fielding <fielding@gbiv.com>
Date: Thu, 12 Jul 2012 12:12:06 -0700
Cc: W3C DNT Working Group Mailing List <public-tracking@w3.org>
Message-Id: <8025B00A-CDC7-47FE-9838-63B88FA2517A@gbiv.com>
To: Peter Eckersley <peter.eckersley@gmail.com>
On Jul 11, 2012, at 7:53 PM, Peter Eckersley wrote:
> Our reasons for insisting that unique ID cookies must never be used under a Do Not Track standard have been discussed many times on this list and in F2Fs. 

Yes, and it has been rejected many times because the ID cookies are
used by other features that won't be turned off by DNT.  That is why
we should focus on privacy solutions regarding what can be retained
on the server, rather than on a single tagging mechanism.
It would be nice if we could make progress on the issues.

> There are many, but the deepest is that unique IDs (whether for f-capping or any other purpose) make it impossible to remotely test compliance with the standard.

Which is not a goal of the WG effort.  What we have are goals to
discover claims of compliance, make tracking transparent, and give
regulators the basis on which to compare published behavior with
actual behavior (using the powers that they already have for testing).

Received on Thursday, 12 July 2012 19:12:28 UTC

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