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ISSUE-59: Should the first party be informed about the DNT values sent to third parties

From: Matthias Schunter <mts-std@schunter.org>
Date: Sun, 24 Jun 2012 01:11:27 +0200
Message-ID: <4FE64D1F.6080604@schunter.org>
To: "public-tracking@w3.org" <public-tracking@w3.org>
Hi DNT team,

my suggestioin to resolve this issue (based on our revised user-granted
exception approach)

1. If a first party receives DNT;1, it can assume that its third parties
(in general) also receive DNT;1
2. If a first party receives DNT;0, it can assume that its third parties
(in general) also receive DNT;0
3. If it needs more information, it can call the exceptioin API
3. If it needs _reliable_ information, this must to be retrieved from
the third parties.

Why "in general"?
- In general, a site-wide exception for this first party should trigger
sending DNT;0 while else DNT;1 is sent
- The web-wide exceptions are implemented client side and user agents
must be considered unreliable.
- This simple signal cannot reflect the compexity of user preferences.
   The most simple example is that DNT;1 will be sent even if some third
parties have a web-wide exception.

Note that I believe that there is no need for more signaling (DNT;2, 3,
...). I hope you all agree (if not, please tell me so).

Comments / Feedback?

Received on Saturday, 23 June 2012 23:11:51 UTC

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