- From: Justin Brookman <jbrookman@cdt.org>
- Date: Wed, 11 Jun 2014 10:31:54 -0400
- To: Roy T. Fielding <fielding@gbiv.com>
- Cc: W3C DNT Working Group Mailing List <public-tracking@w3.org>
On Jun 6, 2014, at 2:42 PM, Roy T. Fielding <fielding@gbiv.com> wrote: > On Jun 5, 2014, at 11:59 AM, Justin Brookman wrote: > >> That is Ad X could collect and store data on behalf of Sites 1-300, and then serve targeted ads based on any one of those 300 silos when a user visits Sites 301? As long as the contracts allow this and prohibit use of blended data across silos? > > I don't understand how "serve targeted ads based on" some other site would > be allowed unless both sites are owned by the same first party. > Otherwise, that is tracking: "use of data derived from that activity outside > the context in which it occurred". Note that the definition of tracking > doesn't care whether the tracker is a service provider; it only cares > about the context in which that data was collected. > > ....Roy > It's used outside the context the data was collected, but it's not necessary cross-site tracking data if it's just held on behalf of a publisher, right? So if ADNET is a service provider to Shoes.com, Diapers.com, Hats.com, Social.com, and dozens of other publishers, it can collect target ads on News.com based on any one of those silos (say a retargeted ad for a shoe that the user looked at, or something based on the user's activity on Social.com). Assuming that we adopt your definition of service provider and resolve ISSUE-219 to allow first party data to be used in other contexts. Or am I misinterpreting the service provider language?
Received on Wednesday, 11 June 2014 14:32:25 UTC