Re: More blocking tools than DNT

Well timed, Mike -- Cookie Clearinghouse is, indeed, talking about how to identify a consent cookie. One of my current to do items is to write up our current thinking in order to present it for external feedback. 

	Aleecia


On Jul 30, 2013, at 3:38 AM, Mike O'Neill <michael.oneill@baycloud.com> wrote:

> Walter,
> 
> If you mean a site-initiated signal, rather than one implemented by the ad
> blocker itself, no new tech is needed. All you need is a cookie with a
> well-known name placed by the site(W3CTP=ADB=0). If it is in the Set-Cookie
> header the ad blocker can see it before it decides to block script.  The
> problem would be how would you validate sites i.e. it cannot be too easy for
> sites to create a signal to switch off ad blocking without getting user
> consent, or the ad blockers would just not implement it. Maybe there is a
> role here for the Cookie Clearinghouse, validating sites which get user
> consent before placing the (switch off ad blocking) cookie.
> 
> The signal should be independent of DNT because you might want to let your
> user see (contextual) ads but let them choose not be tracked. You should be
> able to place W3CTP=ADB=0&TPB=0 for instance, which would disable ad
> blocking and enable (or not disable the default) third-party cookie
> blocking.
> 
> It would be difficult to base the mechanism on a JavaScript API (setting an
> instance variable for example) because ad blockers have to make their
> blocking decisions before rendered script is executed.
> 
> 
> Mike
> 
> 
> -----Original Message-----
> From: Walter van Holst [mailto:walter.van.holst@xs4all.nl] 
> Sent: 30 July 2013 07:49
> To: public-tracking@w3.org
> Subject: Re: More blocking tools than DNT
> 
> On 29/07/2013 23:12, Rigo Wenning wrote:
>> Hi all,
>> 
>> http://gigaom.com/2013/07/29/privacy-as-the-next-green-movement-study-
>> says-companies-will-compete-on-data-practices/
>> 
>> has a report on a study from Forrester that is allegedly coming out 
>> next week where they show that 27% use ad blockers and only 18% use 
>> DNT. I found this interesting. There is UGE in DNT. Should there be an 
>> UGE in adblockers? I think so. At least I'm missing that feature. A 
>> working DNT may get them there...
> 
> There are rudimentary UGE-mechanisms in the current crop of ad-blockers, but
> none can be triggered by a website. So yes, that would be a perfect use case
> for UGE.
> 
> Regards,
> 
> Walter
> 
> 
> 
>

Received on Wednesday, 31 July 2013 01:10:18 UTC