DART Ad-Serving and Search Cookie Opt-Out

DoubleClick’s DART cookie is used by its ad-serving and search products, on the Google content network and certain Google sites, including YouTube. This cookie is not client-specific. This means that, if you choose to opt out of DoubleClick’s DART cookie, your opt-out cookie will be effective for all of the websites and advertisers that use DoubleClick’s ad-serving or search technologies, including the Google content network. Please note that most major third-party online advertising companies have agreed to provide an opt-out mechanism for their ad cookies. For more information, please visit www.networkadvertising.org.

Please also note that the websites and advertisers that use DoubleClick’s DART cookie are required to post a privacy statement that describes their data collection activities in connection with their use of ad-serving or search technologies. For more information on these activities, please consult the privacy policies for those websites and advertisers. For the privacy statement with respect to Google’s use of DoubleClick’s DART cookie on the Google content network, please click here.

If you do not want a unique DART cookie from DoubleClick, there is a simple procedure to follow. Click here to replace your unique DART cookie with an opt-out DART cookie

If you select a DART opt-out cookie, ads delivered to your browser on behalf of clients using DoubleClick’s ad-serving technology will be targeted based only on the non-personally identifiable information that is automatically transmitted in the Internet environment when an ad request is received by our ad servers, and your DART cookie will not be uniquely identified. The non-personally identifiable information that is automatically transmitted includes your browser type, Internet service provider, information about the general content of the site or page displayed on your browser and other non-personally identifiable information provided by the site.


 

Before Opting Out

After Opting Out

Cookie Value

 Unique, e.g., id= 8000002cd6f0880

 Generic, id = OPT_OUT

Targeting Criteria

 Cookie-derived information:

  • Ad frequency limitation
  • Ad sequencing
  • User list

Not Applicable

  Ad Tag information:

  • Site name
  • Web page
  • Key values

  Ad Tag information:

  • Site name
  • Web page
  • Key values

  Header fields information:

  • Operating System type
  • Windows version
  • User’s local time
  • Location information from IP address

  Header fields information:

  • Operating System type
  • Windows version
  • User’s local time
  • Location information from IP address

Will You Still See Ads?  

Yes

Yes

What happens if I choose to opt out?

The system will assign you a cookie with the following "value": id=OPT_OUT instead of a cookie that contains a unique string of characters, e.g. id=8000002cd6f0880

When you receive this cookie, DoubleClick’s systems will know that you have opted out and will not attempt to assign other DART cookies in the future. Since the DoubleClick opt-out cookie does not contain a unique user number, it does not allow your browser to be identified uniquely.

PLEASE NOTE that if you erase or otherwise alter your browser’s cookie file (including upgrading certain browsers) you may need to opt out again.

PLEASE NOTE that opting out of the ad-serving cookie does not mean that you will stop seeing either pop up advertising or banner ads embedded in websites! You can control many pop ups by using free software available on the Internet or by disabling JavaScript on your browser. DoubleClick has no control over the use or frequency of pop-up ads employed by website publishers or software manufacturers. For more information about pop-up ads, please click here.

Opt-out