4 ms·

How else could it be done?

• mcormier 15y ago
  On the server side. Associated with your account.
  • jonknee 15y ago
    With what account? Google serves on a ton of third party sites (and not just through AdSense, DoubleClick is huge). And that would require you to sign in to Google before you are opted-out, regardless if you were using Google or not. I use an plugin provided by Google to do the same thing, no worries about a cookie disappearing. http://www.google.com/ads/preferences/html/intl/en/plugin/ http://www.google.com/ads/preferences/html/intl/en/plugin/
• rachelbythebay 15y ago
  You'd need some kind of browser extension (aha!) to purposely keep that placeholder cookie set. Then you've just traded one problem for another. Now, if the browser came with it, and defaulted to on, then we'd really have something to talk about.
• beaumartinez 15y ago
  An HTTP header.