A cookie saved in a domain other than the currently opened website. It is typically used by AdTech platforms to collect Behavioral data and measure the performance of campaigns.
![](https://clearcode.cc/app/uploads/2019/08/Attribution-article-_dead-cookies-_EN-800x253-1.png)
A cookie saved in a domain other than the currently opened website. It is typically used by AdTech platforms to collect Behavioral data and measure the performance of campaigns.
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