Glossarycookiesdata collection

Third-Party Cookie

third-party cookiesbehavioral datacampaign measurementcross-domain trackingAdTech platforms

A cookie that is saved under a domain other than the website currently open in the user's browser. Unlike first-party cookies, which are set by the site a visitor is actively viewing, third-party cookies originate from an external domain — typically an AdTech platform embedded on that page.

AdTech platforms rely on third-party cookies to collect behavioural data across multiple sites and to measure the performance of advertising campaigns. Because the same cookie can be read whenever a user visits any site that loads the same third-party script or pixel, these cookies enable cross-domain tracking at scale.

Behavioral Data
Information collected about the online actions of users. Behavioral data typically includes past searches, browsing history, time spent on a website, ads clicked, and other signals generated through interactions with…
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Click
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Conversion Rate (CVR)
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