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Targeting · BEH

Behavioral Targeting

Behavioral targeting reaches users based on their observed past actions "” pages visited, searches, purchases, and engagement "” building profiles that predict interest and intent.

Updated 2025-07-06 Author Luc Dumont Reading time ~4 min

Key takeaways

  • Behavioral targeting uses observed past actions to predict interest.
  • Retargeting "” re-reaching site visitors "” is its most common application.
  • It historically depended heavily on third-party cookies.
  • Cookie loss shifted it toward first-party and logged-in environments.

Behavior as a signal

Behavioral targeting assumes past action predicts future interest. Someone who browsed hiking boots is likely in-market for outdoor gear. The most familiar form is retargeting: showing ads to people who previously visited a site or abandoned a cart.

Cross-site behavioral tracking depended on third-party cookies, so open-web behavioral targeting and retargeting were among the hardest hit by deprecation. The behavior signal survives best inside first-party and logged-in environments, where a company observes activity it owns.

At a glance
SignalObserved past actions
Classic useRetargeting / remarketing
DependencyHistorically third-party cookies
Now strongestFirst-party, logged-in contexts

Frequently asked questions

What is retargeting?

Retargeting is behavioral targeting that re-reaches users who previously interacted with a brand "” for example, showing ads to someone who visited a product page or abandoned a cart.

How did cookie loss affect behavioral targeting?

It sharply reduced cross-site behavioral tracking on the open web, pushing the technique toward first-party and logged-in environments where behavior can be observed without third-party cookies.