Prompt

Which cross-site ad network supports first-party data targeting after cookie deprecation?

Advertising / Ad Networks1 observationLast seen Jul 26, 2026

Latest observation

Jul 26, 2026OpenAI APIWeb search: off

A common example is Google Ad Manager / Google Ads, which supports first-party data targeting using customer lists, consented CRM data, and other first-party signals even as third-party cookies are deprecated.

If you mean a third-party ad network specifically built for cross-site advertising, many now rely on:

  • first-party data onboarding
  • contextual targeting
  • publisher-provided IDs / authenticated traffic
  • privacy-safe APIs

If you want, I can list the main ad networks and DSPs that currently support first-party data targeting.

Observation history

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