First-Party Data
Section titled “First-Party Data”First-party data is information a business collects directly from its own audience, on its own domain — through first-party cookies, account logins, and details people submit. Because it is gathered first-hand rather than bought from or shared by another company, it stays accurate and privacy-compliant (GDPR, CCPA) and does not depend on third-party cookies, which browsers increasingly block.
First-Party Data vs Customer Data
Section titled “First-Party Data vs Customer Data”- Customer Data — first-party data is the broad category of everything you collect first-hand, including anonymous signals; Customer Data is the personal-information subset (email, phone, name) AnyTrack hashes and forwards to ad platforms.
First-Party Data in AnyTrack
Section titled “First-Party Data in AnyTrack”AnyTrack is built on first-party data. It sets its identifiers as first-party cookies on your own domain — _atcid (an anonymous visitor ID, two-year TTL), _atcid-pt (the session timestamp), and _atutm (the last campaign parameters). It then collects the conversions and customer details that happen on your site and delivers them server-side to ad platforms via the Conversion API, enriching each session (Session Enrichment) so attribution and match quality survive without third-party cookies.
Frequently asked questions
FAQ was last reviewed on 2026-06-28