Cross-Device Tracking is measurement that attempts to connect user behavior across multiple devices.
Example of Cross-Device Tracking
A person researches on a phone and later buys on a laptop. A measurement system may connect those interactions using supported identifiers or modeling, but unmatched activity remains a limitation rather than proof of two different people.
Why Cross-Device Tracking matters
It matters because most visitors do not convert on the first visit. Retargeting terminology helps teams create thoughtful follow-up sequences, avoid wasted impressions, and respect audience exclusions and privacy expectations.
Related terms
- Sequential Messaging
- Third-Party Cookie
- Audience Exclusion
- First-Party Cookie
- Cookie
- Conversion Pixel
Frequently Asked Question
What does Cross-Device Tracking mean?
Cross-Device Tracking means measurement that attempts to connect user behavior across multiple devices.