User ID - Definition
Digital advertising is the land of acronyms and technical terms. Our glossary can help you make sense of it all with definitions of the most common terminology.
What is User ID?
A token is a unique identifier assigned to a specific technical element, such as a cookie or device ID, that is associated with a particular browser or device. This token helps track user behavior and interactions across websites or apps, providing valuable data for marketers, advertisers, and analysts. Since the token is specific to a given browser or device, it allows for more accurate targeting and personalization, ensuring that content or advertisements are delivered based on the individual’s previous interactions. These tokens play a key role in enabling data collection, improving user experience, and driving effective marketing strategies.