Universal Id: What It Is, Key Features, Benefits, Use Cases, and How It Fits in Programmatic Advertising
Universal Id is a privacy-aware identity approach used in **Paid Marketing** to recognize the same person (or household) across websites, apps, and devices without relying solely on third-party cookies. In **Programmatic Advertising**, Universal Id helps advertisers and publishers maintain addressability—meaning the ability to reach and measure audiences—while adapting to stricter privacy expectations, browser restrictions, and platform-level limits on tracking.