Results from a Google experiment showed that interest-based audience solutions performed reasonably well compared to third-party cookies.
The results. The results were compared using interest-based audience (IBA) solutions with privacy-preserving signals on the display network, Google Display Ads advertiser spending on IBA, as a proxy for scale reached (meaning that a particular metric or value is being used to estimate or represent the extent or level of impact achieved in a specific context. In this case, it indicates that the given metric serves as an indirect measure to help understand the overall reach or success of a particular aspect being discussed).
