Ask Should display advertisers measure performance after third-party cookies disappear?

[Dean101]

Instead of tracking individuals across websites, advertisers can study engagement through first-party data, contextual targeting, and aggregated analytics. Watching which ads lead to clicks, purchases, or repeat visits helps reveal what content actually connects with audiences. Comparing campaign performance across devices and platforms also highlights where messaging works best. Surveys, conversion modeling, and clean room analysis can replace some cookie-based tracking while still protecting user privacy. Insights from these methods help brands refine targeting, improve creative design, and deliver more relevant ads without invasive monitoring.