There are better ways to identify users than third-party cookies—that's why we began working to minimize dependency on them over three years ago. Choose from our suite of identity solutions that enable you to accurately identify each one of your site visitors. That way, you'll provide your users with more personalized browsing experiences while you increase your bid opportunities and earnings.
Key benefits
Provide better user experiences

Mitigate the impact of third-party cookie deprecation

Measure incremental lift
Know exactly how your ads performed with our first-party cookie solutions in the publisher UI.
Epsilon Publisher Identity solutions
Publisher Common ID
An open-source, first-party cookie solution that provides access to Epsilon’s premium client demand with no contracts or signup required. With Publisher Common ID, publishers have seen a 23% increase in revenue and 30% increase in fillable impressions.
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Publisher Link
Activate your first-party authenticated data by connecting it to our industry-leading identity to improve audience identification and increase bid opportunities at no cost.
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Combine Publisher Common ID + Publisher Link
Our first-party cookie solutions are designed to build on each other and increase performance capabilities with each integration. By combining both solutions, you'll activate our strongest identity solution and recognize each user with even more accuracy.