The universal identity solution for digital advertising

Building a universal ID for digital advertising

ID5 is the independent shared identity infrastructure for ad tech platforms and premium publishers

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The Advertising Identity Guide

Learn how identity works today on the web and what will change with the deprecation of third-party cookies

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Cookie matching explained

Learn more about the impact of cookie matching on website performance and publisher revenue, and the solutions that ID5 provide

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ID5 provides premium publishers and ad tech platforms with a universal ID solution that enables user-level identification without relying on third-party cookies.

To learn how ID5’s solutions can help identify users in a privacy-compliant way, improve match rates and increase programmatic revenue, get in touch

Cookie-less solution

ID5’s Universal ID solution enables publishers and ad tech companies to identify 100% of users even in browsers where 3rd party cookies are blocked

Privacy-by-design

ID5’s privacy-by-design technology enforces consumers’ and publishers’ choices and ensures that consumers’ data is only shared with approved vendors

Scale and reach

ID5 works with 70+ ad tech platforms, is active on more than 100,000 websites and reaches over 400M users per day globally

"As an industry, we need to improve our identification capabilities. ID5 has come up with a strong solution that aligns the interests of all stakeholders. We are committed to supporting their efforts in building a shared identification infrastructure that we can all leverage to make programmatic work better."

Arnaud Créput

Chief Executive Officer

"As one of the leading global data marketplaces, Eyeota is a critical partner of data providers and brands who want to engaged with qualified audience. Too often, these relationships are not optimal because of technical integration issues. ID5 provides an interesting solution to this problem so that we can focus on maximising the ability for brands to access their target audience via our platform."

Pieter de Zwart

Chief Technology Officer

"Identifying users in a scalable, efficient and privacy compliant way is a key challenge for Ad Tech. We believe that there is value in a neutral party like ID5 building an independent user identification infrastructure."

Jochen Schlosser

Chief Strategy Officer