COREid® is the industry’s most accurate, stable and scalable source of identity resolution. Built on verified name and address data it connects every interaction back to a single identity, eliminating duplication, cutting waste and revealing a truer picture of your customers.
Fill the gaps in your customer data
For over a decade, Epsilon has strengthened COREid through trusted publisher partnerships and continuous validation. This creates a live, ever-expanding network that can identify and reach real people at scale.
COREid underpins all Epsilon products, enabling brands to recognise, reach and measure individuals with precision and prove outcomes, not just intent.
Epsilon COREid unifies what you know about individual consumers from interactions in various channels across disparate systems. This can then be augmented with Epsilon's proprietary insights to create a single, robust and unified view of any individual.
Once resolved, each COREid powers personalisation and performance across every channel — display, video, CTV, social, audio and in-store — enabling 1:1 conversations everywhere customers interact with your brand.
With closed-loop attribution built in, COREid connects exposure to verified sales and engagement data. That means you can see the real business impact of every impression and continually refine what drives results.
Links disparate pieces of data to a single individual in a pseudonymized view, giving a more holistic profile of a consumer
Uses advanced tools like AI to identify and evaluate probabilistic matches based on data
Fills in data gaps to reduce inaccuracies and redundancies
More effective scalability based on dynamic data that stays fresh and up-to-date
Uses weak identifiers, like email or digital IDs (commonly third-party cookies), to link consumer behaviors and actions
Requires “exact” identifier matching to link profiles
Prone to duplicative, incomplete and inaccurate data sets
Less scalable and usually a static data set
Links disparate pieces of data to a single individual in a pseudonymized view, giving a more holistic profile of a consumer
Uses advanced tools like AI to identify and evaluate probabilistic matches based on data
Fills in data gaps to reduce inaccuracies and redundancies
More effective scalability based on dynamic data that stays fresh and up-to-date
Uses weak identifiers, like email or digital IDs (commonly third-party cookies), to link consumer behaviors and actions
Requires “exact” identifier matching to link profiles
Prone to duplicative, incomplete and inaccurate data sets
Less scalable and usually a static data set
Epsilon’s COREid was the only identity solution to capture all nine of the potential identifiers outlined in Digiday’s “A guide to the top ID alternatives for publishers” report. COREid’s strong offline and online foundation ensures persistency, efficiency, and more accurate reach.
