Glossary/Audience data/Data management platform (DMP)
What is a DMP (data management platform) and how does it work?
What a data management platform does, how it builds audiences from reader data, how it compares with a CDP, and what publishers use it for.
Written by Samhub with the help of AI·Updated 13 Oct 2026·3 min readA data management platform (DMP) collects data about readers, mostly anonymous visits and behavior, and organizes it into audience segments that can be used for advertising.
How a DMP works
Collect
A script on your sites and apps records page views, content and other signals, with consent.
Organize
Signals are grouped by reader ID into interests and behaviors.
Segment
Readers are placed in audiences such as sports fans or home buyers.
Activate
Audiences are sent to ad servers, SSPs and DSPs, so buyers can target them.
DMP vs CDP
| DMP | CDP | |
|---|---|---|
| Main data | Anonymous visits and behavior | Known customers and logins |
| Typical use | Advertising audiences | Personal messages and customer journeys |
| Identifiers | Cookies and device IDs | Logins, email and customer IDs |
16 pages for publishers, with a checklist for data, programmatic and direct sales.
Why publishers still need one
Most readers are not logged in. A DMP turns their visits into audiences buyers can target, which raises CPMs and makes direct sales easier. Many publishers now run DMP, CDP and enrichment in one platform instead of separate tools.
Addressability at Stampen Media after moving its reader data into one layer with Samhub.
Frequently asked questions
Not for publishers. A publisher DMP runs on first-party data from its own sites, which is exactly what buyers now lack.
A DMP is built for anonymous audience data and advertising. A CDP unifies known customer data. Many publishers need both.
Page views, content, context, device and location signals, and data partners’ data where allowed.
Yes, for building advertising profiles in the EU. Consent is usually collected through a CMP and the IAB TCF.
Related terms
Unifies data about known customers into profiles.
Data you collect directly from your own readers.
Adding detail to the data you already have.
Targeting ads based on what readers have done before.
Two types of data platforms compared.
One EU-based platform to collect, unify and enrich your first-party data, installed with one script.
- A walkthrough with your own data
- Built for publishers and media houses
- 30 minutes, no commitment
Turn your audience data into more revenue
Get the Media Monetization Playbook: how media houses turn first-party data into higher CPMs, data deals and direct sales. With checklists for every step.
