Privacy

Consent Management Platform (CMP) — Definition & Explanation

Software that manages user consent for data processing in compliance with privacy regulations like GDPR and CCPA. CMPs display consent dialogs, record preferences, and communicate consent status to ad tech vendors through standards like IAB TCF.

How Consent Management Platform (CMP) Works

A CMP renders a consent UI on the user's first visit, records their choices, and stores preferences in a cookie or local storage. It then passes consent signals to the ad stack using the IAB TCF API so vendors can determine what data they're permitted to use.

Why Consent Management Platform (CMP) Matters for Publishers

A properly implemented CMP is legally required for EU traffic and significantly impacts monetization. Higher consent rates mean more addressable impressions with CPMs 30-60% higher than non-consented traffic.

Frequently Asked Questions

Which CMP does Stellor Media recommend?

Stellor Media works with all major TCF-certified CMPs. We recommend platforms like Didomi, OneTrust, or Usercentrics for their TCF v2.2 compliance and high consent rates.

What happens to revenue if users don't consent?

Non-consented impressions still generate revenue through contextual advertising, but typically at lower CPMs than data-driven targeting.

Is CCPA compliance different from GDPR?

Yes. CCPA requires an opt-out mechanism rather than opt-in consent. Publishers must honor Global Privacy Control (GPC) signals for California users.

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