Ad Tech18 Feb 2026· 9 min read

TCF v2.3: What Publishers and Ad Tech Teams Need to Know

IAB Europe's TCF v2.3 brings significant changes to consent signalling across the programmatic advertising ecosystem.

TCF v2.3: A Quick Primer

The IAB Europe TCF is the de facto standard for passing consent signals through programmatic advertising.

New legitimate interest controls

Revised consent string format

Global Privacy Platform (GPP) integration

Re-audit your vendor list

Update your CMP to generate v2.3 strings

Test with your SSPs before go-live