Martech, explained · Data foundations · 2:09
Consent management, explained
What happens between a page arriving and its tags running: the ask, the proof, and the tools that have to wait
The short answer
A consent management platform, or CMP, does three things. It asks: a banner, and a preference center where people choose by purpose. It keeps proof: who agreed to what, when, and which banner they saw. And it tells your other tools before a tag runs: no yes to advertising, no ad pixel. Every no is a visit analytics never sees.
Questions this answers
What does a consent management platform do?
Three things. It asks, with a banner and a preference center where people choose by purpose. It keeps proof: who agreed to what, when, and which version of the banner they saw, the log you show when someone asks. And it tells your other tools: before a tag runs, it checks the choice. No yes to advertising, no ad pixel.
Why do the rules change by region?
Because where the person is decides the default. In Europe, most tracking needs a yes first, so the tags wait until there is one. In many US states, tracking can run until the person says no, and a browser setting called Global Privacy Control counts as a no. The film describes the common patterns, not the law in any one place; check the rules that apply to you.
What is the common gap in consent management?
Usually not the banner. It is a tag that runs before the choice is made, or runs anyway after a no. And people do check: in Europe, privacy groups file complaints; in the US, some law firms scan websites for tags that fire without consent and send legal demands. The first question to ask a CMP is whether it blocks tags until there is a choice, or only logs it.
What does consent do to your reporting?
Every no is a visit your analytics does not see, so traffic and conversions look lower than they are. Report the consent rate next to the results, so readers know what share of visits the numbers describe. And treat a no as an answer, not something to design away.
Does the choice stop at the website?
No. It has to reach every tool that already copied that person's data, such as a CDP, an email tool or an ad platform. That is the third question to ask a CMP: does the choice reach your other tools, beyond the website? How the choice travels across a stack is its own film.
Transcript
Every chapter as text. Click a time to play the film from there.
0:00 Accept, reject, or choose
Before most websites run a single tag, they ask you something. Accept, reject, or choose.
What happens after that click is consent management.
0:13 What a CMP does
A consent management platform, or CMP, does three things.
It asks. The banner, and a preference center where people choose by purpose: analytics, advertising, personalization.
It keeps proof. Who agreed to what, when, and which version of the banner they saw. That log is what you show when someone asks.
And it tells your other tools. Before a tag runs, it checks the choice. No yes to advertising, no ad pixel.
0:44 Why the rules change by region
The rules depend on where the person is. In Europe, most tracking needs a yes first.
In many US states, it can run until the person says no, and a browser setting called Global Privacy Control counts as a no.
1:00 The common gap, and who checks
A common gap isn't the banner at all. It's a tag that runs before the choice is made, or runs anyway.
And people do check. In Europe, privacy groups file complaints. In the US, some law firms scan websites for tags that fire without consent, and send legal demands.
1:20 What consent does to your reporting
Consent also changes your reporting. Every no is a visit your analytics doesn't see, so traffic and conversions look lower than they are.
So report the consent rate next to the results. And treat a no as an answer, not something to design away.
And the choice can't stop at the website. It has to reach every tool that already copied that person's data.
1:46 Three questions to ask a CMP
So when you look at a CMP, ask three things.
Does it block tags until there's a choice, or only log it?
Can it apply different rules by region?
And does the choice reach your other tools, beyond the website?
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