What is Google Consent Mode?
Google Consent Mode adjusts how Google tags (GA4, Google Ads) behave based on the visitor’s consent choices. When consent is denied it sends cookieless “pings” that let Google model conversions without storing identifiers.
Why Google Consent Mode matters
Consent Mode v2 is effectively required to keep Google Ads audiences and conversion modelling working in the EU. Its presence signals a team keeping up with Google’s consent requirements — but it is frequently mis-wired to the CMP, so the signals never actually reach Google.
Sites using Google Consent Mode
A sample of higher-traffic domains in the TagStack index where Google Consent Mode was detected.
Is your Google Consent Mode set up correctly?
- Default consent state is set before any Google tag fires.
- The CMP updates Consent Mode when the visitor makes a choice.
- Both analytics_storage and ad_storage signals are handled, not just one.
- Consent Mode v2 parameters (ad_user_data, ad_personalization) are present.
See Google Consent Mode on any website
Enter a URL to reveal its full tracking stack — every tag, pixel and consent tool — in seconds. No login or code access required.
Common Google Consent Mode alternatives
Google Consent Mode FAQ
Consent Mode is the single most commonly mis-wired part of a GTM setup — the default state or the CMP hand-off is often missing, so consent signals never reach Google. TagStack checks the wiring in one scan.