Consent Mode Basic vs Advanced: Which to Use
The difference is what happens before a visitor consents. In basic mode, Google tags do not load at all until consent, so Google receives nothing from visitors who decline. In advanced mode, Google tags load in a consent-aware state and send cookieless pings before consent, which Google uses to model the visitors you did not measure directly. Advanced mode keeps more of your data; basic mode sends less to Google.
Both are compliant when set up correctly, because neither sets cookies before consent. The choice is about data, not legality.
Basic vs advanced at a glance
| Basic mode | Advanced mode | |
|---|---|---|
| Tags before consent | Not loaded | Loaded, consent-aware |
| Data sent before consent | None | Cookieless pings, no cookies |
| Modelling for visitors who decline | No | Yes |
| Cookies before consent | None | None |
| Data retained | Less | More |
| Setup | Simpler | Slightly more involved |
When basic mode fits
Basic mode suits sites that want the smallest possible data footprint, or that prefer no Google tag to run at all until a visitor opts in. You lose modelling for visitors who decline, so your reporting drops to zero for that group, but nothing leaves the page before consent.
When advanced mode fits
Advanced mode suits most commercial sites that run Google Ads or care about measurement. The cookieless pings let Google model the gap, so your reports keep a usable shape and your conversion tracking holds up better. No cookies are set before consent, so it meets UK PECR the same as basic mode.
Consentfolio uses the advanced pattern, so you keep modelled data without setting cookies before consent. See how to set up Consent Mode v2 and the Google Consent Mode v2 guide.
Frequently asked questions
Is advanced mode less private than basic mode? Neither sets cookies before consent. Advanced mode sends cookieless pings that carry no identifiers Google uses to build a profile, so both respect the visitor's choice. Advanced simply keeps more modelled data for you.
Which mode is more common? Advanced mode, because it preserves modelling and conversion accuracy for advertisers while still blocking cookies before consent.
Does the mode change how I set up the banner? The consent signals and timing are the same. The mode is about whether Google tags load before consent, which you configure in your Consent Mode implementation.
Written by Tudor Rusmanica, founder of Consentfolio. Tudor has spent over a decade in agency SEO, working where search performance meets data protection: the analytics, tagging and consent setups that keep measurement useful and lawful. Connect on LinkedIn.
Published 13 July 2026. Last reviewed 13 July 2026.