What Google Tag Manager does
Tag Manager itself does not track you, but it is the delivery mechanism that injects most other trackers — analytics, advertising pixels and conversion tags — without the site owner editing page code. Blocking it can stop a whole chain of downstream trackers at once.
What it collects
- No data on its own — it loads other tags that do the tracking
- Indirectly enables advertising pixels, analytics and remarketing tags
Should you block Google Tag Manager?
Because Tag Manager is the loader for dozens of other tracking scripts, blocking it is one of the most effective single moves to reduce a page’s tracking footprint.
How to block Google Tag Manager
- Install the free GeraGuard extension for Chrome.
- Tracker blocking is on by default — GeraGuard blocks Google Tag Manager and other tag manager trackers using regularly updated filter lists, with no setup required.
- Confirm it is blocked by opening the GeraGuard panel, or run the page through the Privacy Scanner.
Also known as
GTM · googletagmanager.com · gtm.js