Download websites that use Google Tag Manager

About Google Tag Manager

A tag manager is a container rather than a tool, and that distinction governs everything about how this data should be read. Detecting it tells you that a site has a mechanism for deploying tracking without touching code. It does not tell you what is inside the container, which is frequently the thing you actually wanted to know.

As of September 2026 we detect it on 6,346,455 sites. What that population has in common is not a technology choice but an organisational one: somebody separated marketing deployment from engineering deployment. That separation almost always means there is a marketing function with its own budget and its own agenda, which is a useful thing to know about a company before approaching it.

The container also hides things, and that is worth being explicit about. Tags deployed through it may not be independently detectable from the page, so a site using it can appear to run less tracking than it really does. Our figures for individual analytics and advertising tools are therefore floors on any site where a container is present, and we would rather state that than publish counts implying a completeness we cannot deliver.

Read as an organisational signal rather than a technical one, the population is well qualified. Sites running a container alongside analytics, a consent layer and a form tool are being actively marketed. Sites running an empty or orphaned container are the residue of a campaign that ended, which is its own kind of opportunity.

United States accounts for 2,767,953 of detections and the .com zone leads, following commercial adoption rather than geography.

For anyone selling marketing technology, consent tooling or analytics services, the intersection of container plus commerce plus geography is the qualifying filter, and it is only cheap when the whole population sits on your own disk.

The webatla export carries the container detection alongside everything else identified on the domain, rebuilt daily. Where identifiers are exposed, they are included, which supports grouping properties by the account that administers them.

There is a second-order use of this signal that is easy to overlook. The presence of a container alongside a consent management platform indicates an organisation that has taken regulatory obligations seriously enough to build them into its deployment process. The presence of a container without one, in a jurisdiction where consent is required, indicates the opposite.

That contrast identifies a specific and well-defined market. Compliance tooling, privacy consulting and audit services all sell into the gap between having tracking infrastructure and having governance around it, and the gap is directly observable here. Both halves of the comparison come from the same row, which is why holding the full stack together matters more than the accuracy of any single detection.

Google operates it on a Freemium basis and it has been available since 2012.