Containers belong under a GTM account, and you typically create one container per site or app. If you insert a container snippet (JavaScript code with an ID in the form GTM-XXXXXX) into the HTML head and body, GTM will run on the page.
GTM has a web container (client side) and a server container (server side). A web container is a standard GTM that runs in a browser, and a server container is a server-side tagging method that deploys to a cloud server and processes tags on the server instead of the browser. By combining the two containers, you can create a structure where data is sent from the browser to the server container and the server delivers it to each platform.
GTM screen path: You can see account → container list at tagmanager.google.com. In the container settings, manage the container ID (GTM-XXXXXX), workspace list, and tags, triggers, and variables. Containers can be backed up or transferred to another account using the export (JSON) function.
Key takeaways
- Centrally manage and distribute multiple tags, triggers, and variables with a single container snippet.
- It is divided into web container (client side) and server container (server side).
- Version management is performed on a per-container basis, and previous versions can be restored immediately.
- Workspaces allow multiple people to edit and merge at the same time.
- You can export entire settings as a container JSON file to import or back up to another account.