What it is.
A developer installs one container once, and after that you add analytics, ad pixels and third-party scripts yourself. Google lets you manage all your website tags without editing code, for free.
Preview mode shows exactly which tags fired before anything goes live, and every publish saves a version you can roll back to. Hand it to a marketer and the worst case is a two-click undo.
What you get.
- Tracking changes that go live without a code release.
- Preview mode showing which tags fired and the values behind them, before publishing.
- Version history with rollback, so a mistake costs seconds.
- One place to audit what fires, which is how you find the abandoned pixels slowing the site.
How to set it up.
Create a container, then have a developer place the two snippets in the head and body once.
Add the Google tag for Analytics first, and confirm it in Preview before publishing anything else.
Create a Data Layer variable for the fields you care about, and read them in Preview to check the values arrive.
Build one trigger per meaningful action, and name triggers after the action they describe.
Publish with a version name that says what changed, so the rollback list stays readable.
Give marketers publish access only after they have used Preview twice with someone watching.
Pricing Plans
Tag Manager
$0
unlimited containers and tags, version history included
Use cases
Pixel live this afternoon
Add the tag, preview which tags fired, and publish without a code release.
Two-click rollback
Publish a version, and when the numbers move oddly, return to the last one.
Debug someone else's tracking
Use preview mode to read the values a tag sends before you trust the report.
Best for
Marketing teams without developer time
A pixel that takes a sprint to add is a pixel that never gets added. One container makes it an afternoon.
Setting up GA4 events
Custom events and their parameters can be built and tested in Preview before a single one reaches the property.
Auditing what already fires
Preview mode on a live page lists every tag, which is how you find the four abandoned pixels nobody removed.
Open the tool
Opens on Google in a new tab.