Yes. No account, no card, no trial. ScoreGTM is a free tool from DataMoon - we built it because most GTM containers we audit have the same handful of fixable issues.

Where does my container go?

Your container is processed once to generate your score and report, then discarded. We keep only your score and email address so we can send you the report and follow up if you'd like.

How do I export my container from GTM?

In Google Tag Manager, go to Admin → Export Container, choose the workspace you want to audit, and download the .json file. Upload that here.

Will this change anything in my GTM?

No. The export is a read-only snapshot. We never connect to your account or modify your container in any way.

Free GTM audit in 30 seconds

Score your Google Tag Manager setup in 30 seconds.

Upload your GTM container and get an instant, expert audit - a health score out of 100 and the exact issues worth fixing. Free, no login, and yours to keep.

Drop your GTM container here

or click to browse - .json file, up to 10 MB

We'll show your score on screen and email you a one-page report. We never sell your data, and your container is never stored - it's processed once and discarded.

How it works

Three steps, no setup, no signup.

Upload your container

Export from GTM (Admin → Export Container) and drop the .json file in. Nothing to install.

We score it instantly

We check your tags, triggers, variables, consent setup and more against best practice - and grade it out of 100.

Get your report and fixes

See your score on screen and get a one-page PDF with your biggest issues and quick wins, prioritised.

What we look at

Every container is scored across six areas - the same things we'd check in a paid audit.

Deprecation & modernisation

Stop relying on what Google has retired.

Dead Universal Analytics tags, missing GA4 or Google tag setup, and other legacy patterns that quietly break tracking.

Legacy UA tags
GA4 / Google tag coverage
Outdated templates

Privacy & consent

Be confidently GDPR-ready.

Consent Mode wiring, tags firing without consent, and the small mistakes that turn into big compliance headaches.

Consent Mode v2
Tags firing pre-consent
Region handling

Health & hygiene

Spot the dead weight.

Unused variables and triggers, paused tags, and tags that have never fired - the clutter slowing your container down.

Unused variables
Paused tags
Never-fired tags

Governance & maintainability

Organised setups are easier to trust.

Folders, naming conventions, and documentation so the next person who opens your container actually understands it.

Folder structure
Naming conventions
Documentation

Performance & security

Keep your site fast and safe.

Heavy custom HTML, tags firing on every page, and other patterns that hurt page speed or expand your attack surface.

Custom HTML usage
All-pages firing
Bloat detection

Tracking coverage

See what you're missing.

GA4 event coverage, consent initialisation, and opportunities to move to server-side or enhanced measurement.

GA4 events
Consent init
Server-side opportunities

Built by DataMoon

ScoreGTM is built by DataMoon, a data, analytics & automation consultancy. We fix tracking, build dashboards teams actually use, and connect the systems behind your business. If your score turns up things you'd rather not fix yourself, we can help - book a free 30-minute review.

Frequently asked

Everything you might want to know before uploading.