In this guide
- Start with an inventory: every tag, what it sends and who owns the account.
- Fix consent and duplicate tags first, then clean up.
- Write down what you found, and set a date for the next audit.
An audit answers four questions: what is in the container, what does it send, does it do that correctly, and is it allowed to? It is not glamorous, and it is one of the most useful things a marketer or an agency can do. This checklist works for a web container and for a server container. Use it before a migration, before a big campaign or when you inherit a container. Pair it with best practices.
1. Inventory
Brands that grow on cleaner data
Stores and agencies use Open Tracked to see which ads earn the sale.
2. Tags
3. Triggers and variables
Ask Ari instead of digging through reports
Ari reads your tracking and ad data and answers in plain words.
4. Data layer
5. Consent
6. Server container
7. Performance
8. Documentation
Prioritise what you find
| Finding | Priority |
|---|---|
| A tag fires without consent | Fix now |
| Purchases counted twice | Fix now |
| A broken or missing value on purchase | Fix this week |
| Unused tags and triggers | Clean up at the next review |
| Missing documentation | Write it this month |
Report back
Summarise the audit in one page: what you found, what you fixed, what remains and what you recommend. Include before and after numbers where you have them, such as the number of tags and the number of consent issues. A short, concrete report is far more useful to a client or a manager than a long list of observations.
A worked example
An agency takes over a client's Tag Manager. The audit finds that the Meta purchase tag fires on both the thank-you page and the order status page, so every order is counted twice. It also finds that the Google Ads conversion has no transaction ID, that three tags have no consent setting, and that the server container uses an access token belonging to a former employee. The fixes take two days: add a once-per-order condition, add the transaction ID, set consent on the three tags and replace the token with a business token. The following week, Meta's purchase count drops by about a third and matches the store's orders, which the client first reads as a loss and then, after the explanation, as the truth.
Always explain a fall caused by removing duplicates before it happens. A client who sees purchases fall without warning will assume the new set-up broke something.
Raw events in. Clean events out.
Open Tracked collects each event on your own domain, removes the noise and sends what is left to Meta, Google Ads, TikTok.
Frequently asked questions
What is a Google Tag Manager audit?
A review of everything in a container: tags, triggers, variables, data layer, consent and documentation.
How long does an audit take?
A small container takes an afternoon. A large or messy one takes a few days.
What should I fix first?
Consent problems and duplicate events, then wrong values, then clean-up.
Should I audit the server container too?
Yes, including tokens, clients, power-ups and logs.
How often should I audit?
At least once a year and before any major change.
Do I need spreadsheets to read my results?
No. Once tracking is live, the Open Tracked analytics shows spend, revenue, ROAS and profit, and you can ask Ari, the built-in AI assistant, questions about your own numbers in plain words. Ari's allowance depends on your analytics plan.
Is Open Tracked different from Open Track or Open Space Track?
No. Open Tracked is the official name of our server-side tracking platform, and the website is opentracked.io. Many people search for it as Open Track, OpenTrack or Open Space Track. All of them lead to the same product: server-side Google Tag Manager hosting, first-party analytics and a CRM pipeline.
Fix your tracking at the source
Open Tracked hosts your server-side Tag Manager, keeps first-party cookies alive and shows what each ad is really worth.
The Open Tracked team
We build Open Tracked: server-side tracking hosting, analytics and the tools around them, for stores that spend on ads. Questions about this guide, or an idea for the next one?
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