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Analytics & Tracking

Google Tag Manager
Container Audit

GTM containers rarely go wrong all at once. They accumulate — a tag added for one campaign, a trigger duplicated for another, a variable nobody remembers writing. At Vizionality, we inventory every tag, trigger, and variable in your container, verify what's firing and when, and hand you a ranked list of everything that needs to change.

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Overview

What this includes

Container setup and architecture

We build your GTM container with a naming convention, folder structure, and implementation standard that makes ongoing maintenance straightforward. No mystery tags, no orphaned triggers, no variables that reference nothing.

Full tag and trigger inventory

Every tag, trigger, and variable in your container gets documented — active and paused alike — so you finally have a complete picture of what is running on your site and why.

Data layer review

We review your data layer implementation against what your tags actually need, so the values being pushed match the values being read and nothing downstream is receiving empty strings.

Prioritized fix list

You get a full inventory of every issue found, ranked by impact, with clear next steps your team can act on immediately.

Our process

How we run a GTM audit

Talk it through
  1. 01

    Discover your needs

    We start by understanding how your site is instrumented and what your team relies on GTM to do. We look at your current container setup, what tags are running, and where your tracking may be falling short.

  2. 02

    Review your container structure

    We audit your GTM container from top to bottom — tags, triggers, variables, and folder organization — and document what each one is actually doing.

  3. 03

    Audit tag firing and trigger logic

    We verify every tag is firing on the right conditions and only when it should, catching the overlapping triggers and duplicate tags that inflate your numbers.

  4. 04

    Identify data layer gaps

    We review your data layer implementation against what your tags actually need to pass clean data downstream.

  5. 05

    Deliver a prioritized fix list

    You get a full inventory of every issue found, ranked by impact, with clear next steps your team can act on immediately.

Find out what your GTM container is really doing.

Get a free audit

Common questions

Why is my GTM container causing tracking issues?

GTM containers accumulate problems over time, especially when multiple people have added tags without a clear structure. The most common causes are overlapping triggers firing tags on the wrong pages, broken variable references that pass empty or incorrect values, duplicate tags sending inflated data, and data layer pushes that don't match what tags expect.

How do I know if my Google Tag Manager is set up correctly?

If your GA4 data doesn't match your actual traffic, conversions are firing on pages they shouldn't, your Google Ads campaigns are optimizing toward the wrong actions, or tags were set up by multiple people over time without documentation, your GTM container likely has problems. The only way to know for certain is a full audit of every tag, trigger, and variable.

What should a GTM audit include?

A thorough GTM audit should cover a full inventory of every tag, trigger, and variable in your container, both active and paused. It should verify tag firing logic, check trigger conditions, review your data layer implementation, confirm that conversion events are passing clean data to GA4 and Google Ads, and deliver a prioritized list of every issue found ranked by business impact.

Will Vizionality fix the problems or just tell me what's wrong?

Both options are available. The audit itself delivers a complete report of every issue found with clear next steps. If you want us to handle the fixes, we work directly in your GTM container, test every change in preview mode before publishing, and validate tag behavior across your key pages. You can also take the report to your internal team — either way you leave with a clear action plan.

My GTM audit is done, what should I do next?

Start with the highest-impact issues on your fix list, typically misfiring conversion tags and broken data layer variables, since those directly affect your ad platform optimization and GA4 reporting accuracy. Once the critical fixes are in place, work through the structural cleanup to prevent the same issues from building back up. If you want implementation support, Vizionality can handle the full remediation end to end.