Google Tag Manager Audit Services

A Google Tag Manager audit is the fastest way to understand why your analytics data does not match your business reality. Most GTM containers that have been in use for more than six months accumulate problems that degrade data quality: tags firing on the wrong pages, duplicate triggers causing inflated conversion counts, variables returning undefined values because the data layer was changed without updating the configuration, consent mode misconfiguration allowing non-consented tags to fire, and dozens of zombie tags from past campaigns that nobody deactivated. A professional GTM audit systematically examines every one of these failure modes and produces an actionable priority-ranked report so you know exactly what to fix and in what order.

Our Google Tag Manager audit services cover five key areas. First, container structure — naming conventions, folder organisation, and workspace hygiene. Second, tag configuration — correct tag types, trigger conditions, firing limits, and exception triggers. Third, data layer integrity — whether every variable referenced in your tags actually exists in the data layer and in the correct format. Fourth, conversion tracking accuracy — we cross-reference GTM conversion tag data against platform reports (Google Ads, Meta Ads Manager) and backend order data to surface discrepancies. Fifth, consent and privacy compliance — we verify that tags respect consent signals and that your Consent Mode implementation matches Google's requirements for modelled conversions. The audit report includes a severity-scored finding list, root cause analysis for each issue, and prioritised remediation steps. We can deliver the report only, or bundle remediation work into a fixed-price fix engagement.