Analytics Audits - find out what is actually broken.

Most analytics setups have more issues than their owners realise. A structured audit tells you exactly what is wrong, how serious it is, and what to fix first - without guessing.

Tag AuditObservePointTag InspectorData QualityConsent Audit

What We Audit

Every layer of your analytics stack.

A TagNexus audit is not a surface-level check. We go through your entire implementation systematically - from GTM container structure through to GA4 data quality and consent compliance - and document every issue we find with a clear recommendation for each one.

GTM container audit - tag firing accuracy, trigger conditions, variable configuration, and container hygiene
dataLayer audit - event structure, parameter consistency, and data quality across all tracked interactions
GA4 property audit - event configuration, custom dimensions, funnel setup, and attribution model review
Consent Mode audit - verifying correct tag behaviour under all consent states (granted, denied, pre-consent)
Server-side setup review - client configuration, tag routing, and data flow validation
Cross-domain and subdomain tracking verification
Ad platform tag validation - Google Ads, Meta Pixel, and other vendor tags checked for accuracy

What You Get

Full written audit report with findings rated by severity
Prioritised remediation plan - what to fix first and why
GTM container review notes and recommendations
GA4 data quality assessment
Consent compliance checklist
Optional: implementation of fixes as a follow-on engagement

Common Issues We Find

What most audits uncover.

These are not edge cases - they appear in the majority of analytics setups we review.

Duplicate events

The same event firing multiple times per interaction - from conflicting triggers, Enhanced Measurement overlapping with custom events, or framework-level tracking clashing with GTM.

Consent misconfiguration

GA4 or ad tags firing on all users regardless of consent status - creating GDPR compliance risk that is often invisible until someone looks for it specifically.

Missing or broken events

Key conversions not being tracked, form submissions firing on page load rather than on submission, or ecommerce events missing parameters that reporting depends on.

Inconsistent dataLayer

Event names and parameter structures that vary between pages or environments - producing data that looks right individually but cannot be reliably aggregated or reported on.

No server-side resilience

All data collection running client-side - vulnerable to ad blockers, browser privacy restrictions, and ITP - resulting in significant data loss that the business is often unaware of.

Bloated containers

GTM containers with dozens of unused tags, conflicting triggers, and undocumented custom scripts accumulated over years - slowing page load and creating unpredictable firing behaviour.