Data Audit

Data Audit & Health Check

Know exactly what's broken, what's missing, and what's collecting dust. A full audit of your setup, with a clear, ranked action plan.

You can't fix what you don't measure, but you also can't trust decisions made on broken data. Most analytics setups have silent failures that skew your numbers without you knowing.

I conduct thorough audits of GA4, GTM, and your wider measurement ecosystem to identify tracking gaps, data quality issues, and opportunities for improvement. You'll get a detailed report with prioritized recommendations: not just "what's wrong" but exactly how to fix it.

What you get

Complete tracking assessment
Data quality evaluation
GTM container health check
Compliance review (GDPR/CCPA)
Ranked action plan in 1–2 weeks, from read-only access

What's Included

Tracking Assessment

A review of every tracking implementation — GA4, GTM, pixels, SDKs. I test every event, parameter, and conversion to verify accuracy.

Data Quality Check

Analysis of data integrity, validation against backend systems, identification of discrepancies, missing data, or inflation issues.

GTM Container Review

Deep dive into your Tag Manager setup. I identify redundant tags, performance issues, firing order problems, and opportunities for optimization.

Compliance Assessment

GDPR and CCPA compliance check. I verify consent management, data collection practices, and cookie usage align with regulations.

Performance Impact

Analysis of how your tracking affects page load times and Core Web Vitals. Recommendations for reducing performance overhead.

Action Plan

Detailed report with prioritized recommendations: what to fix immediately, what can wait, and what opportunities exist for better insights.

Audit Process

Initial Assessment

I start by understanding your business goals and how you currently use analytics. What decisions depend on this data? What questions should it answer?

Technical Review

Deep dive into your GA4 property, GTM containers, and all tracking implementations. I test events, validate data flows, and identify technical issues.

Data Validation

I compare analytics data against your source of truth (CRM, e-commerce platform, or backend). This reveals silent discrepancies and data quality issues.

Documentation

An audit report detailing every finding, ranked by severity. Each issue includes context, impact, and specific fix recommendations.

Presentation

Walkthrough of findings with your team. I explain what's broken, why it matters, and exactly what needs to happen to fix it.

Not sure if this is what you need? Send me your setup. I'll run a free health check and tell you exactly where to start.

Free Analytics Health Check →

Common questions

What does an analytics audit cover?

A full review of your GA4, Google Tag Manager, server-side setup, and consent configuration. I check event accuracy, conversion tracking, data-layer health, cross-domain issues, and where your numbers leak, then rank the fixes by impact.

How long does an analytics audit take?

A standard audit takes about one to two weeks from access to report. I work from read-only access, so there is no risk to your live setup, and you get the findings as a clear, ranked action plan rather than a raw data dump.

Why don't my GA4 numbers match my CRM or revenue?

It is almost always a collection problem, not a reporting one: consent gating, ad blockers, duplicated or missing events, or timezone and attribution mismatches. The audit pinpoints exactly which of these is costing you, with the evidence, so the fix is targeted.

Do you fix the issues or just report them?

The audit ends with a prioritised fix list, and I can implement the fixes or hand them to your team with clear specs. Many clients start with the audit, then have me execute the highest-impact items.

Trust your
data again

Let's identify what's broken and build a plan to fix it.

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