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Analytics AgencyAnalytics & GA4 Audit
Bad data costs bad decisions

Analytics Audit GA4: 81% of configurations contain critical errors

Duplicate events, missing conversions, unfiltered bot traffic, broken cross-domain. Your GA4 is probably telling you the wrong story — and every decision based on it costs you money. Our GA4 audit covers 80+ checkpoints and fixes everything in 10 days.

45+Analytics audits completed
81%GA4 setups with errors
45dPost-audit support included

The 3 analytics errors corrupting your data

01

Detect invisible errors skewing your numbers

Duplicate events inflating your conversion rates. Sessions broken by faulty cross-domain. Unfiltered internal and bot traffic. We scrutinize your GA4 configuration with an 80+ point checklist to identify every anomaly.

Our solution
02

Fill the 30 to 50% blind spots

A missing custom event is an invisible user behavior. We identify gaps in your tracking plan: unmeasured key interactions, missing parameters, unconfigured micro and macro conversions. Every blind spot represents a lost optimization opportunity.

Our solution
03

Make your data reliable for real decisions

We compare your GA4 data with third-party sources (CRM, back-office, Search Console) to measure actual discrepancies. You get a reliability score per metric and know exactly which numbers you can use to decide — and which need fixing.

Our solution

Why it matters

81%of GA4 setups contain critical errors

The GA4 migration left its mark. 81% of configurations we audit contain errors: misnamed events, untracked conversions, missing filters. Our audits get your data collection back on track.

Our complete analytics audit process

A proven 4-step process for concrete, measurable results.

01

Complete GA4 audit diagnostic (80+ points)

Exhaustive review of your GA4 setup: properties, data streams, events (standard and custom), conversions, filters, audiences, product links (Google Ads, Search Console, BigQuery). DataLayer and GTM container verification and data consistency across all layers.

02

Analytics data quality validation

Accuracy tests on a data sample: GA4 vs CRM vs back-office comparison. Detection of duplicate events, bot traffic, broken sessions and outlier data. Measurement of the gap between analytics data and business reality.

03

Correction & optimization

Implementation of identified critical fixes. Addition of missing events, conversion configuration, filter and audience cleanup. Custom report and exploration setup tailored to your business needs.

04

Documentation & knowledge transfer

Complete documentation of your corrected configuration. Maintenance guide with monthly verification procedures. 2-hour training session to make your teams autonomous on GA4 usage and issue detection.

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Why for your analytics audit chillmetrics ?

We are not just another agency. For your analytics audit, chillmetrics deploys certified web analytics experts working directly on your data collection, GA4 configurations, and data quality. No middleman project manager, no hollow reports: a complete analytics audit, delivered on time. Every engagement includes post-delivery support to ensure data reliability in real conditions.

Certified experts
7+ years of experience
50+ clients served
Post-engagement support included

They trusted us

Our consultants have worked for leading brands

Our team has worked with all types of companies and agencies (marketing, data, tracking) across all verticals (E-commerce, B2B, Tech, Healthcare...) with the same commitment to your data projects.

Auchan
Boulanger
Business & Decision
Crédit Agricole Nord de France
Data Detective
Dim
Disneyland Paris
Equancy
Fleurance Nature
France Télévision Edition numérique
Hanesbrands
Jennyfer
Junto
La Redoute
Leroy Merlin
MGEN
Michelin
Optimal Ways
Playtex
PSA Peugeot Citroën
Showroomprive.com
Wonderbra
Auchan
Boulanger
Business & Decision
Crédit Agricole Nord de France
Data Detective
Dim
Disneyland Paris
Equancy
Fleurance Nature
France Télévision Edition numérique
Hanesbrands
Jennyfer
Junto
La Redoute
Leroy Merlin
MGEN
Michelin
Optimal Ways
Playtex
PSA Peugeot Citroën
Showroomprive.com
Wonderbra

Let's talk about your data challenges

30 minutes to diagnose your data gaps and identify growth levers. No commitment.

Quick Response

We usually respond within 24 hours

Why choose us?

  • Free audit of your tracking configuration
  • Custom quote within 48 hours
  • Tailored support adapted to your needs