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GA4 Analytics Audit — Find What Your Data Is Missing

Most GA4 Setups Are Broken. Yours Probably Is Too.

43% of GA4 implementations have critical tracking gaps — misattributed conversions, missing events, broken funnels. We audit your entire data model and tell you exactly what’s wrong and what it’s costing you.

What We Audit

A Full Data Model Review — Not a Checklist.

We go layer by layer through your GA4 property, GTM container, and data layer to find every gap between what’s actually happening on your site and what your reports show.

01
Event Tracking Validation

Every event in your GA4 property is verified against actual user behavior. Missing clicks, broken form submissions, untracked scroll depth — we find them all.

02
Conversion Path Integrity

We trace every conversion from first touch to form submission and verify that GA4 is capturing the full path — including cross-device and cross-session attribution.

03
Data Layer Architecture

Your data layer is the foundation of accurate tracking. We audit the structure, variable naming, and push timing to ensure GTM is receiving clean, complete data.

04
Custom Dimensions & Metrics

If your GA4 is missing user properties, content groups, or custom dimensions tied to your business model, you’re flying blind on what drives conversions.

05
Filtering & Spam Traffic

Internal traffic, bot traffic, and developer sessions pollute your data. We verify your filters are configured correctly and your reports reflect real user behavior.

06
Attribution Model Review

Last-click is almost always wrong for B2B. We audit your attribution settings and compare models to show you where credit is being misassigned across channels.

What You Get

Five Deliverables. Every Issue Documented with Business Impact.

Not a generic checklist. A property-specific audit where every finding includes the exact setting, what’s broken, what to fix, and what it’s costing you.

Deliverable 01

GA4 Health Report

A complete property-level audit covering all seven audit framework points: configuration, event tracking, conversions, data quality, attribution, audiences, and CRM alignment. Every issue is graded by severity and estimated revenue impact.

  • Configuration & account settings review
  • Event tracking accuracy validation
  • Conversion path integrity check
  • Spam & bot traffic filter audit
  • Attribution model and channel grouping analysis
  • GA4–CRM data alignment verification
GA4 Health Report — mv3marketing.com
Issues Found — Prioritized by Revenue Impact
Critical
Duplicate conversion event firing 2× per session
Demo Request · Est. impact: $80k+ wasted ad spend/6mo
High
Data retention set to 2 months — historical data lost
Property Config · Blocks YoY, cohort & funnel analysis
High
Internal IP addresses not filtered
Filters · Employee traffic inflating conversion rate by ~8%
Medium
Email campaigns missing UTM parameters
Attribution · 38% of email conversions misattributed to Direct
Medium
No CRM UTM passthrough on HubSpot forms
CRM Alignment · Cannot connect paid channels to closed revenue
Low
Branded paid search not separated in reports
Channel Groups · Organic & paid brand cannibalization invisible
Deliverable 02

Data Layer Specification

If your data layer needs restructuring, we deliver the complete spec your dev team needs to implement correctly — event names, parameters, trigger conditions, and push timing, with code examples for every event.

// Form submit event — correct spec
dataLayer.push({
'event': 'form_submit',
'form_name': 'audit_request',
'form_id': 'audit-form',
'user_email_domain': 'company.com'
});
Deliverable 03

GTM Container Audit

A documented review of your GTM container: every tag, trigger, and variable reviewed for unused rules, firing conflicts, duplicate events, and variable errors — with specific fixes for each.

GA4 Config Firing OK
Demo Form Submit DUPLICATE — firing 2×
Old UA Tag Unused — remove
Conversion Linker Firing OK
Meta Pixel Missing fbclid param
Fix Priority Matrix — Effort vs. Revenue Impact
IssueEffortImpactPriority
Fix duplicate conversion tag 30 min Critical Fix Today
Add internal IP filter 15 min High Fix Today
Set retention → 14 months 5 min High Fix Today
UTM all email campaigns 2 hrs High This Week
Add CRM UTM passthrough 4 hrs High This Week
Rebuild channel groupings 2 hrs Medium This Month
Configure audience segments 3 hrs Medium This Month
Deliverable 04

Fix Priority Matrix

Every issue from the audit ranked by two dimensions: effort to fix and revenue impact of leaving it broken. Sorted so the first three rows are always your highest-leverage fixes — the ones your team should action before the review call ends.

Why this matters:

Most GA4 reports list problems without telling you which ones to fix first. The priority matrix makes the decision for you — sorted by the ratio of effort invested to data quality recovered.

Deliverable 05

30-Minute Review Call

A live walkthrough of the GA4 Health Report and Fix Priority Matrix with your analyst or marketing ops team. We explain every finding, answer questions, and confirm the fix specs — so the report doesn’t sit in a folder.

Request the GA4 Audit →
Walk through every critical and high-priority finding
Confirm data layer spec with your dev team
Review GTM fix implementation plan
Answer attribution model questions
Agree on implementation timeline and owner
Real Audit Findings

What GA4 Audits Typically Find

Based on MV3’s analysis of 40+ B2B GA4 properties audited in 2024–2025.

78%

of properties had at least one critical tracking error

62%

had data retention still set to the 2-month default

41%

had duplicate conversion events firing per session

71%

had UTM gaps on email or social campaigns

All figures from MV3 Marketing proprietary audit data. Individual results vary by property complexity and implementation history.

Know What Your Analytics Are Actually Telling You.

Stop making decisions based on broken data. Get the GA4 audit and know exactly what’s being tracked — and what isn’t.

Request the GA4 Audit →