Free Website Tracking Audit | GA4, GTM & Marketing Pixel Checker - AssertionHub
Free - no account required

Free Tracking
Audit

Validate GA4, GTM, and marketing pixels on any website. Detect missing parameters, duplicates, and Consent Mode V2 issues.

GTMGA4MetaGoogle Ads

Run a free audit

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Validation in 5โ€“10 minutes โ€” no account needed.

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What we validate

Vendor Detection

All tracking vendors detected โ€” GA4, Meta, Google Ads, GTM, and more.

Event Validation

Network requests and GTM data layer pushes with pass/fail status per event.

Built-in Rules

Purchase missing required fields, ecommerce items absent, page_view incomplete, and many more.

Consent Mode V2

Consent state tracking (granted/denied) for ad_storage and analytics_storage.

Duplicate Detection

Identifies duplicate tracking requests that could inflate your data.

Validation in 5โ€“10 minutes ยท Results available for 7 days ยท No signup required

Frequently Asked Questions

The audit validates all major tracking vendors on your website, including GA4, Google Tag Manager (GTM), Facebook Pixel, and Google Ads. It detects fired events, checks for missing or invalid parameters, flags duplicate tracking requests, and verifies Google Consent Mode V2 signals.

Yes. The audit detects GTM containers, intercepts data layer pushes, giving you a full picture of what GTM is firing and whether the data is correct.

Tag Assistant only shows you what fired. AssertionHub validates whether what fired is correct: checking event parameters against expected schemas, detecting duplicates, and surfacing built-in QA rules (e.g. purchase events missing required fields, page_view missing parameters).

Yes. The audit reads consent state signals (granted/denied) for ad_storage, analytics_storage, and other consent types, so you can verify your CMP is correctly integrating with Google Consent Mode V2.

Results are delivered to your inbox in 5โ€“10 minutes. No account or credit card required.