Trust your data before you act on it

Data Quality Audit

Bad data leads to bad decisions. Our data quality audits uncover tracking gaps, misconfigured events, and data inconsistencies across your analytics stack. We deliver a clear action plan to fix issues and establish data governance practices.

What you get

Full tracking audit

A detailed review of your entire analytics implementation across all platforms and properties.

Prioritized action plan

A clear, prioritized roadmap of fixes ranked by business impact and implementation effort.

Data governance framework

Processes and documentation to maintain data quality over time as your tracking evolves.

Data Quality Audit process

Discovery & Audit

We map your analytics ecosystem and document all tracking touchpoints.

Tracking Plan

We compare your current implementation against your business requirements.

Implementation

We test every event, parameter, and data flow for accuracy and completeness.

Quality Assurance

Cross-platform validation to ensure consistency across tools and reports.

Training & Support

A detailed audit report with recommendations and a governance playbook.

Featured work

Heineken / MyFranceBoissons

Onatera

MyLittleBox & Gambettesbox

Testimonials

Efficient, very proactive — I highly recommend Tag Expert. Their GA4 implementation gave us complete visibility into our customer journey.

Jean-Louis Monin

Head of Digital at The Invisible Collection

Tag Expert and their teams are structured, actively listen to client needs, and always seek the best solutions. Their mastery of GTM, GA, and the digital ecosystem is remarkable.

Valerie Gele

Digital Director at Otelo

Professional work, by a friendly and available team of professionals. Their tracking audit and implementation exceeded our expectations.

Philippe Meyrueis

CEO at Distrimed

They completely changed my relationship with my business metrics. The dashboards and tracking setup made data-driven decisions effortless.

Tarik Peudon

Founder at Clicboutic

Efficient, very proactive — I highly recommend Tag Expert. Their GA4 implementation gave us complete visibility into our customer journey.

Jean-Louis Monin

Head of Digital at The Invisible Collection

Tag Expert and their teams are structured, actively listen to client needs, and always seek the best solutions. Their mastery of GTM, GA, and the digital ecosystem is remarkable.

Valerie Gele

Digital Director at Otelo

Professional work, by a friendly and available team of professionals. Their tracking audit and implementation exceeded our expectations.

Philippe Meyrueis

CEO at Distrimed

They completely changed my relationship with my business metrics. The dashboards and tracking setup made data-driven decisions effortless.

Tarik Peudon

Founder at Clicboutic

Efficient, very proactive — I highly recommend Tag Expert. Their GA4 implementation gave us complete visibility into our customer journey.

Jean-Louis Monin

Head of Digital at The Invisible Collection

Tag Expert and their teams are structured, actively listen to client needs, and always seek the best solutions. Their mastery of GTM, GA, and the digital ecosystem is remarkable.

Valerie Gele

Digital Director at Otelo

Professional work, by a friendly and available team of professionals. Their tracking audit and implementation exceeded our expectations.

Philippe Meyrueis

CEO at Distrimed

They completely changed my relationship with my business metrics. The dashboards and tracking setup made data-driven decisions effortless.

Tarik Peudon

Founder at Clicboutic

Efficient, very proactive — I highly recommend Tag Expert. Their GA4 implementation gave us complete visibility into our customer journey.

Jean-Louis Monin

Head of Digital at The Invisible Collection

Tag Expert and their teams are structured, actively listen to client needs, and always seek the best solutions. Their mastery of GTM, GA, and the digital ecosystem is remarkable.

Valerie Gele

Digital Director at Otelo

Professional work, by a friendly and available team of professionals. Their tracking audit and implementation exceeded our expectations.

Philippe Meyrueis

CEO at Distrimed

They completely changed my relationship with my business metrics. The dashboards and tracking setup made data-driven decisions effortless.

Tarik Peudon

Founder at Clicboutic

Ready to unlock your data potential?

Talk with the team