Freelance Google Tag Manager to optimize your tracking
You're losing crucial data? I help you configure GTM for precise and GDPR-compliant data collection — client-side and server-side tracking.
Sound familiar? — These GTM problems are holding back your marketing decisions?
These GTM problems are holding back your marketing decisions?
Your conversions aren't being tracked
GA4 shows 0 conversions while your sales are increasing. Impossible to attribute your performance to the right channels.
Your tracking is missing key events
Events are missing, tracking is partial. You're flying blind on your marketing campaigns.
GDPR is worrying you
Do your GTM tags respect consent? Are you at risk of sanctions?
Result: decisions based on incomplete and non-compliant data.
My GTM Expertise
4 areas of intervention for a reliable and scalable tracking system.
Data Tracking
Complete audit, tag plan creation, client-side and server-side implementation.
Result: +30% more data collected.
Data Activation
Advanced GTM configuration: variables, triggers, tags. Custom audience creation, fine segmentation, integration with GA4 and Google Ads.
Result: Precise and actionable tracking.
Data Privacy
Consent Mode v2 setup, CMP integration, consent-conditional tags.
Result: 100% GDPR compliant.
Data Quality
Quality audit, error correction, A/B testing with GTM, continuous monitoring.
Result: 100% reliable data.
My GTM Method
How I deploy your Google Tag Manager solution in 6 structured steps.
GTM Audit
Analysis of your existing GTM container, identification of missing tags, assessment of current tracking quality.
Tag Plan
Definition of KPIs to track, creation of detailed tagging plan aligned with your business and marketing objectives.
GTM Implementation
Configuration of variables, triggers and tags in GTM. Client-side deployment for events and conversions.
Server-side Tracking
Implementation of server-side GTM to reliabilize data and bypass ad blockers. In 2026, if you invest in acquisition, reliable tracking is practically mandatory to optimize your ROI.
Testing & Validation
Tests on staging environment, verification with Tag Assistant, validation of data flowing into GA4 and Google Ads.
Documentation & Training
Complete documentation delivery, training marketing teams on GTM usage, alert setup.
My GTM Services
A complete offering around Google Tag Manager for all your tracking needs.
Complete GTM Audit
In-depth analysis of your container, error identification, improvement recommendations.
Custom Tag Plan
Creation of a tagging plan adapted to your business, user journeys and KPIs.
Client-side GTM Implementation
Configuration of all necessary tags: GA4, Google Ads, Facebook Pixel, LinkedIn, Hotjar…
Server-side Tracking
Deployment of server-side GTM for more reliable and compliant data.
GDPR & Consent Mode Setup
CMP integration, Consent Mode v2 configuration, consent-conditional tags.
GTM Training
Practical training for your teams: GTM onboarding, tag creation, debugging and testing.
Client testimonials
Concrete feedback from clients who trusted my expertise.
Julien D.
Digital Analytics Manager
Idkids
A year-long mission for a large retail group. Nourdine's professionalism, organization and skills are real assets for carrying out your analytics missions!
Delphine A.
E-commerce Project Manager
Jacadi
Nourdine supported us on datalayer reliability missions... Very attentive, available, responsive, very rigorous and efficient, he quickly understood our complex ecosystem!
Michael L.
CEO
Admaker
Nourdine is very professional. We needed a profile urgently and Nourdine was the only person able to meet our expectations. He even went beyond requirements by being proactive.
Clément M.
CEO
Yumboes
Very satisfied, excellent work! Nourdine helped us define and implement the e-commerce tracking plan for our site. We will work together again when the opportunity arises.
Bérengère D.
HR
Universem
Great collaboration with Nourdine. His knowledge of the web analytics ecosystem and his technical skills are real assets for mission success. Attentive, responsive and friendly!
Clara C.
CEO
Flowthesun
Super responsive, friendly, educational and professional. A delight for creating a custom tracking plan. Highly recommended.
About Nourdine Chebcheb
Frequently asked questions
The most frequently asked questions about Google Tag Manager.
What is Google Tag Manager (GTM)? +
Google Tag Manager is a free Google tool that allows you to manage and deploy marketing tags (pixels, tracking scripts) without modifying your site's code. Centralize all your tags: GA4, Google Ads, Facebook, LinkedIn, Hotjar… and easily modify them from a single interface.
Why use a GTM consultant? +
A GTM expert consultant guarantees you a complete tag plan, optimal tag configuration, GDPR compliance, and impeccable data quality. It saves you time, avoids costly errors, and trains your teams to use the tool independently.
What's the difference between client-side and server-side tracking? +
Client-side tracking collects data from the user's browser. Server-side tracking collects it server-side. Server-side offers several advantages: resistance to blockers, more reliable data, better GDPR compliance. I often recommend both for a robust solution.
How long to set up GTM? +
A simple GTM audit: 1-2 days. A complete implementation with tag plan, client-side + server-side: 1-2 weeks. Training and documentation will add a few days. It all depends on the complexity of your site.
How does a GTM collaboration work? +
We start with a free scoping call. Then I audit your existing GTM, propose a tag plan, implement it with you, test together, train you, and deliver documentation. Personalized support at every step.
Book your free 30-minute GTM audit.
We analyze your Google Tag Manager container together and I give you concrete recommendations — with no commitment.
150+ GTM projects completed. Why not yours?