Freelance Google Tag Manager to optimize your tracking
You lose crucial data? I help you configure GTM for precise and compliant collection with GDPR — client-side and server-side tracking.
Does that sound interesting? - Are these GTM issues hindering your marketing decisions?
Are these GTM issues hindering your marketing decisions?
Your conversions don't track
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 navigating blind on your marketing campaigns.
GDPR concerns you
Do your GTM tags respect consent? Do you risk CNIL 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, creation of the tagging plan, client-side and server-side implementation.
Result:
+30% collected data.
Data Activation
Paramétrage avancé GTM : variables, déclencheurs, balises. Création d'audiences personnalisées, segmentation fine, intégration avec GA4 et Google Ads.
Result:
Precise and actionable tracking.
Data Privacy
Setup Consent Mode v2, CMP integration, consent conditional tags.
Result:
100% CNIL 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.
Tagging 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 make data more reliable and bypass ad blockers. In 2026, if you invest in acquisition, reliable tracking is almost mandatory to optimize your ROI.
Testing and validation
Tests on staging environment, verification with Tag Assistant, validation of data collection in GA4 and Google Ads.
Documentation and training
Delivery of complete documentation, training of marketing teams in GTM use, setting up alerts.
My GTM Services
A complete offer around Google Tag Manager for all your tracking needs.
Full GTM audit
In-depth analysis of your content, identification of errors, recommendations for improvement.
Custom tagging plan
Creation of a tagging plan adapted to your activity, your user journeys and your KPIs.
Client-side GTM implementation
Configuration de toutes les balises nécessaires : GA4, Google Ads, Facebook Pixel, LinkedIn, Hotjar...
Server-side tracking
Deployment of server-side GTM for more reliable and compliant data.
GDPR Setup & Consent Mode
CMP integration, Consent Mode v2 configuration, user consent conditional tags.
GTM Training
Practical training for your teams: GTM handling, tag creation, debugging and testing.
Client Testimonials
Concrete feedback from clients who trusted my expertise.
Julien D.
Digital Analytics Manager
Idkids
Long one-year mission for a large retail group. Nourdine's professionalism, organization and skills are real assets to successfully complete your analytics missions!
Delphine A.
E-commerce project manager
Jacadi
Nourdine supported us on data layer reliability missions... Very attentive, available, responsive, very rigorous and efficient, he managed to very quickly understand 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. Nourdine even went beyond requirements by being proactive.
Clément M.
CEO
Yumboes
Very satisfied, excellent work! Nourdine helped us define and implement the e-commerce tagging plan for our site. We will work together again as soon as the opportunity arises.
Bérengère D.
HR
Universem
Very good collaboration with Nourdine. His knowledge of the web analytics ecosystem and his technical skills are real assets for the success of our missions. He listens, is responsive and empathetic!
Clara C.
CEO
Flowthesun
Super responsive, friendly, educational and professional. A delight to make a custom tracking plan and discuss proposals. Super great.
About Nourdine Chebcheb
Google Tag Manager FAQ
The most frequently asked questions about Google Tag Manager.
What is Google Tag Manager (GTM)? +
Google Tag Manager est un outil gratuit de Google qui permet de gérer et déployer des balises de marketing (pixels, scripts de tracking) sans modifier le code de votre site. Centralisez tous vos tags : GA4, Google Ads, Facebook, LinkedIn, Hotjar... et modifiez-les facilement depuis une interface unique.
Why hire a GTM consultant? +
An expert GTM consultant guarantees you a complete tagging plan, optimal configuration of tags, GDPR compliance, and impeccable data quality. They save you time, avoid costly errors, and train your teams to use the tool autonomously.
What is the difference between client-side and server-side tracking? +
Client-side tracking collects data from the user's browser. Server-side tracking collects it on the 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 does it take to implement GTM? +
A simple GTM audit: 1-2 days. A complete implementation with tagging plan, client-side + server-side: 1-2 weeks. Training and documentation will add a few days. Everything 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 tagging plan, implement it with you, test together, train you, and deliver the 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 — no commitment.
)+150 projets GTM réalisés. Pourquoi pas le vôtre ?