GTM Analytics

Services

Clear offers, fixed scope, no surprises.

Every project follows the same path: audit what exists, build what’s missing, then keep it accurate. You can start at any stage. Each offer below lists what you get, how long it takes and where pricing starts.

Analytics dashboards on a laptop and phone

1. Audit

Know what’s broken before you spend on fixing it

Tracking audit

For teams who suspect their GA4 or ad platform numbers are wrong but don’t know where or by how much.

Duration 5–7 daysPrice from 800€Format fixed price

  • Audit of one analytics platform (for example GA4) and one data source (for example your site or app)
  • Testing and debugging of every tag, trigger and pixel, including consent behaviour
  • GA4 compared against your backend: orders, CRM leads or bookings
  • Action plan to fix each issue, ranked by impact
  • Documentation of what was found

GA4GTMConsent Mode v2Meta PixelGoogle Ads

Measurement plan

For new sites, replatforming projects, or setups that grew without a plan.

Duration 1–2 weeksPrice from 1600€Format fixed price

  • Business alignment workshop (2 hours)
  • KPI and metrics definition
  • Analytics stack validation
  • Tagging plan, event model and dataLayer specs your developers can implement
  • Documentation

See an example tagging plan →

2. Build

Tracking, conversions and reporting done properly once

GA4 & GTM implementation

For sites that need a clean, documented setup, built from the measurement plan.

Duration 2–4 weeksPrice from 1300€Format fixed price

  • Structured dataLayer, with specs for your developers or implemented by me
  • GA4 events, ecommerce or lead-gen funnels, custom dimensions and conversions
  • Consent Mode v2 wired to your consent platform
  • Google Ads, Meta, LinkedIn and TikTok tags cleaned up and deduplicated
  • QA in staging and production, then a written handover document

dataLayerpurchasegenerate_leadad_user_dataad_personalization

Server-side tracking & ad conversions

For advertisers losing conversions to ad blockers, browser restrictions or broken pixels.

Duration 4 weeksPrice from 3500€Plus hosting

  • Server-side GTM on your own subdomain (Addingwell or Stape)
  • Meta Conversions API with event deduplication
  • Google Ads enhanced conversions and offline conversion import from your CRM
  • Tracking of new vs returning customers
  • Monitoring of match quality and event volumes after go-live

sGTMMeta CAPIevent_idEnhanced conversions

Dashboards & BigQuery

For teams that want one trusted report instead of five conflicting ones.

Duration 2–3 weeksPrice on requestFormat fixed price

  • GA4 BigQuery export set up and modelled into clean tables
  • Ad spend, CRM and ecommerce data joined in one place
  • Looker Studio or Power BI dashboards built around your weekly decisions
  • Metric definitions written down so everyone reads the same numbers

BigQuerySQLLooker StudioPower BI

3. Run

Tracking breaks quietly. Someone should be watching.

Analytics partner

For brands and teams without an in-house analyst. A monthly retainer, cancel with 30 days’ notice.

Commitment monthlyPrice on request

  • Weekly automated checks on key events and conversion volumes
  • Fixes after site releases, theme updates or new apps
  • Monthly review call with insights and recommendations
  • A set number of hours each month for new tracking requests

Team training

For marketing teams who want to read and manage their own analytics.

Format half or full dayPrice on requestRemote or on site

  • GA4 reports and explorations using your own property
  • GTM fundamentals: tags, triggers, variables, preview mode
  • Looker Studio for the people who build the weekly report
  • Slides and exercises your team keeps

White-label for agencies

For performance and SEO agencies that need GA4, GTM and server-side depth on client projects.

Format per project or day ratePrice on request

  • Delivered under your agency’s name, NDA on request
  • Audits, implementations and dashboards for your clients
  • Direct access in your Slack or Teams channel
Laptop, notebook and phone on a wooden desk

Documented, so you own it.

Every project ends with a tagging plan, container overview and dataLayer documentation. No black box, no lock-in.

How a project runs

Five steps from first call to handover.

  1. Discovery call

    30 min · free

    Your goals, your stack and what’s going wrong.

  2. Proposal

    after the call

    Fixed scope, price and timeline in writing.

  3. Audit & plan

    week 1

    Access, review and an agreed list of what to build.

  4. Build & QA

    weeks 2–4

    Implementation, tested in staging then production.

  5. Handover

    final week

    Documentation and a walkthrough so your team owns the setup.

Questions

Before you book.

Do you work with my CMS or platform?

Yes for Shopify, WordPress and WooCommerce, Webflow, custom builds and most headless setups. If GTM can run on it, I can work with it.

What access do you need?

Read access to GA4 and GTM for an audit. Edit or publish access for implementation work. I never need your passwords; you add my account to your tools.

Is the price really fixed?

Yes, once the scope is agreed in writing. If something new comes up mid-project, I quote it separately before doing it.

Do you handle GDPR and consent?

I implement Consent Mode v2 and make sure tags respect your visitors’ choices. I’m not a lawyer, so the wording of your banner and privacy policy stays with your legal adviser.

Do you work in French?

Yes, I’m a native French speaker. Projects run in English or French.

Not sure which offer fits?

Book a call. Most projects start with the audit, and I’ll tell you honestly if you don’t need one.

Book a free 30-min call