Marketing technology · Valais, Switzerland

Sales that are measured, not guessed.

I make tracking reliable, structure Google Ads campaigns and connect marketing tools to each other. The result: every decision is based on real sales, not on numbers that contradict each other.

  • Google Ads and paid media
  • GA4, GTM, server-side
  • Shopify and automation
  • SEO, GEO and AI
etienne.jpg
Portrait of Etienne Dayer

Tools I use

  • Google Ads
  • GA4
  • Google Tag Manager
  • Server-side
  • Shopify
  • Merchant Center
  • Consent Mode v2
  • Meta CAPI
  • Microsoft Ads
  • Google Search Console
  • SEO
  • GEO
  • Zapier
  • Airtable
  • ActiveCampaign
  • Looker Studio
  • AI
in agencies and in-house
9 years
tracking and acquisition projects
35+
Master’s in Information Systems, Lausanne
HEC
working languages: French, German, English
3

Sound familiar?

The symptoms I fix.

Things marketing teams often say. Behind each one there is a specific technical problem, and a fix.

  • GA4, Google Ads and Shopify never show the same revenue.

    What I do: I trace the gap back to its cause (duplicates, taxes, fees, attribution) and realign the measurement.

  • Since the cookie banner went live, our conversions have dropped.

    What I do: Consent Mode v2, Enhanced Conversions and server-side tagging, while respecting consent.

  • Our deals close in the CRM. Google Ads never sees them.

    What I do: the GCLID follows the lead until the sale, then the real revenue is sent back to Google Ads.

  • We spend hours copying data from one tool to another.

    What I do: automations between shop, CRM and spreadsheets (Zapier, Airtable, APIs, webhooks).

  • When we ask ChatGPT, it cites our competitors, never us.

    What I do: technical SEO, structured data and content designed to be picked up by AI assistants (GEO).

  • Monday reporting takes us half a day.

    What I do: Looker Studio dashboards that update automatically, and AI-assisted workflows for summaries.

audit-tracking.log
  • FoundPurchase conversion counted twice
  • FoundConsent Mode v2 not configured
  • FoundOrder value inconsistent across platforms
  • FoundGCLID lost between form and CRM
  • FoundProducts disapproved in Merchant Center
  • FoundEnhanced Conversions turned off
Typical example, for illustration

01 · Expertise

Four levers, one system.

Acquisition is only as good as the data that steers it. I work on the campaigns, the measurement, organic visibility and the tools that connect it all to sales.

Google Ads and paid media

Search, Shopping and Performance Max campaigns structured to buy the right clicks, and steered by the real value of sales.

Google Ads · Microsoft Ads · Meta Ads · Merchant Center

See my work

GA4 and server-side tracking

Server-side Google Tag Manager, Consent Mode v2 and offline conversions: sales are reported cleanly, including those closed in the CRM.

GA4 · Google Tag Manager · Meta CAPI · Looker Studio

See a sample audit

SEO and GEO

A website that Google understands and ranks, with content structured to be picked up in AI assistants’ answers.

Google Search Console · Technical SEO · Structured data · GEO

Talk for 20 min

Automation and AI

Shop, CRM and spreadsheets connected to each other, and AI-assisted workflows for reporting and repetitive tasks.

Shopify · Zapier · Airtable · ActiveCampaign · Klaviyo · API

See my work

Platforms I use every day

  • Google Ads
  • Google Analytics 4
  • Google Tag Manager
  • Google Search Console
  • Google Merchant Center
  • Looker Studio
  • Meta Ads
  • Microsoft Ads
  • Shopify

02 · Work

What I have built.

Client names withheld

03 · Approach

Measure first, then optimise.

  1. Level 1DiagnoseAudit of accounts, tags and feeds: where data gets lost, and where budget gets lost.
  2. Level 2Make it reliableClean, documented tracking and conversions that reflect real sales.
  3. Level 3Optimise and automateCampaigns steered by accurate signals, repetitive tasks handed over to tools.

Structured campaigns+reliable measurement+connected tools=decisions based on real sales

Education: Master’s in Information Systems, HEC Lausanne · Bachelor’s in Business Administration, University of Fribourg.

04 · Contact

A project or a question? Let’s talk.

Shall we talk?

Pixel art avatar of Etienne Dayer