GA4 and analytics case studies

Selected work by Marc Alexander, as a contract lead, an in-house specialist and a consultant.

Selected work.

Retail · Lead consultant

Halfords

Halfords' tracking had no single owner. Six months later, every tag was understood, the double counting explained, and server-side tagging ready for cutover.

Health · Ecommerce

Hertility Health

Privacy-first GA4 ecommerce tracking for a women's health brand, with a custom consent banner and bookings tracked as key events.

Property · In-house role

Knight Frank

Marc's work as Senior Web Analytics Specialist: GA4 measurement across more than 50 international property websites, from CMS-driven tracking to CRM attribution.

Ecommerce

The Super Prime

GA4 ecommerce tracking for a luxury property platform with no dataLayer, built entirely in GTM with no site code changes.

Events · Own site

Tap In London

Server-side GA4 without a Tag Manager server: an 80-line edge function that keeps returning iPhone visitors recognised, drops bots and only acts with consent.

Lead generation · Own site

How this site is tracked

The full setup behind metricowl.co.uk: consent first, a documented dataLayer, enquiries measured as a funnel, and automated tests.

Talk to Marc about it.

Tell Marc what's happening with your tracking. The quickest place to start is usually a GA4 mini audit: a prioritised list of what's broken and what to fix first.

Mini audit from £175.

Prefer to talk first? Choose "20-minute intro call" in the form.
Or email [email protected].

Marc replies personally, usually within one working day.