Extremum Digital

Insights

Measurement, tracking & data — explained

Practical, no-fluff guides on the work we do — so you can make better decisions about your analytics and advertising.

Analytics7 min read

GA4 migration: a practical setup and transition guide

How to move from Universal Analytics to GA4 without losing data quality — an event-first model, BigQuery export, and the checks that keep reporting trustworthy.

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Tracking6 min read

Server-side GTM: what it is and why it matters

How server-side Google Tag Manager improves data quality, page speed and privacy compliance — and when it's worth implementing for your business.

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Tracking6 min read

Cookieless and API conversion tracking, explained

Why browser pixels lose conversions, how server-side Conversions APIs (Meta CAPI, Google, TikTok) recover them, and what a privacy-first setup looks like.

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Data6 min read

ROPO: connecting online marketing to offline sales

Research online, purchase offline — how to measure the impact of digital marketing on in-store revenue and stop under-crediting your best channels.

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Checklist8 min read

Is your tracking costing you sales? A 15-point self-audit

A practical checklist to find out whether your GA4, conversion tracking and dashboards are quietly under-reporting revenue — and where the money leaks are.

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Google Ads6 min read

Why sending revenue to Google Ads optimises for the wrong customers

Bidding to revenue is easy but misleading. How value-based bidding sends profit or predicted LTV to Google Ads — server-side, without exposing margin data — so Smart Bidding optimises for real business value.

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