What Is Google Analytics 4 — and How Do You Use It?

Google Analytics 4 (GA4) replaced the old Universal Analytics in 2023. If you have been putting off getting to grips with it, the time is now — Universal Analytics data is gone, and GA4 is where all future development sits.

Here is what GA4 is, how it differs from the old system, and the reports that actually matter for a small business.

What changed with GA4

The old Analytics tracked "sessions" — a visit to your site within a time window. GA4 tracks individual events: every page view, scroll, click, form submission and video play is recorded separately. This gives much richer data about how people actually behave on your site.

GA4 is also built for a future with fewer third-party cookies. It uses machine learning to fill gaps in tracking data and works better across devices — so you get a more accurate picture of the full customer journey.

The reports most businesses actually need

The Acquisition report shows where your traffic comes from: organic search, direct, paid, social, email. The Engagement report shows which pages hold attention (high engagement rate and long average engagement time are good). The Conversions report shows how often people take the action you care about.

Focus on a handful of numbers, not all of them. Define two or three key conversions — form submission, phone click, purchase — and measure against those consistently.

Getting set up correctly from the start

Install GA4 via Google Tag Manager where possible, as it gives more flexibility. Mark your key user actions as conversion events in the GA4 interface. Connect to Google Search Console for keyword and click data. Allow at least four to six weeks of clean data before drawing firm conclusions.

If you are unsure whether your GA4 tracking is configured correctly, we can audit your setup and ensure you are capturing the data that actually matters for your business goals.