What Is Google Analytics 4 and How Do You Actually Read It?

Google Analytics 4, usually shortened to GA4, is Google’s free tool for measuring what people do on your website. It is the current version and it replaced the old Universal Analytics, which stopped collecting data back in 2023. GA4 shows you how many people visited, where they came from, which pages they read and whether they went on to enquire or buy. If you only ever check one thing, check which channels bring you visitors who actually take action.

The catch is that GA4 is built for big marketing teams, so the interface can feel like a cockpit when all you wanted was a speedo. Here is the short version of what matters.

What GA4 is actually measuring

The old Analytics counted pageviews and sessions. GA4 counts events. Every scroll, click, page load, file download and form submission is an event with a name attached. That sounds fiddly, but it is why GA4 can tell you things like how many people watched your video or clicked your phone number, not just how many pages they loaded.

The events you care most about are the ones you mark as key events, previously called conversions. On a small business site that is usually a contact form submission, a phone tap on mobile, or a completed checkout.

Getting it onto a WordPress site

You need a Google account, a GA4 property for your website, and the measurement ID it gives you. That ID starts with a G. From there you have a few options:

• Paste the tracking snippet into your theme’s header, which is the lightest option if you have a custom theme and someone who can edit it safely.
• Use a small, well-maintained analytics plugin. Fine for most sites, just do not stack three of them and end up counting every visit twice.
• Use Google Tag Manager if you plan to track a lot of different actions or run ads. It is more setup up front and more flexible later.

Whichever way you go, load the site in a private browser window afterwards and check the Realtime report shows you. If it does not, the tag is not firing and everything after this point is guesswork.

The four reports worth your time

Ignore most of the menu. These four answer the questions business owners actually ask.

• Traffic acquisition. Where your visitors came from, split into organic search, direct, referral, social and paid. This is the report that tells you whether your work on the SEO basics is landing.
• Pages and screens. Which pages get read and which ones nobody opens. Useful for deciding what to improve and what to retire.
• Landing page. The first page people arrive on. If most of your traffic lands on a blog post rather than your services page, your internal links and calls to action on that post matter enormously.
• Key events. How many enquiries, calls or sales came through, and which channel delivered them. Traffic without this number is just a vanity metric.

Set the date range to compare the last 28 days against the previous period. Month on month is where trends show up. Day to day numbers bounce around too much to mean anything on a small site.

GA4 and Search Console do different jobs

People often confuse the two. Search Console shows what happens in Google before someone reaches you: the search terms, how often you appeared and how often you were clicked. GA4 picks up the story after they land. You want both, and they are worth linking together so search queries appear inside GA4. We covered the other half of the pair in our guide to Google Search Console.

Mistakes that make the numbers lie

A few things quietly wreck your data. Not filtering out your own visits means your team’s browsing looks like customer interest. Leaving key events unconfigured means you can see traffic but never know if it earned anything. Running the tag on a staging copy of the site mixes test data into the real property. And judging a brand new site by its first fortnight will only make you miserable, because search takes months to build.

One more thing worth saying plainly: analytics tells you what happened, not why. If the numbers say people leave your services page in eight seconds, GA4 will not tell you the page is confusing. That is a job for reading the page with fresh eyes, or asking a few customers. Our insights archive has more on writing pages that hold attention, and if you would rather hand the reporting side over entirely, the team at Defyn Digital handle ongoing analytics and search work.

Where to start this week

Install it, confirm it is tracking, mark your contact form as a key event, then leave it alone for a month. Come back and look at traffic acquisition and key events side by side. That single comparison will tell you more about your website than any dashboard full of graphs.

Not sure whether your tracking is set up properly, or what the numbers are telling you? Give us a ring on 02 9834 4119 or get in touch and we will take a look with you.