Google Analytics 4: Setup and the Core Reports
What is Google Analytics and how is GA4 set up? The event model, the five core reports and the numbers a small business should watch, explained plainly.

On most small business sites, Analytics either does not exist at all, or someone set it up in 2021 and no one has opened it since. The result: money goes to ads, and the answer to "is it working" runs on gut feeling. One cannot manage without measuring; that is marketing's law of physics.
The current answer to the "what is Google Analytics" question is GA4: the present generation of Google's free analytics platform. This article does two jobs: it explains the system in plain language (GA4's event model confuses many) and shows the five reports a small business should genuinely watch.
GA4's logic: everything is an event
The old Analytics was built on the "pageview"; GA4 is built on the event: a page opened, a button clicked, a form submitted, a video watched; all are events speaking the same language. This model's power is its flexibility: the action that matters to you (the WhatsApp click, the order button) can be turned into a measurement. The key concept trio: the event (what happened), the user (who), the session (one visit's frame).
Setup: 20 minutes
- analytics.google.com → create an account and a property (GA4 is selected by default).
- Add a data stream: web, your site's address; you receive a measurement ID (G-XXXX).
- Attach the code to the site: in WordPress via a plugin/the theme, in builders there is a ready field in the settings section; for a technical team, Google Tag Manager is the tidier road.
- The check: with Reports → Realtime open, enter the site from your own phone; if you see yourself, the stream works.
- The Search Console link: Admin → Product links; the GSC data shows inside Analytics.
The key step: define the conversions
Installed but conversion-less Analytics is a steering wheel without a car. The typical key events for a small business: a form submission, WhatsApp/call clicks, an order completion. Simple clicks (tel:, wa.me links) get marked as events in GA4 with a few clicks; forms and orders, depending on the platform, want a ready integration or a small setup. Once this step is taken, all the reports switch from "visitor" language to "result" language.
The five core reports
| Report | Its question | Practical use |
|---|---|---|
| Realtime | What is happening now? | The instant check of a new ad/post |
| Acquisition (Traffic) | Where do the visitors come from? | Channel comparison: organic, social, ads, direct |
| Engagement → Pages | Which pages work? | Finding the strong content and multiplying it |
| Key events / Conversions | Which channel brings the result? | The basis of budget decisions |
| Retention | Do they come back? | The content strategy's health test |
The reading rule: numbers speak in ratios, not one by one. "Instagram 500 visitors, search 200" is incomplete information; "Instagram 500 visitors 2 enquiries, search 200 visitors 9 enquiries" is a budget decision. A channel's value is not the traffic volume but the result density.
The monthly 30-minute analysis routine
GA4 does not need daily viewing (Realtime excepted; it is a checking tool). The workable rhythm is monthly: the conversion comparison across channels (what works, what eats money), the top 10 pages (which content pulls; the refresh candidates show here too), the device split (if mobile conversion is sharply below desktop, there is a mobile UX problem) and the trend line (against last month, against the same month last year). The output of those 30 minutes should be a three-sentence decision: what we raise, what we cut, what we test.
Frequently asked questions about Google Analytics
Is GA4 free?
For all of a small-to-medium business's needs, yes. The paid version (Analytics 360) is for large corporate volumes; when you reach that threshold, your analytics team will tell you.
Why don't the numbers match Search Console?
Different measurement methods: GSC counts the click in the search result, GA4 the session where the visitor arrived and the script loaded; blockers, exits and redirects get lost in between. Both are reliable for trends; do not expect one-to-one equality.
Is the cookie banner / GDPR side needed?
If your audience includes EU users or you operate internationally, the consent mechanism is a serious topic; in the local market too, noting the use of analytics on the privacy policy page is correct practice. Solve the legal side with a lawyer, the technical side with consent mode.
Does Analytics replace the ad platforms' own statistics?
No, it complements them: an ad platform measures its own channel (often generously), GA4 all channels with one method. When the platform says "5 conversions" and GA4 says "2", the truth usually sits in the middle; what matters is choosing one system as the decision benchmark.
Professional support
Want to combine the measurement system with the sales funnel?
For diagnostics, priorities and implementation architecture, see the Revenue & Conversion Systems service.
Sources and further reading
Where to verify the source
The interface and feature names are updated frequently by Google.
Continuing the topic
Measurement is one link of the decision chain; the neighbouring links:
- The Google Search Console guide
- KPIs in marketing
- What is an A/B test
- The sales funnel
- Other articles on this topic
This week's work is two steps: set up GA4 and mark ONE key event (a WhatsApp click suffices). Next month, for the first time, you will answer the "are the ads working" question with a number.
I'm Anar Rustamli - a strategist, entrepreneur, and AI adoption leader working at the edge of growth, technology, and human thinking. Since 2016, my work has focused on helping businesses evolve in a rapidly changing digital landscape. I design growth systems, AI-powered workflows, and strategic frameworks that align performance with purpose. I believe real growth happens when strategy, data, and human insight work together - and my mission is to help businesses adopt AI in a way that strengthens both their results and their identity.

