Web Analytics with GA4: What to Track and Why It Matters

You can't improve what you don't measure — and web analytics with GA4 is how modern businesses understand what's actually happening on their websites. Google Analytics 4 replaced the old Universal Analytics with a fundamentally different, event-based model that tracks how people move through your site and what they do, not just which pages they load. Used well, it turns vague hunches into evidence and shows you exactly where visitors succeed, struggle, and leave. This guide explains what GA4 changed, what you should actually track, and how to turn the numbers into better decisions.

How GA4 Is Different

If you remember the old Google Analytics, GA4 will feel unfamiliar — and that's by design. The previous version was built around pageviews and sessions. GA4 is built around events: every meaningful interaction — a page view, a click, a scroll, a form submission, a purchase — is an event with its own details.

This event-based model is more flexible and more privacy-conscious, but it also means the default reports show less out of the box. You get the most value when you deliberately configure GA4 to track what matters to your business.

The Metrics That Actually Matter

GA4 can drown you in numbers. The skill is knowing which few actually inform decisions. Vanity metrics feel good but change nothing; actionable metrics guide what you do next.

Focus on these

• Conversions (key events). The actions that matter to your business — purchases, sign-ups, form submissions, calls. This is the point of the whole exercise.
• Engagement rate. The share of sessions where visitors actually engaged rather than bouncing instantly. A more honest signal than raw pageviews.
• Traffic sources. Where visitors come from — search, social, direct, referral, paid — so you know which channels earn their keep.
• User journeys and paths. How people actually move through your site, and where they drop off before converting.
• Landing page performance. Which entry pages bring engaged visitors versus which ones leak them.

Be skeptical of these

• Raw pageviews in isolation — high traffic that never converts is just noise.
• Total users without context on quality or intent.
• Any number you can't tie to a decision. If a metric wouldn't change what you do, stop watching it.

Setting Up Conversion Tracking

The single most valuable thing you can do in GA4 is track your conversions properly. Without conversion tracking, you're measuring activity, not results.

1. Define your key events. Decide what a 'win' is for your site — a purchase, a lead form, a demo request, a newsletter sign-up.
2. Mark them as key events. In GA4, flag these events so they're treated as conversions in reporting.
3. Track the steps leading to them. Instrument the stages of your funnel so you can see where people fall out.
4. Connect the value. Where possible, assign monetary value to conversions so you can measure return, not just count.

This is where analytics stops being a dashboard you glance at and becomes a tool that directly informs your digital marketing spend — showing you which campaigns and channels actually produce results versus which merely produce traffic.

Understanding the Funnel

Most visitors don't convert on their first visit or their first page. They move through a journey, and every step loses some people. GA4's funnel exploration lets you see exactly where that drop-off happens.

Say your checkout has four steps and you discover that most abandonment happens at step three. That's not a vague problem anymore — it's a specific, fixable one. You can investigate that single step, form a hypothesis, change it, and measure whether the drop-off improves. This loop — observe, hypothesize, change, measure — is the whole point of analytics, and it's far more powerful than staring at a total conversion number.

Analytics and Privacy

You cannot talk about web analytics today without talking about privacy. Regulations increasingly require consent before tracking, and users increasingly expect it. GA4 was built with this reality in mind, but you still have responsibilities.

• Get consent before tracking where the law requires it, and honor the user's choice.
• Be transparent in a clear privacy policy about what you collect and why.
• Avoid collecting personal data you don't need — never put personally identifying information into analytics.
• Respect opt-outs and design your tracking to work within consent frameworks.

Good analytics and good privacy aren't in conflict. A well-configured setup gives you the insight you need while respecting your visitors — and staying on the right side of regulation.

Turning Data Into Decisions

Data that never changes a decision is just expensive trivia. The businesses that win with analytics build a habit of acting on what they find.

1. Ask a specific question. Start with 'why do people abandon checkout?' not 'let me look at the dashboard.'
2. Find the relevant data. Use GA4's reports and explorations to answer that specific question.
3. Form a hypothesis. Propose a concrete reason and a concrete change.
4. Test the change. Make the change and measure whether the metric moves.
5. Keep or revert. Let the data decide, then move to the next question.

This disciplined loop is how a well-built website gets steadily better over time, rather than being redesigned on gut feeling every few years.

Common GA4 Mistakes

• Relying on default reports only. GA4's real power is in configured events and explorations tailored to your business.
• Not marking conversions. Without key events, you're measuring activity instead of outcomes.
• Chasing vanity metrics. High traffic that doesn't convert tells you nothing useful.
• Ignoring data quality. Misconfigured tracking or duplicate tags produce numbers you can't trust — verify your setup.
• Collecting data but never acting. The most common failure of all is treating analytics as a report to admire rather than a tool to use.

Frequently Asked Questions

Why is GA4 so different from the old Google Analytics?

GA4 was rebuilt around an event-based model rather than sessions and pageviews, with built-in cross-device tracking and a privacy-focused design. This makes it more flexible and future-proof, but it also means the default reports show less until you configure the events and conversions that matter to your business.

What should I track first in GA4?

Start with your conversions — the key actions that represent success for your site, like purchases, sign-ups, or form submissions. Mark them as key events so GA4 treats them as conversions. Everything else is secondary; if you can't see whether visitors are completing your goals, you're measuring activity instead of results.

What's the difference between a vanity metric and an actionable one?

A vanity metric looks impressive but doesn't guide any decision — like raw pageviews with no conversion context. An actionable metric, such as where users drop off in your checkout funnel, points to a specific change you can make. If a number wouldn't change what you do, it's not worth watching.

Do I need user consent to use GA4?

In many jurisdictions, yes — you need consent before tracking, and you must honor the user's choice. GA4 is designed to work within consent frameworks, but you're still responsible for a clear privacy policy, requesting consent where required, and avoiding the collection of personal data you don't need.

How do I actually use analytics to improve my site?

Treat it as a loop: ask a specific question, find the data that answers it, form a hypothesis, make a change, and measure the result. This disciplined cycle turns analytics from a dashboard you glance at into a tool that steadily improves your site — far more effective than redesigning on gut feeling.

The Bottom Line

Web analytics with GA4 is only as valuable as the decisions it drives. Configure it to track your real conversions, focus on the handful of metrics that actually inform action, respect your visitors' privacy, and build the habit of testing changes against the data. Do that, and your site improves continuously instead of occasionally. If you'd like help setting up GA4 properly or turning your analytics into a growth engine, DIREKTDOTCOM is happy to help — reach out through our contact page.