Measuring what works: analytics and attribution
Without measurement, you fly blind
An entrepreneur who doesn't measure their acquisition spends at random: they don't know which channel brings customers, which wastes money, where the funnel leaks. Measurement isn't a big-company luxury — it's what turns acquisition from a bet into a manageable system. This chapter covers the tools to finally know what actually works.
The essential measurement tools
- Google Analytics 4 (free): traffic, sources, on-site behavior. Unavoidable but sometimes complex.
- Plausible or Fathom: simple, privacy-respecting alternatives, no cookie banner. Ideal for a solo (paid, affordable).
- Google Search Console (free): SEO performance, queries, positions.
- Microsoft Clarity (free): heatmaps and session recordings to see how visitors behave.
- The native analytics of each network and email tool for per-channel performance.
Which tool for which question
| Question | Tool |
|---|---|
| Where does my traffic come from? | GA4 / Plausible |
| What do I rank for on Google? | Search Console |
| Why do people leave my page? | Microsoft Clarity |
| Which email converts? | Email tool analytics |
The few numbers that really count
Don't drown in data. Five indicators are enough to steer acquisition:
- Traffic by source: where visitors come from.
- Visitor → lead conversion rate: is the page capturing?
- Lead → customer conversion rate: is nurturing converting?
- Customer acquisition cost (CAC): how much a customer costs per channel.
- Customer lifetime value (LTV): how much a customer brings.
If you could only track two numbers, track CAC and LTV: their ratio decides whether your acquisition is viable.
Attribution: who gets credit for the sale?
A customer has often seen a post, read an article, received three emails before buying. Crediting the sale to the "last click" distorts the reading and gets useful upstream channels cut. Without an over-engineered setup, two reflexes are enough for a solo:
- Ask new customers "how did you hear about us?" — often more reliable than any tool.
- Use UTM links (parameters in your URLs) to distinguish sources in your analytics.
See before you assume
Numbers tell what; session recordings tell why. A tool like Microsoft Clarity shows where visitors hesitate, click on nothing, abandon a form. Fifteen minutes watching real sessions often reveal more than a month of dashboards. It's psychology observed rather than assumed.
Decide with data, don't drown in it
The goal of measurement isn't to produce pretty charts, but to make a decision: double down on this channel, cut that one, fix this page. Set a weekly 30-minute appointment with your numbers, draw one action from it, execute. Data that leads to no decision is wasted time.
The over-measurement trap
Conversely, some spend more time configuring dashboards than acquiring customers. At the start, GA4 or Plausible plus a simple spreadsheet are enough. Add sophistication when volume justifies it, not before. Data must serve action, not replace it.
Key takeaways
Measuring turns acquisition from a bet into a system: install simple tools (GA4 or Plausible, Search Console, Clarity), track five key numbers including CAC and LTV, attribute sales via UTM and by asking customers directly, and watch real sessions to understand the why. Each week, draw one decision from your numbers. You now have all the links: it remains to assemble them into one coherent funnel.