There are about seven marketing metrics to track as a founder. Agency dashboards tend to show forty, because forty looks like diligence. A founder can act on about seven, and looking at the rest daily actively makes decisions worse — you start reacting to noise.
Here's the list, with how often to look.
1. Blended cost per customer — weekly
Total marketing spend divided by new customers. Not what any platform reports about itself.
This is the number that can't be gamed, because it doesn't depend on anyone's attribution claim. If it's under your ceiling, you're fine, whatever the dashboards argue among themselves.
2. Your CAC ceiling — quarterly
What a customer is worth: gross profit per order, times orders per customer per year, times the share you're willing to spend. The full calculation is here.
Recalculate when margins, pricing or repeat rate change. Without this number, "is our CAC good?" is unanswerable.
3. Qualified lead rate — weekly
What share of enquiries were worth your team's time. A rising lead count with a falling qualified rate means the campaign is finding cheaper, worse people.
This requires someone to mark leads as qualified. It's five seconds per lead and it's the highest-value data your business produces.
4. Time to first contact — weekly
Measured in minutes. In competitive categories the first business to reply wins a disproportionate share regardless of price.
Track it, publish it internally, and watch it drift the moment nobody is looking.
5. Repeat purchase rate — monthly
For D2C, the number that raises your ceiling. Improving this is usually easier than lowering acquisition cost, and it compounds.
6. Creative concentration — monthly
What share of spend is going through your single best ad. Above roughly 70% you're one fatigue curve away from a bad month. It's an early warning, and almost nobody watches it.
7. "How did you hear about us?" — continuously
One optional question on your form. Unscientific, and consistently more informative than any attribution model — it's the only thing that catches word of mouth, a WhatsApp forward, or an AI assistant recommending you. Everything else is invisible to pixels, and that gap is bigger than most founders assume.
If a number wouldn't change a decision this week, it doesn't belong on the weekly report.
Marketing metrics to track less often, or not at all
- Impressions and reach. They've never paid a salary.
- Click-through rate in isolation. A high CTR on an ad that doesn't convert is a well-written promise you can't keep.
- Daily ROAS. Too volatile to act on. Weekly at the earliest.
- Cost per click. Cheap clicks from the wrong people are a cost, not a saving.
- Follower counts. Unless you monetise the audience directly.
The weekly review that works
Fifteen minutes: blended cost per customer, qualified lead rate, time to first contact. Then one question — what are we changing this week, and what do we expect it to do?
A report that doesn't end in a decision is a status update.
How long before acquisition cost comes back is the number that limits growth — the CAC payback calculator gives it to you.
Two of these deserve their own working: payback period, which caps how fast you can grow, and the LTV to CAC ratio, which is the number most often calculated generously.
Questions people ask
What marketing metrics should a founder actually track?
Blended cost per customer, your acquisition cost ceiling, qualified lead rate, time to first contact, repeat purchase rate, creative concentration, and what people say when asked how they heard about you. Seven, at different frequencies.
How often should I look at them?
Weekly for the operational ones, quarterly for the ceiling, monthly for retention. Daily checking of anything turns normal variance into decisions, which is how accounts get wrecked.
Why is ROAS not on the list?
Platform ROAS measures what the platform claims credit for and gets more generous as you spend more. Blended cost per customer is the same question asked in a way the finance team recognises.
What is the single most neglected metric?
Time to first contact. It costs nothing to measure, it is almost always worse than people assume, and improving it moves revenue faster than any bidding change.
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