Metrics for SEO People (CTR, CVR, CPA, ROAS)
If you know SEO
In SEO you can celebrate traffic growth. In Ads, traffic growth without conversion quality is a budget leak.
The 4 metrics you will use constantly
| Metric | Meaning | How to use it |
|---|---|---|
| CTR | clicks / impressions | early relevance signal, not success |
| CVR | conversions / clicks | indicates landing page + intent match |
| CPA | cost / conversion | your core efficiency metric for lead gen |
| ROAS | revenue / ad spend | your core efficiency metric for e-commerce |
A beginner priority order
- Tracking health: are conversions real?
- Conversion quality: are leads/orders good?
- Efficiency: CPA/ROAS vs target.
- Scale: add budget only after 1-3 are stable.
Simple diagnosis grid
| CTR | CVR | Likely issue | First fix |
|---|---|---|---|
| low | low | weak relevance + weak offer | message match (ad + landing page) |
| high | low | wrong traffic | keywords/match/negatives |
| low | high | underexposed | bids/budget/coverage |
| high | high | ready to scale | increase budget with guardrails |
Mini-lab
Pick one campaign and write:
- your primary KPI (CPA or ROAS)
- your current value (estimate if you must)
- one guardrail (max CPC, geo limit, schedule)
Next Step
Continue to Lab: Read the SERP Like an Ads Operator.