
MER vs ROAS vs Margin: Which Metric Should Guide Google Ads?
MER, ROAS, and margin answer different Google Ads questions. Scaling decisions need all three in the right order.
Etavrian blog
Practical guidance on SEO, paid media, AI search and measurement.
Read the latest articleLatest notes

MER, ROAS, and margin answer different Google Ads questions. Scaling decisions need all three in the right order.

A prioritization method for deciding whether SEO, Google Ads, CRO, or AI SEO should get the next focused sprint.

A 30/60/90-day e-commerce growth plan structure that starts with evidence, fixes leakage, then scales what can hold margin.
A tracking quality checklist for deciding whether marketing data is ready to guide spend, SEO, CRO, and growth priorities.

A pre-scale paid media checklist for avoiding budget increases before tracking, margin, campaigns, and landing pages are ready.
Compare Google AI Mode and AI Overviews for B2B SEO, including queries, clicks, content, measurement, and practical checks.
A practical decision guide for choosing SEO, Google Ads, or both based on speed, budget, search demand, tracking, and pipeline quality.