Digital marketing is crowded with acronyms. This clear, founder-friendly glossary breaks down the essential performance indicators you need to know to hold your marketing team or agency accountable.
1. Core Acquisition Metrics (ROAS, MER, CAC)
ROAS (Return on Ad Spend): Revenue generated directly divided by advertising spend for that specific campaign.
MER (Marketing Efficiency Ratio): Total business top-line revenue divided by total marketing spend. The single truest measure of company-wide leverage.
CAC (Customer Acquisition Cost): Total sales and marketing spend divided by the number of new customers acquired during a given period.
2. Tracking & Attribution (CAPI, GA4, Pixel)
Meta CAPI (Conversions API): Server-to-server data transmission that bypasses browser ad-blockers and privacy filters, delivering 20-30% more accurate event measurement.
GA4 (Google Analytics 4): Google's event-based measurement model for tracking cross-platform customer journeys.
3. Conversion Optimization (CRO, CTR, CVR)
CRO (Conversion Rate Optimization): The systematic discipline of increasing the percentage of site visitors who complete your primary call-to-action.
CTR (Click-Through Rate): Percentage of ad impressions that resulted in a visit to your destination page.
Satyam Kapoor
CEO & Founder, Novus Engage
Founder of Novus Engage, engineering high-converting creative pipelines, commercial video production, and paid acquisition funnels for growth brands.
