Performance Over Vanity Metrics: CPA, LTV, and Direct Response Advertising Audits

Impressions and clicks are vanity metrics. Cost Per Acquisition against Customer Lifetime Value is the only dashboard that matters. A campaign generating 10,000 clicks at 0.3% conversion is a failure — even if the agency report highlights "record traffic."

CPA Optimization Framework

Target CPA = (Average Deal Value × Gross Margin × Close Rate) × 0.33. For a R85,000 contract at 40% margin and 25% close rate, maximum sustainable CPA is approximately R2,800. Any campaign exceeding this is subsidizing Google's revenue, not yours.

The 5–8% Conversion Baseline

Elite Next.js architecture targets 5–8% landing page conversion for qualified traffic. Legacy CMS sites average below 3%. The difference is not copy — it is render speed, trust signals, form UX, and zero layout shift. Without the infrastructure, no amount of ad spend fixes unit economics.

Audit Your Agency Report

• Demand CPA and ROAS — not CTR and impressions
• Require conversion value tracking, not conversion count alone
• Segment by campaign intent: brand vs commercial vs competitor
• Compare blended CPL against SEO content CPL monthly

SA CPC benchmarks · Request account audit