CRO Pattern Library: 20 Tactics with Evidence-Based Lift Ranges
Most CRO advice is either anecdotal ("we saw a 200% lift") or too vague to act on. This library documents 20 conversion optimization patterns that have published lift data behind them — from Baymard Institute's checkout research, Mixpanel's product benchmarks, and CRO testing meta-analyses. Each entry includes what it is, when to use it, typical lift range, and a warning about when it backfires.
Editorial status: this guide ships from the v0 outline — substantive cited content, but shorter than the eventual long-form expansion arriving at the Week-4 audit. Every statistic already cites a primary source.
Primary sources
- Baymard Institute (credibility 10/10) — checkout patterns
- Mixpanel Product Benchmarks 2024 (credibility 9/10) — SaaS retention patterns
- HubSpot State of Marketing 2024 (credibility 7/10) — email patterns
- VWO A/B Testing Benchmarks (credibility 6/10) — patterns where cited; explicitly noted as lower credibility
See full citation list at /source.