Guides conversion rate optimization (CRO): increasing the percentage of visitors who complete desired actions. Higher conversion rates mean increased revenue, reduced CAC, and better ROI. Use this skill when optimizing funnels, running experiments, or reducing friction on high-traffic pages.
When invoking: On first use, if helpful, open with 1–2 sentences on what this skill covers and why it matters, then provide the main output. On subsequent use or when the user asks to skip, go directly to the main output.
Check for project context first: If .claude/project-context.md or .cursor/project-context.md exists, read Sections 4 (Audience), 5 (Website), 6 (Keywords).
Identify:
StepAction1. ResearchMap funnel; identify high-traffic, low-conversion pages2. HypothesizeForm testable hypothesis (if X, then Y because Z)3. PrioritizeScore by Potential, Importance, Ease (PIE)4. TestA/B or multivariate; adequate sample size5. AnalyzeStatistical significance; implement winner
Score each test idea 1–10:
FactorQuestionPotentialHow much improvement is possible?ImportanceHow much traffic does this page get?EaseHow easy to implement?
Rank backlog by total score; run highest-impact tests first.
PracticeGuidelineSample sizeCalculate minimum before launch; 95% significance without adequate sample = false positivesDurationRun full week cycles; account for day-of-week effectsOne variableTest one element per experiment (or use MVT for multiple)Mobile separateMobile converts ~50% of desktop; test mobile independently—thumb reach, form complexity differLow trafficUse Bayesian testing for faster, actionable results
Page TypeTest IdeasHomepageSearch bar prominence; personalized content; hero CTA; social proof placementLanding pageHeadline; form length; CTA copy; above-fold layoutProduct/CategoryQuick view; descriptions; add-to-cart placementCheckoutForm fields; progress indicator; trust badges; guest checkoutPricingPlan order; anchoring; CTA per tier
Personalization: Personalized experiences generate ~41% more impact than generic ones.
ModulePurposeData & BIData warehouse; user behavior events; agile surveysA/B testingExperiment platform; statistical significance; backend-controlled variantsUser educationHelp docs (multi-language); update notifications; EDMAttributionAd pixels; attribution model; impression-to-click-to-sale tracking
Avoid: Intrusive interstitials; popups that block content. Prefer non-intrusive ad formats.