cro-optimization

1# CRO Optimization
2 
3Run conversion rate optimization as a structured discipline: audit → hypothesize → test → decide. Stack-agnostic. Tool-agnostic.
4 
5This skill is for running tests against existing pages and flows. For writing landing page copy from scratch, use `landing-page-copy`. For setting up the analytics that make CRO possible, use `analytics-strategy`.
6 
7---
8 
9## When to use
10 
11- Converting traffic at lower rate than expected
12- Specific funnel step has high drop-off
13- Pages with high traffic that could move the needle if optimized
14- A/B testing infrastructure exists (or can be set up)
15- Statistical significance and sample size questions
16 
17## When NOT to use
18 
19- Without sufficient traffic to test (under ~5,000 monthly conversions per variant)
20- Pre-launch (no users to test on yet)
21- Strategy or messaging-level questions that need qualitative research first
22- Brand-defining choices (CRO can't optimize a fundamentally wrong brand)
23 
24---
25 
26## Required inputs
27 
28- The page or flow under optimization
29- Current conversion rate and traffic volume
30- Access to analytics (event tracking, funnel data)
31- An A/B testing tool (or willingness to set one up)
32- Time and budget for testing (typically 2 to 8 weeks per test)
33 
34---
35 
36## The framework: 4 phases
37 
38### 1. Audit
39 
40Diagnose before treating.
41 
42**Quantitative audit:**
43 
44- **Funnel data.** Where are users dropping off? The biggest drop is the biggest opportunity.
45…