Conversion Rate Optimization Data Audit

Conduct a systematic data audit of your conversion funnel to identify drop-off points, statistical significance of tests, and data-driven recommendations for improving conversion rates.

Prompt Template

You are a CRO data analyst. Conduct a thorough conversion rate optimization data audit for my product.

**Product Details:**
- Product type: [e.g., B2B SaaS with free trial]
- Current conversion rate: [e.g., 2.3% visitor-to-trial, 18% trial-to-paid]
- Monthly traffic: [e.g., 45,000 unique visitors]
- Analytics tools: [e.g., Google Analytics 4, Mixpanel, Hotjar]

**Funnel Steps:**
[List your funnel stages with approximate conversion rates, e.g.:
1. Landing page → Sign-up page: 12%
2. Sign-up page → Account created: 45%
3. Account created → Onboarding complete: 60%
4. Onboarding complete → First value moment: 35%
5. First value moment → Paid conversion: 52%]

**Available Data:**
[e.g., 6 months of GA4 data, heatmaps for top 5 pages, 3 completed A/B tests]

Please provide:
1. **Funnel health scorecard** — Rate each step against industry benchmarks (green/yellow/red)
2. **Biggest leak identification** — Calculate where the most absolute conversions are lost
3. **Statistical analysis framework** — Sample size calculator for your traffic, minimum detectable effect, and test duration estimates
4. **Data quality checklist** — 15-point audit to verify tracking accuracy
5. **Segmentation analysis plan** — Key segments to break down (device, source, cohort, geography)
6. **Quick wins list** — 5 high-impact, low-effort fixes based on funnel shape
7. **Test prioritization matrix** — ICE-scored backlog of 10 A/B test ideas
8. **Reporting dashboard spec** — What metrics to track weekly, monthly, and quarterly

Example Output

# CRO Data Audit Report

1. Funnel Health Scorecard

| Step | Your Rate | Benchmark | Status | Gap |

|------|-----------|-----------|--------|-----|

| Landing → Sign-up | 12% | 8-15% | 🟢 Healthy | At median |

| Sign-up → Account | 45% | 50-65% | 🔴 Critical | -5 to -20pp |

| Account → Onboarding | 60% | 55-70% | 🟢 Healthy | At median |

| Onboarding → Value | 35% | 40-55% | 🟡 Needs work | -5 to -20pp |

| Value → Paid | 52% | 35-50% | 🟢 Strong | Above median |

2. Biggest Leak: Sign-up → Account Created

Impact calculation:

- 45,000 visitors × 12% = 5,400 reach sign-up page

- 5,400 × 45% = 2,430 create accounts

- If improved to benchmark 55%: 5,400 × 55% = 2,970 accounts

- **540 additional accounts/month** → cascading to ~100 additional paid conversions

- At $100/mo ARPU = **$10,000/mo revenue impact**

4. Data Quality Checklist

- [ ] GA4 events firing on all funnel pages (check with Tag Assistant)

- [ ] No duplicate event triggers (check event count vs. page views)

- [ ] Cross-domain tracking configured if funnel spans domains

- [ ] Bot traffic filtered (check for >5% sessions with 0s duration)

- [ ] UTM parameters preserved through redirect chains

...

7. Test Prioritization Matrix

| # | Test Idea | Impact | Confidence | Ease | ICE Score |

|---|-----------|--------|------------|------|----------|

| 1 | Simplify sign-up to email-only (remove name field) | 9 | 8 | 9 | 26 |

| 2 | Add social proof to sign-up page | 8 | 7 | 8 | 23 |

| 3 | Reduce onboarding from 5 to 3 steps | 8 | 6 | 5 | 19 |

Tips for Best Results

  • 💡Always calculate absolute numbers, not just percentages — a 10% improvement on a 2% step matters less than 5% on a 50% step
  • 💡Verify your tracking before analyzing — bad data leads to confident wrong decisions. Run a data quality audit first
  • 💡Segment by device type first — mobile vs desktop conversion gaps are often the single biggest CRO opportunity
  • 💡Don't run A/B tests with less than 1,000 conversions per variant — underpowered tests produce false positives
  • 💡Focus on the step with the biggest absolute drop-off, not the lowest percentage — that's where revenue impact lives