Landing Page Optimization Experiment: Final Report

10-Week Randomized Controlled Trial (2026-06-01 to 2026-08-09) • 8 Variants • 1.83M Visitors

✓ Complete Sample Confidence: 99.9% N = 1,833,268
★

Executive Decision: Roll Out Variant F

Variant F is the definitive winner. It generated a statistically significant +22.3% lift in total purchases over Baseline A (p < 0.0001). Over 10 weeks, Variant F drove 932 incremental completed orders with no drop-off in down-funnel qualification. Recommend 100% rollout.

+22.3%
Purchase Lift (p < 10⁻¹⁰)
Total Visitors Tested
1,833,268
~229K per variant (perfect 1:1 split)
Baseline Conversion (A)
1.82%
4,179 orders / 229,103 visitors
Winning Conversion (F)
2.23%
5,111 orders / 228,784 visitors
Incremental Impact of F
+932 Orders
+$65K–$95K est. revenue / 10 wks

Complete Full-Funnel Performance Scorecard

Comparison of all 8 candidates from landing to completed purchase.

Winner: F Clickbait Trap: C
Variant Status Visitors Primary Clicks (CTR) Add-to-Cart (Rate) Purchases End-to-End Conv. Lift vs Baseline (A) Stat. Significance

End-to-End Purchase Conversion Rate

The primary business metric (Purchases ÷ Total Visitors)

The "Clickbait" Trap: Variant C vs Variant F

Why CTR alone is a deceptive proxy for business value

Stage-by-Stage Funnel Conversion Rates

Where prospects drop off for Baseline (A), Trap (C), and Winner (F)

Baseline (Variant A)

1. Landing → CTA Click
35.1%
2. Click → Add-to-Cart
15.1%
3. Cart → Purchase Complete
34.4%

Variant C (The Trap: High Clicks, Weak Intent)

1. Landing → CTA Click
48.7% (+38.7%)
2. Click → Add-to-Cart
14.9% (-1.3%)
3. Cart → Purchase Complete
24.5% (-28.8% collapse)

Variant F (The True Winner: Balanced Full Funnel)

1. Landing → CTA Click
38.2% (+8.8%)
2. Click → Add-to-Cart
16.3% (+7.9%)
3. Cart → Purchase Complete
35.7% (+3.8%)

70-Day Performance Stability (Weekly Rolling Purchases)

Variant F dominated baseline consistently across all 10 weeks

Data Insights & Behavioral Findings

What the visitor behavior reveals about customer intent and page design

1. Variant F succeeded by driving Qualified Intent, not just curiosity

Unlike redesigns that used aggressive clickbait buttons, Variant F increased CTA clicks moderately (+8.8%), but critically, those visitors maintained higher add-to-cart rates (+7.9%) and completed purchases at the highest rate in the test (35.7% cart-to-purchase). This proves that Variant F's copy and layout set transparent, accurate product expectations upfront.

2. Variant C is a textbook "False Positive / Clickbait" Trap

Variant C generated a staggering 112,028 clicks (48.7% CTR) and 16,680 cart additions. If the product team had evaluated this test on CTR or Cart Adds, C would have seemed like an astronomical triumph. However, at checkout, conversion plummeted by nearly 29%. Variant C ended with 4,082 purchases (1.78%), which is actually worse than our existing control page A (4,179 purchases / 1.82%). Optimizing for early-funnel clicks cannibalized buyer trust.

3. Summary of other candidates:

Variants B, D, and G performed essentially identical to Baseline A (all within ±1.5% lift, none statistically significant). Variant E suppressed top-of-funnel engagement (-13.5% CTR) due to low-contrast or misplaced CTA. Variant H was deeply counterproductive (-14.7% total purchases, p < 0.0001), indicating confusing layout or friction.

Strategic Action Plan & Next Steps

Immediate operational steps for product, design, and engineering

1

Promote Variant F to 100% Traffic Production Immediately

Variant F is thoroughly de-risked across 228,784 visitors and 70 consecutive days. Phasing out A through H and serving F to all traffic will capture an estimated ~4,800 incremental orders annually on current run-rates.

2

Deconstruct the "C vs F" Mechanism in Design Review

Have the UX/copywriting team conduct a side-by-side audit of C and F. Variant C possessed an exceptional hook (generating ~31,000 extra clicks) while Variant F possessed superior qualification and checkout follow-through. Our next hypothesis: test whether F's layout with C's headline framing can yield an even stronger hybrid page.

3

Retire and Archive Variations B, D, E, G, and H

Variant H and E introduced measurable conversion blockers; their copy/layout patterns should be documented in the design system as anti-patterns to avoid in future iterations.

4

Institute Full-Funnel Guardrails for Future A/B Tests

This experiment highlighted the critical risk of judging tests on micro-metrics like CTA clicks. Enforce a company-wide analytics guideline: no landing page experiment may graduate without statistical significance on verified down-funnel orders or revenue.