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The A/B Test Library

Real experiments. Real outcomes. Actionable patterns. Browse A/B tests with problem-to-solution framing, results, and recommendations for what to test next.

76 experiments
Winners, losers & inconclusive
Full statistical details
inconclusive

Checkout: Complementary Upsell

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

PricingCross-Industryn=6,079
loser-3.3%

Checkout: We're Holding Your Rate Urgency

Problem: Without clear urgency signals, users delay their decision on the checkout, leading to drop-offs and abandoned sessions.

Copy & MessagingEnergy & Utilitiesn=5,750
inconclusive

Checkout: Auto Suggest

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

PersonalizationCross-Industryn=4,735
inconclusive

Checkout: Testimonials

Context: Users on the checkout need validation from others before committing — without visible proof of success, they hesitate.

Social ProofCross-Industryn=3,333
inconclusive

Checkout: Layout Optimization

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

LayoutEnergy & Utilitiesn=3,144
loser-7.3%

Checkout: Layout Optimization

Problem: Friction during the checkout process causes users to abandon right when they're closest to converting.

LayoutEnergy & Utilitiesn=3,009
inconclusive

Checkout: Fewer Form Fields

Context: Each additional form field adds friction to the checkout, increasing the chance users abandon before completing their submission.

FormCross-Industryn=2,286
inconclusive

Checkout: Single Or Double Column Form Fields

Context: Each additional form field adds friction to the checkout, increasing the chance users abandon before completing their submission.

FormCross-Industryn=2,143
inconclusive

Checkout: Floating Labels

Context: Each additional form field adds friction to the checkout, increasing the chance users abandon before completing their submission.

FormCross-Industryn=2,073
inconclusive

Checkout: Headline & Copy Test

Context: The headline on the checkout may not resonate with what users actually care about or address their top objections.

PricingCross-Industryn=2,052
inconclusive

Checkout: Currency & Taxes

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

PricingCross-Industryn=1,702
inconclusive+0.9%

Checkout: Step 4 - Authorization Clarity and Prominence

Context: The primary call-to-action on the checkout isn't converting at its potential — design, copy, or placement may be the bottleneck.

CTAEnergy & Utilitiesn=1,174
inconclusive

Checkout: Checkout - Deposit

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

LayoutEnergy & Utilitiesn=0
inconclusive

Checkout: New Checkout Experience

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

LayoutEnergy & Utilitiesn=0
inconclusive

Checkout: Mobile Checkout

Context: Mobile users experience the checkout differently — smaller screens, touch targets, and limited attention require purpose-built design.

LayoutEnergy & Utilitiesn=0
inconclusive

Checkout: Checkout Page

Context: Friction during the checkout process causes users to abandon right when they're closest to converting.

LayoutEnergy & Utilitiesn=0

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