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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.

64 experiments
Winners, losers & inconclusive
Full statistical details
inconclusive

Checkout: Back Buttons

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

CTACross-Industry
inconclusive

Checkout: Frequently Asked Questions

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

LayoutCross-Industry
inconclusive

Checkout: Field Explanations

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

FormCross-Industry
inconclusive

Checkout: Less Or More Visible Prices

Context: How prices are displayed on the checkout directly influences perceived value and willingness to buy.

PricingCross-Industry
inconclusive

Checkout: Pricing Comparison Table

Context: How prices are displayed on the checkout directly influences perceived value and willingness to buy.

PricingCross-Industry
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-Industry
inconclusive

Checkout: Confirmed Selection

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

LayoutCross-Industry
inconclusive

Checkout: Standard Or Superscript Price Format

Context: How prices are displayed on the checkout directly influences perceived value and willingness to buy.

FormCross-Industry
inconclusive

Checkout: Optional or Confident Recommendation

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

LayoutCross-Industry
inconclusive+10.0%

Checkout: Native DTC Deodorant: Cross-Sell Placement in Checkout Drives $1.5M Revenue Lift

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

PricingE-commerce
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-Industry
inconclusive

Checkout: Testimonials

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

Social ProofCross-Industry
inconclusive

Checkout: Top Aligned Labels

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

FormCross-Industry
inconclusive

Checkout: Customer Star Ratings

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

Social ProofCross-Industry
inconclusive

Checkout: Centered Forms & Buttons

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

FormCross-Industry
inconclusive

Checkout: Checkout Flow Simplification

Context: Users can't quickly find relevant products or content on the checkout, leading to frustration and early exits.

NavigationCross-Industryn=206,500
inconclusive

Checkout: Standard Or Superscript Price Format

Context: How prices are displayed on the checkout directly influences perceived value and willingness to buy.

PricingCross-Industryn=175,677
inconclusive

Checkout: Optional or Confident Recommendation

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

PricingCross-Industryn=58,597
inconclusive

Checkout: Urgent Next Day Delivery

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

Copy & MessagingCross-Industryn=40,999
inconclusive

Checkout: Progress Bar

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

NavigationCross-Industryn=37,683

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