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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.

594 experiments
Winners, losers & inconclusive
Full statistical details
winner+10.5%

Signup: Right Or Left Aligned Forms

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

FormE-commercen=6,674
inconclusive

Listing: Priming Step

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

NavigationCross-Industryn=6,146
inconclusive

Checkout: Autodiscounting

Context: Coupon and promo code fields on checkouts can distract users — they leave to hunt for codes, reducing completion rates.

FormCross-Industryn=6,121
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
winner+7.5%

Pricing Page: Company Logos

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

Social ProofSaaSn=6,021
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
winner+21.5%

Landing Page: Paid Landing Pages

Problem: How "Paid landing pages" is implemented on the landing page can meaningfully affect conversion — this element is worth testing.

Social ProofEnergy & Utilitiesn=4,831
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-1.2%

Mobile: CTA Button Optimization

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

LayoutEnergy & Utilitiesn=4,412
inconclusive

Listing: Benefit Bar

Context: Users on the listing aren't seeing a clear enough reason to act — the benefits aren't standing out from the noise.

LayoutCross-Industryn=4,302
loser-18.9%

Landing Page: Grid vs List Layout

Problem: The information hierarchy on the landing page may not match how users actually scan and process the content.

LayoutEnergy & Utilitiesn=3,978
inconclusive-2.9%

Landing Page: Navigation - Promotion Feature

Context: Coupon and promo code fields on landing pages can distract users — they leave to hunt for codes, reducing completion rates.

CTAEnergy & Utilitiesn=3,879
winner+20.2%

Landing Page: Texas Grid Plan Builder

Problem: The information hierarchy on the landing page may not match how users actually scan and process the content.

LayoutEnergy & Utilitiesn=3,592
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
winner+8.5%

Shopping cart: Free Shipping

Problem: How prices are displayed on the shopping cart directly influences perceived value and willingness to buy.

PricingE-commercen=3,123
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
winner+10.4%

Homepage: Homepage Use Case

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

LayoutEnergy & Utilitiesn=2,694
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
loser-17.4%

Landing Page: Auto Pay Opt-In / Unlock

Problem: Multi-step processes on the landing page can overwhelm users if they can't see how far along they are or how much is left.

PricingEnergy & Utilitiesn=2,276

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