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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.

275 experiments
Winners, losers & inconclusive
Full statistical details
winner+4.0%

Checkout: Sticky Call To Action

Problem: Key actions on the checkout disappear as users scroll, creating a gap between intent and the ability to act.

CTACross-Industry
inconclusive

Product: Welcome Mat - Partial

Context: Capturing visitor attention on the product with modals or overlays is a balance between engagement and annoyance.

LayoutCross-Industry
inconclusive

Product: More For Less Headline

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

Copy & MessagingCross-Industry
inconclusive

Product: Visible Availability

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

LayoutCross-Industry
inconclusive

Checkout: Bulleted Reassurances

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

TrustCross-Industry
inconclusive

Product: Postponed Modal Forms

Context: Capturing visitor attention on the product with modals or overlays is a balance between engagement and annoyance.

FormCross-Industry
inconclusive

Product: More Or Fewer Plans on Product Page

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

PricingCross-Industry
inconclusive

Listing: Nagging Results

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

LayoutCross-Industry
inconclusive

Shopping cart: What It's Worth

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

PricingCross-Industry
inconclusive

Signup: Payment First

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

PricingCross-Industry
inconclusive

Product: Gradual Reassurance

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

TrustCross-Industry
winner+2.1%

Product: Social Counts

Problem: The registration experience on the product asks too much too soon, causing potential users to drop off.

Social ProofCross-Industry
inconclusive

Home landing: Natural Language Forms

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

FormCross-Industry
winner

Checkout: Remove Coupon Fields

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

FormCross-Industry
winner+9.0%

Listing: Icon Labels

Problem: Visual elements on the listing aren't doing enough to communicate value, build trust, or guide users toward the next step.

FormCross-Industry
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

Home landing: Visible Search

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

NavigationCross-Industry

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