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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.

41 experiments
Winners, losers & inconclusive
Full statistical details
winner+20.0%

Homepage: Black Friday UX Optimization

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

LayoutCross-Industry
winner+22.5%

Landing: Credit Card Application Page Optimization

Problem: How "Credit card application page optimization" is implemented on the landing can meaningfully affect conversion — this element is worth testing.

FormCross-Industry
winner+100.0%

Homepage: Above-the-Fold CTA Placement

Problem: The first screen of the homepage must immediately communicate value — if it doesn't, users bounce before scrolling.

CTACross-Industry
winner+100.0%

Homepage: Welcome Mat / Partial Interstitial

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

CTACross-Industry
winner+55.0%

Homepage: Action-Oriented Navigation Label

Problem: Users arriving at the homepage can't efficiently find what they're looking for, increasing bounce rates.

NavigationCross-Industry
winner+40.0%

Homepage: Bigger CTA Button in Navigation

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

CTACross-Industry
winner+32.5%

Homepage|landing: Sticky CTA Bar

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

CTACross-Industry
winner+16.5%

Homepage: Repeated Bottom CTA on Long Pages

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

CTACross-Industry
winner+30.0%

Landing: Multi-Step Form (Gradual Reassurance)

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

FormCross-Industry
winner+27.5%

Homepage: CTA Button Optimization

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

FormCross-Industry
winner+9.0%

Homepage: Form Field Reduction (Postpone Fields to Next Step)

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

FormCross-Industry
winner+17.5%

Homepage: Replacing Static with Interactive Integration Logos

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

Social ProofCross-Industry
winner+20.0%

Landing: Social Counts (Activity Numbers) on Service Platforms

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

Social ProofCross-Industry
winner+14.0%

Homepage: Customer Review Badges Replacing Video Component

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

Social ProofCross-Industry
winner+6.5%

Homepage: G2 / Third-Party Award Badges

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

Social ProofCross-Industry
winner+14.0%

Landing: Use Case Examples / Example Situations

Problem: How "Use case examples / example situations" is implemented on the landing can meaningfully affect conversion — this element is worth testing.

Copy & MessagingCross-Industry
winner+20.0%

Homepage: Static Images Replace Auto-Playing Carousel

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

LayoutCross-Industry
winner+16.5%

Landing: Remove Navigation from Landing Pages (Tunnel)

Problem: Users arriving at the landing can't efficiently find what they're looking for, increasing bounce rates.

NavigationCross-Industry
winner+20.0%

Homepage: Push Users to Pricing Page Earlier

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

PricingCross-Industry
winner+10.0%

Landing: Dynamic Social Proof + Scarcity on Enrollment Page

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

Social ProofCross-Industry

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