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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.

22 experiments
Winners, losers & inconclusive
Full statistical details
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+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+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+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
winner

Checkout: Filled Or Ghost Buttons

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

CTACross-Industry
winner

Product: Product Page

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

CTAE-commerce
winner

General: CTA Button Optimization

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

CTAE-commerce
winner

Product: CTA Button Optimization

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

CTAE-commerce
winner

Product: Product Page

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

CTATravel
winner

Product: Product Page

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

CTAE-commerce
winner

Product: CTA Button Optimization

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

CTAE-commerce
winner

Product: Product Page

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

CTAE-commerce
winner

Signup: CTA Button Optimization

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

CTATravel
winner+11.5%

Homepage: Navigation CTA 'Latest Stock Picks'

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

CTAFintech
winner+24.0%

Pricing Page: Softer CTA Copy 'Select Plan' vs 'Order Now'

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

CTAEnergy & Utilities
winner+80.0%

Homepage: Distinct CTA Color + First Fold Placement

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

CTACross-Industry
winner+25.0%

Landing: Pop-up Demo Request Form on High-Intent Page

Problem: How "Pop-up demo request form on high-intent page" is implemented on the landing can meaningfully affect conversion — this element is worth testing.

CTACross-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+5.6%

Landing Page: Plan Page Zip Modal CTA Copy

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

CTAEnergy & Utilitiesn=50,404

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