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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.

162 experiments
Winners, losers & inconclusive
Full statistical details
winner

Home landing: Homepage — 4 Button Labels With "Try It Now" Possibly Leading

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

FormSaaS
winner

Home landing: Layout Optimization

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

LayoutTravel
winner

Home landing: Homepage — All These Tested Homepage Variations - Perhaps This One Will Help?

Problem: Product recommendations on the home landing either help users find what they need or add noise that distracts from the primary purchase.

LayoutSaaS
winner

Home landing: Search UX Enhancement

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

FormTravel
winner

Home landing: Search UX Enhancement

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

LayoutTravel
winner+52.5%

Landing Page: Long-Form Landing Page

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

Copy & MessagingSaaS
winner+78.5%

Landing Page: Mobile Landing Page Redesign

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

LayoutFintech
winner+157.5%

Landing Page: Pre-Price Sales Letter Page

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

LayoutSaaS
winner+61.0%

Landing Page: Landing Page with Future-Pacing + Trust Elements

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

Copy & MessagingSaaS
winner+80.0%

Landing Page: App Onboarding Simplification

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

FormMedia
winner+51.0%

Landing Page: Donation Progress Bar with Target

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

Social ProofNonprofit
inconclusive

Landing Page: Social Proof at Checkout Increases Orders; Social Proof at Top of Funnel Hurts

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

Social ProofFintech
inconclusive+0.7%

Landing Page: Sitewide CTA

Context: 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=434,312
winner+4.4%

Landing Page: Headline & Copy Test

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

Mobile UXEnergy & Utilitiesn=75,511
winner+2.2%

Landing Page: Star Ratings

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

Social ProofEnergy & Utilitiesn=71,171
inconclusive-1.4%

Landing Page: CTA Button Optimization

Context: 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=65,689
inconclusive+1.8%

Landing Page: CTA Optimization

Context: 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=56,158
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
winner+4.1%

Landing Page: Grid Page Testimonials

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

Social ProofEnergy & Utilitiesn=50,156
winner+7.2%

Landing Page: Layout Optimization

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

LayoutEnergy & Utilitiesn=39,352

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