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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.

37 experiments
Winners, losers & inconclusive
Full statistical details
winner+12.5%

Homepage: Visible Search Bar + Personalized Signup Funnel

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

NavigationCross-Industry
winner+12.5%

Homepage: Product Category Links on Homepage

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

NavigationE-commerce
winner+20.0%

Homepage: Transparent Pricing in Hero Headline

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

PricingFintech
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%

Homepage: Cart Resume for Returning Drop-Off Users

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

PersonalizationE-commerce
winner+3.0%

Homepage: Recently Viewed Products for Returning Users

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

PersonalizationE-commerce
winner

Restructuring Homepage Hierarchy to Surface Personalized Offers

The story behind this win is the iteration discipline. The first attempt at this homepage redesign changed two systems at once (messaging + routing) and produced an ambiguous result: the entry metric moved slightly positive while downstream metrics moved meaningfully negative. The team correctly identified that the routing change — which inadvertently replaced direct links to a personalized plan-search experience with modal-driven entry into a generic flow — was the downstream killer. The iteration restored the original routing and kept ONLY the homepage hierarchy changes. All funnel metrics moved directionally positive in lockstep (entry +2.38%, mid-funnel +7%, conversion +11.81%) — none stat-sig individually but consistent enough across the funnel to justify shipping. Element-level diagnostics confirmed the mechanism: the segment CTAs the team intended to promote saw a 26-30% lift in unique-visitor interaction, while the unchanged hero banner stayed flat (as expected). Two key behavioral observations: (1) page-length reduction surfaced a 4x lift on a previously buried bottom-of-page zip code input — proving the secondary lesson that 'less page' can mean 'more conversion real estate'; (2) desktop strongly outperformed mobile, with the suspected cause being mobile's lead-with-form pattern (zip code above hero) — putting the form before the message creates friction. The broader transferable insight: when a messy test confounds multiple variables, the right move is to isolate one variable in the next test, not to abandon the hypothesis.

LayoutEnergy & Utilities
winner+64.0%

Homepage: Explainer Video on Homepage

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

LayoutSaaS
winner+44.0%

Homepage: Social Proof Header (600K Facebook Fans)

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

Social ProofE-commerce
winner+75.0%

Homepage: Navigation Redesign Around Visitor Problems

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

NavigationSaaS
winner+12.0%

Homepage: Examples Page in Global Nav

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

NavigationSaaS
winner+45.5%

Homepage: Homepage Landing Page Move

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

LayoutFintech
winner+350.0%

Homepage: Visitor Segmentation by User Type

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

PersonalizationE-commerce
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+10.0%

Homepage: Homepage Hero Carousel Removal

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

LayoutFintech
winner+45.0%

Homepage: Homepage Redesign: Shorter Scroll + Trust Logos + Benefits Section

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

LayoutCross-Industry
winner+45.0%

Homepage: Full Homepage Redesign (Split URL)

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

LayoutCross-Industry
winner+40.0%

Homepage: Mobile Homepage Redesign: Value Prop + Pricing in Hero + FAQ

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

LayoutCross-Industry
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+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

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