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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.

212 experiments
Winners, losers & inconclusive
Full statistical details
inconclusive

Listing: Out Of Stock Or In Stock Products

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

Product: UX Pattern Optimization

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

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

Product: Cart Reminder And Recently Viewed

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

LayoutCross-Industry
inconclusive

General: Product Size References

Context: Visual emphasis on the general may not be drawing attention to the right elements — size, color, and contrast guide the eye.

LayoutCross-Industry
inconclusive

Listing: Product Availability

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

Listing: List Or Grid View

Context: The information hierarchy on the listing may not match how users actually scan and process the content.

LayoutCross-Industry
inconclusive

Checkout: Checkout Flow Simplification

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

LayoutCross-Industry
winner+5.3%

Checkout: Multiple Steps

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

LayoutCross-Industry
inconclusive

Home landing: Full Height False Bottom

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.

LayoutCross-Industry
inconclusive

Product: Least Or Most Expensive First

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

LayoutCross-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: Product Highlights

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

Home landing: Example Situations

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.

LayoutCross-Industry
inconclusive

Checkout: Complementary Upsell

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

LayoutCross-Industry
inconclusive

Content Page: Maybe Later on Content Page

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

LayoutCross-Industry
inconclusive

Product: Zigzag Layout

Context: The information hierarchy on the product may not match how users actually scan and process the content.

LayoutCross-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
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

Home landing: UX Pattern Optimization

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

LayoutE-commerce

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