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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.

65 experiments
Winners, losers & inconclusive
Full statistical details
winner

Home landing: UX Pattern Optimization

Problem: 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.

LayoutTravel
winner

Product: Product Page

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

LayoutE-commerce
winner

Listing: Listing Page

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

LayoutE-commerce
winner

Home landing: CTA Button 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: UX Pattern Optimization

Problem: How "Ux pattern optimization" is implemented on the home landing can meaningfully affect conversion — this element is worth testing.

LayoutTravel
winner

Product: Product Page — Product Quantity Options Receive A Confirmation From This A/B Test

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

LayoutE-commerce
winner

Product: Product Page

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

LayoutE-commerce
winner

Listing: Listing Page

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

LayoutE-commerce
winner

Product: Product Page

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

LayoutE-commerce
winner

Home landing: UX Pattern Optimization

Problem: How "Ux pattern optimization" is implemented on the home landing can meaningfully affect conversion — this element is worth testing.

LayoutTravel
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
winner

Listing: Listing Page

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

LayoutTravel
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

Product: Product Page

Problem: Users on the product don't feel confident enough to proceed — they need reassurance that their data and money are safe.

LayoutE-commerce
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
winner

Content Page: Maybe Later

Problem: How "Maybe later" is implemented on the content page can meaningfully affect conversion — this element is worth testing.

LayoutCross-Industry
winner

Product: Product Page

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

LayoutE-commerce
winner

Home landing: UX Pattern Optimization

Problem: How "Ux pattern optimization" is implemented on the home landing can meaningfully affect conversion — this element is worth testing.

LayoutE-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.

LayoutE-commerce
winner

Product: Product Page

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

LayoutE-commerce

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