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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.

3 experiments
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loser

Does a 90-Day Plan-Change Guarantee Badge Increase Click-Throughs?

Ambiguity > absence. A vague benefit callout can create more friction than no callout at all: visitor diagnostics showed users were drawn in by the badge (time-on-page up, bounce rate down) but exit rate rose and FAQ-section attractiveness spiked — a signature of users searching for answers and not finding them. The same concept won at a sister brand whose variant used descriptive benefit-framed copy ("we'll help you find the right plan if this isn't a fit"); the variant in this test used short labelled-badge copy that raised more questions than it answered. The lesson is not that benefit guarantees fail — it's that surfacing one with insufficient context can backfire by introducing uncertainty the page doesn't resolve.

Copy & MessagingEnergy & Utilities
loser

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.

Copy & MessagingE-commerce
loser

Product: Product Page — Smaller & Shorter Product Titles

Problem: How "Product page — smaller & shorter product titles" is implemented on the product can meaningfully affect conversion — this element is worth testing.

Copy & MessagingE-commerce

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