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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.

5 experiments
Winners, losers & inconclusive
Full statistical details
loser-13.5%

General: Ghost / Outline Buttons Lose to Filled Buttons

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

CTACross-Industry
loser-12.5%

Landing: Video Testimonials Mid-Page on Lead-Gen Forms

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

Social ProofCross-Industry
loser-12.5%

Landing: Social Counts Can Backfire on Lead-Gen Pages (-17.3%)

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

Social ProofCross-Industry
loser-9.0%

Homepage|landing: 'How It Works' Section Removal Hurt -4.6% to -11.7%

Problem: The registration experience on the homepage|landing asks too much too soon, causing potential users to drop off.

Copy & MessagingCross-Industry
loser-9.0%

Homepage: Screenshot Testimonials (Non-Authentic) Hurt Signups -9.7%

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

Social ProofCross-Industry

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