News, tutorials and best practices for visual testing
Hard numbers: at the default setting, comparing two screenshots pixel by pixel lets 3 real visual changes slip through out of 5. Why comparing element by element changes everything.
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A/B testing creates visual variants, but who checks that each variant renders correctly? Discover why visual testing is essential to secure your experiments without breaking the UX.
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Where does visual testing fit in the testing pyramid? Nowhere — it's orthogonal. Discover why visual testing is an independent dimension that cuts across all levels.
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Storybook has become the standard for documenting and testing UI components. But for visual testing, testing isolated components is not enough. Learn how to combine Storybook with full-page visual testing for real coverage.
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How to do visual testing with Selenium? Discover the approaches (screenshots, plugins, Applitools), their limitations, and why visual testing deserves a dedicated tool.
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A Bootstrap, Tailwind, or Material UI update can break your rendering without touching your code. Discover how visual testing protects your interface after every npm update.
Read more →A CSS regression is an unintentional change in a website's appearance after a code modification. Discover why they're invisible in a text diff and how to detect them effectively.
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How a QA manager can introduce visual testing in their team, convince leadership, overcome resistance to change, train testers, and measure success. A practical guide to increase your QA team's value.
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Visual bugs in production cost user trust and debugging time. Here are 7 concrete strategies to prevent them systematically, from CI/CD to production monitoring.
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