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What Is Browser Performance Testing?

Browser performance testing is a pipeline check that loads a page in a headless browser and records front-end performance metrics such as load time and rendering speed. It compares the results to a baseline to flag regressions. It brings web performance into the same automated gate as tests and security scans.

Why it matters

Front-end performance degrades gradually as features pile up, and manual checks miss it. Measuring key metrics per change surfaces a regression while it is still cheap to fix. Tracking against a baseline keeps performance a first-class, enforceable concern in the pipeline.

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