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Cross-browser web performance testing CLI and library built on Playwright; collects HAR, Web Vitals, resource timing, console logs, screenshots, and filmstrip across Chrome, Firefox, Safari, and Edge.

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Web Performance Optimization
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2026-10-10
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Web Performance Optimization › Metrics Monitor: “Cross-browser web performance testing CLI and library built on Playwright; collects HAR, Web Vitals, resource timing, console logs, screenshots, and filmstrip across Chrome, Firefox, Safari, and Edge.”