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Why is Lighthouse useful for performance audits?

Asked on Nov 07, 2025

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Lighthouse is a valuable tool for performance audits because it provides automated insights into web page performance, accessibility, SEO, and best practices. It generates detailed reports that help developers identify and fix issues affecting a site's speed and user experience, making it an essential tool for optimizing web applications.

Example Concept: Lighthouse analyzes web pages by simulating a user visit and measuring various performance metrics such as load times, interactivity, and visual stability. It provides a score for each category and actionable recommendations to improve these metrics, helping developers enhance the overall quality and efficiency of their web applications.

Additional Comment:
  • Lighthouse can be run from Chrome DevTools, the command line, or as a Node module.
  • It evaluates pages on both mobile and desktop devices, ensuring broad performance coverage.
  • The tool helps identify render-blocking resources, unused CSS, and large JavaScript payloads.
  • Regular audits with Lighthouse can track performance improvements over time.
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