Lighthouse

Lighthouse is an open-source, automated tool for improving the quality of web pages. It audits web pages for performance, accessibility, progressive web apps (PWA), SEO, and best practices, providing actionable reports with scores and recommendations. It can be run from the command line, as a Node module, or directly in Chrome DevTools.

Also known as: Google Lighthouse, Lighthouse CI, Lighthouse CLI, Lighthouse Audit Tool, Web Performance Auditor

Why learn Lighthouse?

Developers should use Lighthouse to identify and fix issues that affect user experience, such as slow loading times, poor accessibility, or non-compliance with web standards. It is essential for optimizing websites for search engines, ensuring they work well on all devices, and meeting performance benchmarks, particularly in development and quality assurance phases.

Learning Resources

• docs: Lighthouse Documentation
• tutorial: Getting Started with Lighthouse
• docs: Lighthouse on GitHub
• docs: Lighthouse CI Guide
• tutorial: Web Performance with Lighthouse - FreeCodeCamp