Lighthouse
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What is Lighthouse?
Lighthouse is an open-source, automated tool for improving the quality of web pages. You can run it against any web page, public or requiring authentication. It has audits for performance, accessibility, progressive web apps, SEO, and more. You can run Lighthouse in Chrome DevTools, from the command line, or as a Node module. You give Lighthouse a URL to audit, run a series of audits against the page, and then generate a report on how well the page did. From there, use the failing audits as indicators on how to improve the page. Each audit has a reference doc explaining why the audit is important and how to fix it.
Free resources to learn Lighthouse
More in stage 12: Testing Data Management
Lighthouse: common questions
Can I learn Lighthouse in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Lighthouse in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Lighthouse tutorial for beginners?
It is lesson 98 of 146 in the free QA roadmap, in stage 12, Testing Data Management. If you are new to QA, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.