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, it runs a series of audits against the page, and then it generates 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, as well as how to fix it.

You can also use Lighthouse CI to prevent regressions on your sites.

Getting Started

Follow instruction found from Google Developer site: Getting Started

PWA check

You will use Lighthouse in this course to check that your PWA is fully working and configured correctly. You will learn more in with PWA exercises.