Google Lighthouse is website auditing tool for improving the performance, quality, and correctness of your web apps. When auditing a page, Lighthouse runs a barrage of tests against the page, and then generates a report on how well the page did. From here you can use the failing tests as indicators on what you can do to improve your app.

Some areas it runs tests on are:

• Accessibility
• Performance
• Best practices for security
• SEO

Google Lighthouse Chrome plugin

Run Lighthouse’s audits through Google’s web.dev portal