Lighthouse is an open-source, automated tool for improving the quality of web pages mainly(Performance, Accessibility Best Practices, progressive web apps and SEO). It can be easily used from a public URL or from local url in chrome dev tools which requires authentication.
Using Lighthouse is a must if you are serious about your web pages Performance, Accessibility Best Practices, progressive web apps and SEO.
Lighthouse testing can be performed through
- Chrome Dev Tools
- Command Line
- Node Module
It performs audit against you page and generates an report output. You can use the failing points and improve upon them. A lot of points are to do with basic of programming and how the code is written and organized.