Lighthouse is an open-source, automated tool for improving the quality of your web apps.
Web Development is an ever changing landscape, and as such we use a variety of tools to evaluate what we do. Like many others with a vested interest in the web, Google has its own projects, and Lighthouse is one of them.
I find the Lighthouse tool particularly interesting for two reasons - firstly because it looks at a few of the more recent specs like Progressive Web Apps and the difficult-to-evaluate concepts like perceived speed, and secondly because it's developed by Google, which implies that it's looking at the kind of website optimisations that Google cares about when indexing a website.
What Lighthouse checks
A few of the things that Lighthouse currently tests for are:
- Offline/flaky connection support
- Page load performance
- Progressive Enhancement
- Secure connection (HTTPS)
- Page render speed / avoiding "jank"
- Modern accessibility tags
- The Lighthouse tool on Google Developers
- Lighthouse on the Chrome Web Store
- Lighthouse on NPM
- Lighthouse report Viewer
And if you're interested in an example report, take a look at the report for www.psyked.co.uk