Notes about tools for measuring and learning about performance.
| Name + Link | Usecase |
|---|---|
| Google Pagespeed Insights (PSI) | Measuring load and render performance, highlighting basic responsive design issues |
| What does my site cost | Measuring how much the payload of a website costs in different countries |
| Webpagetest | Measuring load and render performance, with comprehensive video and waterfall charts, on a choice of devices and connection speeds |
| Google Lighthouse ("Audits" tab in Chrome Devtools) | Measuring load and render performance, and some basic best practice, PWA, and accessibility criteria |