Web Vitals

Summary

The broader family of metrics (including but not limited to the 'Core' ones) that Google and the web performance community use to measure real user experience.

• 1Install the `web-vitals` JS library and log real metrics from your own app.
• 2Learn the difference between lab data (Lighthouse) and field data (real users).
• 3Compare a few metrics beyond the Core 3, like TTFB and FCP.