A complete guide to web vitals, lab and field data

Original article at the Bejamas blog

Complete guide to understand and measure the performance of your website.

First, I talk about web performance in general and its evolution in 2022. And I explain, roughly speaking, the different types of Core Web Vitals (CWV) measures, relating the rest of the measures according to the CWV to which it is useful.

All this can be found in the sections:

• What is Web Performance in 2022?
• What metrics are important to measure

Then, I talk about the types of data we can measure, the data we will collect and study while in development (lab data) and the data we will get while analysing our website in production (field data).

This part is divided into:

• What is lab data (synthetic monitoring) and how to measure it?
• What is field data (real user monitoring — RUM) and how to measure it?

And finally I leave you a section with best practices to improve the performance of your website:

• Best practices and resources to improve your performance

In collaboration with Bejamas