Introducing Core Web Vitals
CWV is a set of metrics that helps us measure the performance of a web application. It is part of Web Vitals, an initiative led by Google that unifies various guides and tools for measuring performance on web pages. Each metric focuses on a specific aspect of user experience, including the loading, interactivity, and visual stability of a web page:
- Largest Contentful Paint (LCP): This measures the load speed of a web page by calculating how long it takes for the largest element on the page to render. A fast LCP value indicates that the page becomes available to the user quickly.
- Interaction to Next Paint (INP): This measures the responsiveness of a web page by calculating how long it takes to respond to user interactions and provide visual feedback. A low INP value indicates that the page responds to the user quickly.
- Cumulative Layout Shift (CLS): This measures the stability of the UI on a web page by calculating how often unwanted...