The Core Web Vitals are ranking factors or a set of metrics that determines the loading speed, interactivity, and visual stability of a website page. In simpler terms, it’s a deciding factor that determines whether or not your users will have a good experience on your website. Basically, it boils down to three important factors:
Largest Contentful Paint (LCP)
First Input Delay (FID)
Cumulative Layout Shift (CLS)