Core Web Vitals are a set of user-facing metrics blongs to speed, visual stability and responsiveness. These help site owners measure user experience on the web. Core Web Vitals have become a ranking factor from June 2021.
The Search Console Web Vitals metrics are devided into Core and non-Core Web Vitals.
Core Web Vitals are:
1.Largest Contentful Paint (LCP)
2.First Input Delay (FID)
3.Cumulative Layout Shift (CLS)
Non-Core Web Vitals are:
1.Total Blocking Time (TBT)
2.First Contentful Paint (FCP)
3.Speed Index (SI)
4.Time to Interactive (TTI)

Why are Search Console core web vitals important?
- WebSite Visitors love fast loading sites(opens in a new tab) that are easy and pleasant to use, on any device, from any location.
- Google made Core Web Vitals as a ranking factor from June 2021
- Google has hinted that they may start displaying a “Good Page Experience” badge in search results.