Core Web Vitals
Core Web Vitals are three key metrics that measure how fast and smooth your site feels to users. This Implementation standard became part of Ranking Factors in 2021 and focuses on loading speed, interactivity, and visual stability.
The three metrics are LCP (Largest Contentful Paint) which measures load time, FID (First Input Delay) which tracks how fast your site responds to clicks, and CLS (Cumulative Layout Shift) which checks if elements jump around while loading. You improve these scores by working on Site Speed through faster servers, smaller images, and better code. Mobile Optimization matters a lot here since most users browse on phones.
Good Core Web Vitals scores improve User Signals by reducing Bounce Rate and increasing Dwell Time as people stay longer on sites that load fast and work smoothly. You can check your scores using SEO Tools like Google PageSpeed Insights.