Core Web Vitals are a set of metrics developed by Google that assess the quality of user experience on a website in terms of loading speed, interactivity, and visual stability. Specifically, they include the metrics LCP (Largest Contentful Paint), FID (First Input Delay), and CLS (Cumulative Layout Shift). These factors have a direct impact on SEO rankings and user ratings, which is why websites that optimize Core Web Vitals have a better chance of achieving higher positions in search results and lower bounce rates.