Google Core Web Vitals impact SEO and website performance

Google’s Core Web Vitals serve as official ranking factors that impact search engine optimization (SEO) and business performance by prioritizing user experience. The metrics include Largest Contentful Paint (LCP), which measures the time until the largest visible element renders; Cumulative Layout Shift (CLS), which tracks layout stability; and Interaction to Next Paint (INP), which measures responsiveness to user interactions.

Website performance is closely linked to revenue. Data indicates that every 100ms of latency can cost Amazon 1% in sales, while Walmart has reported a 2% conversion increase for every one-second improvement in page load time. Frameworks like Next.js offer built-in optimizations such as automatic code splitting and server components to help developers achieve high PageSpeed scores and meet these performance targets.