What is Largest Contentful Paint?
LCP: the Core Web Vital that measures loading performance. It marks the time from when a page starts loading to when the largest visible content element (typically a hero image, heading block, or video poster) is fully rendered in the viewport. A good LCP is 2.5 seconds or less.
My perspective
In practice
The main levers: optimize hero images (WebP/AVIF, proper sizing, preload hints), eliminate render-blocking resources, use efficient font loading (self-hosted WOFF2 with font-display: swap), and ensure the server responds fast (edge caching, CDN). LCP is often the easiest Core Web Vital to improve with the biggest perceived impact on user experience.