How do I improve my website's LCP value?

LCP is determined by four main factors: Server response time (TTFB), which is reduced through optimized hosting, caching and CDN deployment. Render-blocking resources such as non-critical CSS and synchronous JavaScript that delay rendering. Resource load time, particularly the size and format of the LCP element (often a hero image). Client-side rendering, which can significantly delay LCP in JavaScript-heavy frameworks. The most effective measures typically involve optimizing server response time and delivering the LCP image in modern WebP or AVIF format with correct preloading.