--- title: "LCP Optimization Guide: How to Improve Largest Contentful Paint" description: "Complete guide to LCP optimization. Learn the causes of slow loading, image optimization techniques, preload, and Core Web Vitals best practices." date: 2025-12-12 updated: 2026-03-16 category: Optimization tags: ["Core Web Vitals", "LCP", "Performance", "SEO", "Optimization", "Lighthouse"] url: https://uper.pl/en/blog/lcp-optimization-guide/ --- # LCP Optimization Guide: How to Improve Largest Contentful Paint **Largest Contentful Paint (LCP)** is one of the three key [Core Web Vitals](/en/blog/core-web-vitals/) metrics that measures the loading time of the largest visible element on a page. Google uses LCP as a ranking factor, and a poor score can negatively impact your search result positions. ## What is LCP? **LCP** measures the time from the start of page loading until the largest element in the visible area (viewport) is rendered. Typically, this element is: - Hero image - Large text block - `