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How does lazy loading images affect LCP scores?
Asked on Oct 31, 2025
Answer
Lazy loading images can significantly improve LCP (Largest Contentful Paint) scores by deferring the loading of images that are not immediately visible, thus reducing the initial load time of the page's largest elements.
Example Concept: Lazy loading delays the loading of images until they are about to enter the viewport, which decreases the initial load time and resource consumption. This helps improve LCP by ensuring that only the most critical images are loaded first, reducing the time it takes for the largest visible content to appear on the screen.
Additional Comment:
- Use the "loading='lazy'" attribute on image tags to enable lazy loading in modern browsers.
- Ensure that critical images, such as hero images or above-the-fold content, are not lazy-loaded to avoid delaying LCP.
- Monitor LCP scores using tools like Google Lighthouse or WebPageTest to assess the impact of lazy loading.
- Consider using a polyfill for browsers that do not support native lazy loading.
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