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What's the impact of lazy loading images on LCP and overall page speed?

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What's the impact of lazy loading images on LCP and overall page speed?

Asked on Dec 21, 2025

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Lazy loading images can significantly improve page speed by deferring the loading of off-screen images, which helps reduce the initial load time and can positively impact the Largest Contentful Paint (LCP) metric.

Example Concept: Lazy loading delays the loading of images until they are about to enter the viewport, reducing the initial page load size and network requests. This optimization technique helps improve LCP by prioritizing above-the-fold content and deferring non-critical resources, leading to faster perceived loading times and improved user experience.

Additional Comment:

Use the "loading='lazy'" attribute on tags to enable native lazy loading in modern browsers.
Ensure critical images above the fold are not lazy-loaded to prevent delays in LCP.
Combine lazy loading with other optimizations like image compression and responsive images for best results.
Test the impact of lazy loading using tools like Lighthouse or WebPageTest to ensure it improves performance.

✅ Answered with Core Web Vitals best practices.

Ask any question about Performance here... and get an instant response.

What's the impact of lazy loading images on LCP and overall page speed?

Asked on Dec 21, 2025

Answer

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