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How does lazy loading images improve page speed?

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How does lazy loading images improve page speed?

Asked on Dec 02, 2025

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Lazy loading images is an effective technique to improve page speed by deferring the loading of images until they are needed, reducing initial page load time and resource usage.

Example Concept: Lazy loading delays the loading of images that are not immediately visible in the viewport. This reduces the number of HTTP requests during the initial page load, leading to faster rendering and improved performance metrics like Largest Contentful Paint (LCP). By using the "loading='lazy'" attribute in image tags, browsers can automatically handle this optimization, loading images only when they are about to enter the viewport.

Additional Comment:

Lazy loading is particularly beneficial for pages with many images or long content.
It helps reduce bandwidth usage, especially on mobile devices.
Ensure that critical images (e.g., above-the-fold) are not lazy-loaded to avoid delays in rendering important content.
Modern browsers support native lazy loading, making it easier to implement without additional JavaScript libraries.

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How does lazy loading images improve page speed?

Asked on Dec 02, 2025

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