Your page has resources (images, videos, or iframes) that are loading immediately even when they're not visible to the user. On mobile devices with limited bandwidth and processing power, this can significantly slow down the initial page load and waste users' data.
<img src="image.jpg" alt="...">
<iframe src="video.html"></iframe>Add the `loading="lazy"` attribute to images and iframes that are not immediately visible (below the fold).
<img src="image.jpg" alt="..." loading="lazy">
<iframe src="video.html" loading="lazy"></iframe>Lazy loading defers the loading of off-screen resources until they're needed, reducing initial page weight and improving load times, especially beneficial for mobile users on slower connections.
This issue can affect your site's search engine rankings and user experience. Addressing it promptly helps ensure optimal performance and visibility in search results.
Black SEO Analyzer automatically checks for this warning during site analysis, along with hundreds of other technical SEO issues.
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