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How Website Speedy solves PageSpeed Insights’ “Defer offscreen images” warning

Posted on 2025-04-22 Updated on 2025-07-09

Website Speedy has built in functionality to lazy load all the images, iFrames and videos from YouTube/Vimeo. 

It also has the capability to lazy load all background images including those specified in CSS. Indeed it can detect the declarations in external files multiple levels down an import chain. 

This feature is particularly effective for a few WordPress themes. Additionally, Website Speedy implements lazy loading for several slider images as well.

All of our lazy loading features are enabled by default. You do not have to follow any settings.

For more information on lazy loading, you can check out our comprehensive article here:

What Is Lazy Loading? How Does It Affect Website Performance?


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