It looks like the developer said that it can lazy load external images.
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Lazy Load will delay the loading of images outside of viewpoint to make the page load faster.
This should help you decide if you want to incorporate it or not.
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Why lazy load images or video instead of just loading them?
Because it's possible you're loading stuff the user may never see. This is problematic for a couple reasons:
It wastes data. On unmetered connections, this isn't the worst thing that could happen (although you could be using that precious bandwidth for downloading other resources that are indeed going to be seen by the user). On limited data plans, however, loading stuff the user never sees could effectively be a waste of their money.
It wastes processing time, battery, and other system resources. After a media resource is downloaded, the browser must decode it and render its content in the viewport.
When we lazy load images and video, we reduce initial page load time, initial page weight, and system resource usage, all of which have positive impacts on performance. In this guide, we'll cover some techniques and offer guidance for lazy loading images and video, as well as a short list of some commonly used libraries.
08-23-2019, 08:10 PM
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