Lazy loading is technique that defers loading of non-critical resources at page load time. These non-critical resources are loaded at the moment of need.
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.
