A Deep Dive into Native Lazy-Loading for Images and Frames
CSS - Tricks
MAY 15, 2019
Today's websites are packed with heavy media assets like images and videos. Images make up around 50% of an average website's traffic. The obvious problem with this approach is the length of the critical path for displaying the website. Many of them, however, are never shown to a user because they're placed way below the fold.
58 
Let's personalize your content