On a typical product page, there are a half dozen images. And many of them are "below the fold." The fold is a term from the newspaper industry where there was a literal fold. You wanted your best headlines and photos to be above the fold so everyone would see them.
In the following screenshot, you can see where my fold is on my laptop and what is considered above and below the fold:
In the web world, we still use the fold terminology but we talk about it in different ways. And when it comes to optimization we can "lazy-load" our images. Lazy loading means we only download the image once the viewer starts scrolling down.
A few of the plugins we've looked at in this chapter will do this for us. But I want to show you how to do this with a free plugin that we've already installed.