Lazy-loading The lazy-loading HTML attribute tells a browser to either wait before downloading an image or to download it right away. There is no JavaScript need to accomplish this.

Google informally announced a new feature coming to Chrome. It will allow lazy-loading images and iframes with an HTML attribute, no JavaScript required. It will improve the user experience, which ...

The latest proposed test, which hasn't been implemented yet, is a built-in Lazy Loading mechanism for images and iframes.

Mozilla has added support for lazy loading of images and iframes in the latest Nightly build of Firefox. It's disabled by default but enabling it to try out is simple enough, here's how to do it.