Lazy-loading images and iframesThe loading="lazy" attribute for <img> and <iframe> elements blocks loading the external resource until the user scrolls to that element's part of the page.widely2023-12-192026-06-19https://html.spec.whatwg.org/multipage/urls-and-fetching.html#lazy-loading-attributesloading-lazy-attrhttps://developer.mozilla.org/docs/Web/API/HTMLImageElement/loadingapi.HTMLIFrameElement.loadingapi.HTMLImageElement.loadinghtml.elements.iframe.loadinghtml.elements.img.loadinghttps://nowyoucanuse.com/features--loading-lazy.html