Preloading responsive imagesThe imagesrcset and imagesizes attributes with the rel="preload" attribute for the <link> HTML element starts fetching responsive images before they're found in the body of the document.widely2023-12-112026-06-11https://html.spec.whatwg.org/multipage/semantics.html#attr-link-imagesrcsethttps://developer.mozilla.org/docs/Web/API/HTMLLinkElement/imageSizesapi.HTMLLinkElement.imageSizesapi.HTMLLinkElement.imageSrcsethtml.elements.link.imagesizeshtml.elements.link.imagesrcsethttps://nowyoucanuse.com/features--preloading-responsive-images.html