Lazy loading is a strategy to identify resources as non-blocking (non-critical) and load these only when needed. Critical rendering path · Navigation and resource timings
The HTML <img> tag is used to embed an image in a web page. Images are not technically inserted into a web page; images are linked to web pages. Image Map · A floating image · Try it Yourself · Images in Another Folder
The loading attribute specifies whether a browser should load an image immediately or to defer loading of off-screen images until for example the user scrolls ...