<p>Lazy loading is an optimization technique that waits to load elements until they are on or near the screen.</p> <p>Images are typically the largest files that load on a given page, and lazy loading them is a great way to reduce the amount of data that loads when a reader visits your site. This will improve site speed, especially those critical <a href="https://developers.google.com/web/fundamentals/performance/user-centric-performance-metrics">user-centric metrics</a> that measure how