Images can not only slow down a page due to their file format, size, and Industry Email List quantity, but they can also slow things down depending on how they are loaded. Even though the latest HTTP/2 network protocol has improved the process of loading multiple images at once, lazy loading images below the fold (especially larger ones) can significantly improve performance in some cases ( especially articles or galleries for example). The Industry Email List lazy loading technique allows the page to finish loading even though many off-screen images only start loading once a visitor scrolls down the page.
While this technique can improve page speed, it can negatively impact image indexing if not implemented correctly. Note: If you're implementing Industry Email List an infinite scrolling experience, be sure to support paginated loading, potentially using additional <no script> tags for images, etc. Image sitemaps also help Industry Email List with indexing if discovery and crawling are problematic. Including images in your page's structured data also increases the likelihood of a carousel or rich result (image badges). Scale your images to their actual display size:
Making sure you don't serve images larger Industry Email List than necessary to display them properly in the browser window is another often overlooked area of optimization. Pages often load images which are then scaled down by browsers to fit users' screen configurations: it is important not to serve images larger than the user's window can display to save unnecessary bytes . In your web browser, right-click on an image, click Inspect, and hover over the imp Industry Email List element to see the original (or “natural”) image dimension as well as the browser's scaled-down version. Ideally, these should be as close together as possible