Optimizing images on your website is really quite simple yet is often left undone. This technique is in reference to the sizing and the naming of the images on a web page.
Size does not refer to the literal size of an image, but the amount of pixels which comprise the image. Images can be resized fairly easily, and when they are sized to be more suitable for the application, they will load much faster on your site. This means the overall speed of your site will increase, and a faster loading site will rank much better compared to a slower site.
Online images are almost always named with a random sequence of numbers, and when the image is read by search engines it is the numbers that are read, but these images can be renamed to reflect what is on that image. This ensures that when search engines crawl your webpage, they will read the proper name of your image instead of a bunch of random numbers. This helps search engines to know what is on your website, and will increase your chances of ranking higher.
