Search Engine Optimization is all about optimizing you website for best performance and helping search engines see your site more clearly.
Optimizing images is a required to make you sites load faster and display pages faster, which brings benefits to improve the navigation of the reader, reducing load time. The traditional way is to use a graphics editor like Photoshop or Gimp. However, Yahoo! has a very convenient alternative image optimizer called Smush.it.
Smush It is a simple application that allows you optimize images on a massive scale. You can specify the images from your hard drive or from a URL, the result is a zip file with all images optimized.
Smush.it uses optimization techniques specific to image format to remove unnecessary bytes from image files. It is a “lossless” tool, which means it optimizes the images without changing their look or visual quality. After Smush.it runs on a web page it reports how many bytes would be saved by optimizing the page’s images and provides a downloadable zip file with the optimized image files.
The optimization depends on the image size, but typically ranges from 10% to 60% and the quality loss is barely noticeable. This is simply an awesome, quick alternative if you need to optimize large numbers of images.