A great post is always accompanied by beautiful and relevant images. Images also help to optimize your post while they increase the loading time. Many images will slow down your website’s loading speed and search engine like faster loading blogs. Wp Smush.it is a Yahoo service that optimizes your images without changing their look or visual quality. This version uses the Wp Smush.it API to work within your WordPress site. Once the smush.it plugin is installed and activated, images will be compressed automatically. Apart from smushing your media uploads, you may want to compress the images stored in the folders Wp Smush.it tool lets you compress any image in any directory so that you can optimize all the images on your site which includes NextGEN images, images stored on Amazon S3 using WP Offload S3 and images in every WordPress plugin and theme package. If your blog is huge or has many images, you will need to put your blog on maintenance mode and compress first all the old images.