Swift Performance – WordPress Cache & Performance Booster
Swift Performance provide intelligent caching, you can cache AJAX requests and dynamic requests as well.
Swift Performance comes with a built-in image optimizer. You can losslessly compress your JPEG and PNG images, and improve your site’s performance.
Swift Performance provides CDN support. You can specify a hostname what will be used for static resources. You can also set 3 different hosts for CSS, JS and for media files.