Hello , I have a problem with my site. We are using apache + ngnix at server side.Apache for dynamic content and ngnix for static. At this time we faced the problem of highload and we need to transfer our static content to different server to decrease a load. Please advice a good content delivery network (free or not). We tried to use http://www.coralcdn.org/ but it is free and load speed is not enought for some of our projects. Thanks for any help.