[Plugin: W3 Total Cache] How to use cdn

what cdn do you want to use? There are several available, and the process for setting up each is a bit different. I only have experience with Amazon’s CloudFront, but there’s no actual uploading involved if you set it to “pull” mode, you just enter your AWS credentials, click the button to add the distribution, and that’s pretty much it.

Here’s a blog post on setting up MaxCDN