Want to learn and understand the basics of HTTP, CDN, Cookies and GET/POST requests? Want to speed up your site? You need to use CDN. This is really good read.
From the article:
Using CDNs has long been something in the domain of the Alexa top 100; something a small(er) website does not need or cannot afford. This has changed over the last years, with a multitude of pay-per-use, non-enterprise vendors on the market CDNs became affordable for everybody. This article intends to show you how to get started with this easy to use caching variant.