This is what any CDN does, including CloudFront (although supposedly CloudFront's cache hit ration is fairly low). The specific issue at hand is in what way CloudFlare (a CDN) saved more money than CloudFront (another CDN): neither "it typically saves money" (eastdakota's answer) nor "it is a CDN" (effectively your answer) answer that question: these are both nothing more than tautologies restated from the initial question, and do not help someone attempting to compare these two services. (Personally, I use CDNetworks, after having used EdgeCast for a while and evaluating Akamai for my use case; I personally see no reason why I would use CloudFlare, but am always curious.) (Is the issue simply that CloudFront is so expensive that you don't feel you are saving much money? Hence my question then about negotiating with a larger CDN, such as any of the ones I was working with.)