Sure. The simple reason is they're more configurable. We, for example, route traffic differently if you are an Eager user testing your site than if you are visi

Sure. The simple reason is they're more configurable. We, for example, route traffic differently if you are an Eager user testing your site than if you are visiting a site with Eager installed. Using Fastly has allowed us to not touch requests which don't need special handling at all, making our file delivery faster and preventing us from having to roll out our own edge servers.