Tyler McMullen of Fastly discusses using Content Delivery Networks to improve application speed, reliability, and security. Host Jeremy Jung speaks with McMullen about what CDNs are and how developers can take advantage of them. They discuss how a CDN consists of thousands of edge servers in datacenters around the world; how these servers cache and serve content instead of your application servers to reduce latency and load; misconceptions about what CDNs are capable of doing; the security benefits of using a CDN as a first line of defense; techniques to keep content synced between your application and the CDN; technical challenges related to building a CDN; and how CDNs are becoming an important part of the future of edge computing.