A geographically distributed network of servers that delivers internet content from locations closer to end users.
A CDN retrieves content from an origin store and caches copies on edge servers around the world. When someone requests the content, the network attempts to serve it from a nearby edge location.
Reducing the distance between content and users improves load times and lowers latency. CDNs can also reduce origin bandwidth costs, absorb traffic spikes, improve availability, and provide protection against distributed denial-of-service attacks.