CloudFront

Amazon CloudFront is a content delivery network (CDN) that helps deliver static and dynamic web content to users faster than just serving it out of an AWS Region. For example, if you’re hosting a website from a single AWS Region, as a general rule, the farther a user is away from that region, the more network latency they’ll encounter when accessing it. CloudFront solves this problem by caching your content in a number of data centers called edge locations. There are more than 150 edge locations spread out around the world on six continents.

CloudFront works by sending users to the edge location that will give them the best performance. Typically, this is the edge location that’s physically closest to them. CloudFront also increases the availability of your content because copies of it are stored in multiple edge locations.

The more edge locations you use, the more redundancy you have and the better performance you can expect. As you might expect, the...