Content delivery is aimed at quickly and efficiently distributing your content to users. The best practice way to do this is to leverage a Content Delivery Network (CDN). Amazon's CDN service is Amazon CloudFront.

While AWS currently has 14 regions, it has an additional 68 edge locations that can be used as part of CloudFront. This gives you a massive global network of resources you can use to improve your users' experience of your application.

CloudFront works closely with S3 to serve static assets. In addition to this, it can be configured to cache dynamic content. This gives you an easy way to improve the performance of applications that are not even aware of CloudFront.

CloudFront websites are referred to as distributions which speaks to their CDN role.