CloudFront

• CloudFront is a CDN

• It's a global service, not specific to any region.

• Edge Location: location where content will be cached and is separate from an AWS region/Availability Zone(AZ).

• Origin: Origin of all files that the CDN will distribute. This can be an S3 bucket, an EC2 instance, an Elastic Load Balancer, or Route53.

• Distribution: This is the name given to the CDN which consists of a collection of Edge Locations.

• CloudFront distribution types:

  • Web Distribution: Typically used for Websites.

  • RTMP: Used for adobe flash media streaming.

• Objects are cached for the life of the TTL.

• Cache can be cleared, but it'll be charged.