AWS - Cloudfront



  • Edge Location :- This is the location where content will be cached. This is separate to an AWS Region or AZ.
  • Origin :- This is the origin of all the files that CDN will distribute. This can be either a S3 bucket, an EC2 instance, an Elastic load balancer or Route53.
  • Distribution :- This is the name given to the CDN which consists of collection of Edge locations.
  • Web Distribution :- Typically used for websites.
  • RTMP :- Used for media streaming.
  • Edge locations are not just read-only, you can write to them too.
  • Objects are cached for the life of the TTL (Time To Live).
  • You can clear cached objects, but you will be charged.
  • Can have multiple origins to a CDN.
  • Can restrict access to CDN using signed URLs.
  • Content can be restricted based on Geographical location. Whitelist and blacklist supported.

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