What is AWS CloudFront?

In this article, I will explain What is AWS CloudFront.

Amazon CloudFront is a content delivery network (CDN) service provided by Amazon Web Services (AWS). CloudFront is designed to distribute content, including web pages, images, videos, and other static and dynamic assets, to users around the world with low latency and high data transfer speeds. By caching content at edge locations globally, CloudFront reduces the distance between end users and your origin server, improving the performance and availability of your web applications and content.

Key Features

The following list shows key features and concepts of Amazon CloudFront.

  1. Content Distribution. Basically, CloudFront accelerates the delivery of content by distributing it to a network of edge locations located across multiple geographic regions.
  2. Edge Locations. In fact, Edge locations are data centers that store cached copies of your content closer to end users. This reduces latency and minimizes the load on your origin server.
  3. Origin Servers. An origin server is the source of the content that CloudFront delivers. It can be an Amazon S3 bucket, an Amazon EC2 instance, an Elastic Load Balancer, or even a custom HTTP server.
  4. Caching. CloudFront caches content at edge locations based on a TTL (time-to-live) that you configure. Cached content is served to users from edge locations, reducing the need to fetch content from the origin server.
  5. Distribution Types. CloudFront supports both web and RTMP (Real-Time Messaging Protocol) distributions. Web distributions are used for delivering web content, while RTMP distributions are used for streaming media content.
  6. Security Features. CloudFront supports features like SSL/TLS encryption (HTTPS), field-level encryption, and integration with AWS Web Application Firewall (WAF) to enhance the security of your content.
  7. Customization. You can customize how CloudFront behaves using features like signed URLs and signed cookies for access control, query string parameters for cache key variations, and Lambda@Edge for running code at edge locations.
  8. Reporting and Monitoring. CloudFront provides detailed reports and logs that allow you to monitor and analyze your distribution’s usage and performance.
  9. Integration with AWS Services. CloudFront seamlessly integrates with various AWS services, including Amazon S3, Amazon EC2, AWS Elastic Beanstalk, and AWS Lambda.
  10. Global Reach. CloudFront has a global network of edge locations, making it suitable for delivering content to users all around the world.


In short, Amazon CloudFront is used by organizations to accelerate the delivery of their web applications, APIs, video streams, and other content to users with low latency and high reliability. By caching content at edge locations, CloudFront helps improve user experience, reduce the load on origin servers, and ensure that content is available even in the face of traffic spikes and regional outages.

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