Use AWS CloudFront When your Userbase is Geographically Distributed

Amazon Cloudfront : Amazon CloudFront can be used as a global content delivery web service with low latency and high speed data transfer rates. It sends data,videos,applications, and APIs to the viewers.

S3 is mainly used to store and deliver data for your application. But when the user base is geographically distributed, you can’t focus your storage on a particular area of the world to achieve the lowest possible latency. CloudFront has a global network of edge locations called POP(points of presence) which are data centers spread around the world. Replicating content you would like to deliver to your user. Every time a resource is asked for by end users, the request is automatically routed to the nearest POP in order to achieve fast delivery of the content. It can set different domain aliases for your CloudFront distribution for this parallel downloads can happen and improves performance of your appliance.

Benefits 

• Security of the content : AWS CloudFront is a highly-secure Content Delivery Network (CDN) that has each network and application- level protection. The infrastructure is designed to meet the standards and rules of HIPPA, DSS, ISO and PCI to confirm secure delivery of your most sensitive information.
• Great Performance and Devops friendly : It is a highly programmable Content Delivery Network. It is a massively scaled and globally distributed CDN with 200+ points of presence.
• Economical : The user pays just for the information transfer and requests accustomed to deliver content to the customers. With AWS CloudFront, users can distribute content in a cost-effective way. There is a pay-per-use type policy and requires no long-term commitment or minimum fees.
• Integrating Network : Amazon CloudFront is deeply integrated and optimized with key AWS services like S3, EC2, Elastic load balance to assist speed up DNS resolution of the application delivered by CloudFront.

Use Case 

• Live and On-Demand Video Streaming : Cloudfront has options with pre-recorded or live events for streaming media to global viewers. 
• Web Content Delivery : Cloudfront allows to accelerate the delivery of static web content across the global network.
• Customize the edge : Running serverless code at the edge opens-up doors of possibilities for customizing the content. Using Lambda@Edge the user can simply run the code across AWS locations worldwide.
• Serving Private Content : Using Lambda functions you can configure your AWS cloudfront to distribute private content from your own custom origin.
• API acceleration : To secure and accelerate API calls AWS CloudFront supports proxy ways like POST PUT, OPTIONS, DELETE and PATCH and already integrated with Amazon API entranceway by default.