A Service that allows you to quickly extend and deliver company services and content to the world

The full name of CDN is Content Delivery Network. It is a content caching technique that is transmitted on the Internet. Through the deployment of CDN services at different edge locations around the world, it can effectively reduce the delay of content transmission and ensure that websites can be read at the same speed around the world. Therefore, CDN has the features of accelerated web browsing, effective streaming, high stability, and high security. This is why many content providers such as Spotify, MLB Advanced Media, King, and Rovio use CloudFront to deliver content and services to the world. Coming up, Nextlink introduces you to CloudFront, AWS’s CDN service, and its applications.

IaaS:AWS Edge Location

Edge location is an AWS node deployed in major cities and densely populated areas around the world. It allows end-users to accelerate access to content and services provided by the company. The CDN service – CloudFront and the DNS service – Route 53 on AWS are applied to Edge locations. On these Edge Locations, AWS actively enables AWS Shield and AWS WAF to prevent known network attacks and increase the possibility of DDoS defense. So far, Amazon CloudFront has a global network of 189 connection points (178 Edge Locations and 11 regional node caches) in 71 cities in 32 countries. The picture above shows the distribution of basic equipment that AWS has deployed worldwide.

Amazon CloudFront

The CDN service in AWS is Amazon CloudFront. Amazon CloudFront provides developers and enterprises a simple way to publish content to end-users through a global network of nodes to achieve low-latency high-speed data transmission. With Amazon CloudFront services, there is no minimum usage limit, which effectively controls the cost of content delivery and distribution for customers, providing flexibility and speed. You can also link Amazon CloudFront with S3, EC2, and ELB on AWS. If you use these services as the original AWS server, you do not need to pay for the transfer between these services and Amazon CloudFront.

Following are some benefits of Amazon CloudFront

Fast: Caches your copy of static content through Edge Locations near the viewer’s nodes around the world, shorten the download delay for viewers, and complete large-scale content delivery tasks instantly.

High integration: It can be connected to services on AWS, such as S3, EC2, ELB, Route 53, and Elemental.

Affordable: No commitment on minimum usage, suitable for any content type, such as static content, dynamic content, streaming media, or apps.

Reliable: Automatically route end users to the nearest available Edge Locations as required by network conditions. The original request from the Edge Location to the original server is transmitted through a continuously monitored network path and optimized for availability and performance.

Amazon CloudFront in practice

Deliver your entire website or web application:

With the Amazon CloudFront CDN service, you only need to use a single domain name to deliver static, dynamic, interactive content from your network, or content uploaded by the end user to the original server, without the need to distinguish between static and dynamic content; The Amazon CloudFront CDN service also gives you fine-grained control over the configuration of multiple origin servers, which speeds up website downloads and reduces the chance of your website being abandoned.

Publishing software or other large files:

The Amazon CloudFront CDN service is the best choice for those who want to distribute applications, updates, or other downloadable software to end users. The high-speed data transfer rate of the Amazon CloudFront CDN service accelerates your application downloads, improves the customer experience, and reduces costs.

Delivering media files:

If your application contains a lot of frequently accessed media content, Amazon CloudFront CDN’s lower data transfer price and improved data transfer speed will greatly help you. Whether it’s pre-recorded or live media, the Amazon CloudFront CDN service offers multiple options for you to deliver media files.


You can place application code on Edge Locations close to the user to improve performance and reduce latency. With Lambda @ Edge, you can perform many applications such as SEO, A / B testing, timely conversion of user-based images, user tracking and analysis services.