CDN

CDN (Content Delivery Network) is a system of servers located in various places around the world that contains copies of website content within the system to distribute data content such as: images, CSS, JavaScript, videos, download files… to end-users.

Bizfly CDN is an automatic system that optimizes the capacity and distributes website content from server clusters to maximize page loading speed for users across Vietnam, reducing bandwidth consumption by over 90%.

How does Bizfly CDN work?

  1. The user (Alice) sends a request for a file using a URL with a domain name in the format .cdn.vccloud.vn. DNS directs this request to the best CDN server cluster, which is usually the CDN server cluster geographically closest to the user and has the fastest network speed from the user to the CDN server cluster.
  2. If this file is not yet cached on the CDN server, the CDN server will then request the file from the website’s origin server.
  3. The origin server returns the file content to the CDN server.
  4. The CDN server returns the file content to the user (Alice) and caches the file on its server.
  5. Other users (in the same region as Alice) subsequently request the file using the same URL.
  6. The CDN server will serve the file content from its cache to these users. This process leads to faster file delivery, improving the user experience while also significantly reducing the amount of traffic to the origin server.

Features of Bizfly CDN

  • Intelligent and Efficient Data Distribution: With an automatic mechanism to identify the server location closest to the user based on geographical location and network speed from the user to the CDN servers, users connect to the fastest server to retrieve data.
  • Caching: Instead of accessing and retrieving data from the origin server, users obtain data from the CDN server, resulting in significantly faster speeds and bandwidth savings. The multi-layer caching solution (Hot cache and warm cache) significantly reduces the amount of traffic to the origin server. Cache is a temporary data storage location designed to accelerate data retrieval in subsequent accesses.
  • Image Optimization: Eliminates unnecessary data portions, compresses images, and converts image formats to reduce the size of images on the website. This accelerates website access, significantly reduces bandwidth costs for website owners, and lowers data costs for mobile network users.
  • Automatic Traffic Redirection Between Server Clusters: When there is an issue with any server cluster, the system automatically redirects user traffic to another healthy cluster, ensuring uninterrupted website operation.
  • Link Security: Helps protect links from unwanted access, ensuring that a link can only be accessed within a defined period.
Supported Locations Quick Start