Content Delivery Network (CDN)

Content Delivery Network (CDN) is a large distributed system for transfer of contents between many data centers and traffic exchange points on the Internet. Its ultimate purpose is to make the page contents available to the end user.

CDN service increases availability and performance of webpages, as perceived by end users, as well as decreases the server load, limits the Internet link bandwidth consumption, and protects against cyberattacks.

How does CDN work?

The traffic to protected websites goes through the Grey Wizard intelligent distributed network. The service is based on the Anycast mechanism which directs end users to the nearest site where the requested resources are available.

Content transfer to page visitors may be automatically optimized. In practice, it means that users will fetch static data cached on the Grey Wizard servers. This applies particularly to graphics, CSS style sheets, and Javascript files used on the pages.

The data transferred to website visitors is additionally compressed and marked so that the browser stores it locally in a cache memory instead of re-downloading it (unless the data has been modified).

Also, the CDN mechanism can be controlled through an API, which significantly facilitates the process of content modification on the protected page by its developers.

Additionally, the CDN service activates protection of the webpage against network-oriented and application-oriented attacks by blocking access of malicious bots that consume bandwidth and computing resources of the hosting account.

CDN benefits:

  • global page-protection infrastructure
  • shorter response times for website visitors
  • offloading the customer’s servers
  • increased performance and throughput
  • higher availability and optimized service level for the end user
  • protection against DDoS attacks

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