What is a content delivery network?

What is a content delivery network?

So what’s a content delivery network?

A content delivery network or content distribution network (CDN) is a geographically distributed network of proxy servers and their data centers. The goal is to distribute service spatially relative to end-users to provide high availability and high performance. CDNs serve a large portion of the Internet content today, including web objects (text, graphics, and scripts), downloadable objects (media files, software, documents), applications (e-commerce, portals), live streaming media, on-demand streaming media, and social networks.

CDNs are a layer in the internet ecosystem. Content owners such as media companies and e-commerce vendors pay CDN operators to deliver their content to their end users. In turn, a CDN pays ISPs, carriers, and network operators for hosting its servers in their data centers.

The term CDN is an umbrella term spanning different types of content delivery services: video streaming, software downloads, web and mobile content acceleration, licensed/managed CDN, transparent caching, and services to measure CDN performance, load balancing, multi-CDN switching and analytics and cloud intelligence. CDN vendors may cross over into other industries like security and WAN optimization.

  • Improved security

  • Enhanced performance – adipisicing elit sed eiusmods

  • Access from anywhere – labore et dole magna aliqua

  • Real-time backups – ut enim ad minim vem quis nostrud

  • Entirely cloud based – sit amet consetetur lorem ips dolor

  • Any number of devices – tempor incidunt un adicing elit

Servers nearest to the website visitor respond to the request. The content delivery network copies the pages of a website to a network of servers that are dispersed at geographically different locations, caching the contents of the page. When a user requests a webpage that is part of a content delivery network, the CDN will redirect the request from the originating site’s server to a server in the CDN that is closest to the user and deliver the cached content.

Many Businesses Use CDNs.

When delivering large scale websites to a global audience, CDNs can reduce latency, accelerate site load times, reduce bandwidth consumption secure applications and even block data scrappers and other forms of spammers hitting your server.
Content delivery networks are used for B2B interactions and in serving content to consumers. Today, as more aspects of daily life move online, organizations use content delivery network to accelerate static content, dynamic content, mobile content, e-commerce transactions, video, voice, games and so on.

CDN management software dynamically calculates which server is located nearest to the requesting client and delivers content based on those calculations. This not only eliminates the distance that content travels, but also reduces the number of hops a data packet must make. The result is less packet loss, optimized bandwidth and faster performance, which minimizes timeouts, latency and jitter, while improving overall user experience (UX).

In the event of an internet attack or malfunction at a junction of the internet, content that’s hosted on a CDN server will remain available to at least some users.