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Content Delivery Networks (CDN)

Content Delivery Network (CDN) Overview

What is a Content Delivery Networks (CDN)?

A Content Delivery Networks (or CDN) is a service operating across a widely distributed system of servers to bring web content to an end-user based on the end-user's geographic location.


A server optimally situated to deliver the best performance and fastest load times is determined algorithmically, with the goal of noticeably improving the end-user's experience (e.g. reduced page load time). This technology is becoming more essential as websites offer more streaming video, e-commerce and other applications where performance really matters.

Content Delivery Network (CDN) Features & Capabilities

  • Dynamic site acceleration

  • CDN caching rules

  • Diagnostic logs

  • File compression

  • Geo-filtering

  • HTTP/2 support

  • DDOS protection

How CDN’s Work

CDN providers cache content in their own network or in third-party networks. When a user clicks on a website, the CDN redirects the request to the to the server geographically closest to the user without the user being aware. The CDN calculates which server is nearest to the requestor and delivers content based on those calculations. The CDN eliminates the number of hops that a data packet must make which leads to optimized bandwidth and increased performance. It can also be useful in the event of an outage as content housed on a CDN remains accessible to at least a portion of the user base.


More recently, CDNs have been using machine learning technology to enable faster load and delivery times.

Pricing Information

CDN pricing is typically a price per GB, with a sliding scale of decreasing cost as the overall volume increases. Price also varies depending on the geographic zone. As an example, for the first tier of 10 TB in North America and Europe, the per GB price may vary between $0.04 to $0.25 or more, depending on product capabilities.

Content Delivery Networks (CDN) Products

Listings (1-25 of 32)

18 Ratings

Pantheon is the website management platform marketers and developers rely on to build, host, and manage their most important sites. Pantheon includes all of the tools professionals need to build best-in-class sites—like staging environments, version control, backups, and automated workflo...

IBM Cloud Internet Services is a set of edge network services for securing internet-facing applications from DDoS attacks, data theft, and bot attacks, as well as optimizing their web apps or ensuring global responsiveness and the ongoing availability of their internet-facing applications.

2 Ratings

Fastly, headquartered in San Francisco, offers the Fastly Edge Cloud Platform Content Delivery Network (CDN). Priced by bandwidth in gigabytes and number of file requests, Fastly supports image optimization, video and streaming, load balancing, and cloud security via web application firewall (WAF...

We don't have enough ratings and reviews to provide an overall score.

ChinaCache is a content delivery network (CDN) from the Chinese company of the same name.

We don't have enough ratings and reviews to provide an overall score.

KeyCDN is the content delivery network from the Swiss company of the same name.

We don't have enough ratings and reviews to provide an overall score.

CDNetworks is a global content delivery network (CDN) from the company of the same name headquartered in San Jose, California.

We don't have enough ratings and reviews to provide an overall score.

Internap CDN is the content delivery network from Atlanta-headquartered Internap.

We don't have enough ratings and reviews to provide an overall score.

LeaseWeb CDN is the content delivery network from Dutch web hosting company, LeaseWeb.

We don't have enough ratings and reviews to provide an overall score.

MetaCDN is a content delivery network from the Australian company of the same name.

We don't have enough ratings and reviews to provide an overall score.

EdgeCast is a content delivery network (CDN), acquired by Verizon in 2013.

We don't have enough ratings and reviews to provide an overall score.

CDN77 is a Content Delivery Network with 35+ PoPs worldwide. According to the vendor, CDN77 aims to be an innovation leader and was the first CDN to implement HTTP/2, Brotli compression algorithm or QUIC.The vendor offers 14Tbps+ network capacity which can handle website acceleration, software di...