Content Delivery Networks (CDN)
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
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.
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.
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.…
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…
EdgeCast was a content delivery network (CDN), acquired by Verizon in 2013. It is now the foundation of the Verizon Media Platform, an integrated platform designed to support live events and related events, with security features (e.g. DDoS protection, application firewall, etc.…
Aryaka in San Mateo offers SmartCDN, a CDN service which they state provides superior performance for dynamic IP applications for users worldwide. It leverages Aryaka’s global private Layer 2 network to bypass the congested public internet across the middle-mile, delivering enterprise-…
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,…