Perfect for businesses that want to ensure high availability and performance for websites, e-commerce, applications and streaming of multimedia and live events. Content delivery networks use replication and points of presence (PoPs) to deliver “content” to end-users throughout the Internet.
What is Content Delivery?
Content delivery, or content delivery network (CDN), is a large distributed system of servers deployed in multiple data centers across the world. The purpose of content delivery is to serve content to end-users with a high level of availability and performance.
CDNs serve a large fraction 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. Businesses such as media companies and e-commerce vendors pay CDN providers to deliver their content to their audience of end-users. In turn, the CDN provider pays ISPs, carriers, and network operators for hosting its servers in their data centers.
Besides better performance and availability, CDNs also offload the traffic served directly from the content provider’s origin infrastructure, resulting in possible cost savings for the content provider. In addition, CDNs provide the content provider a degree of protection from DDoS attacks by using their large distributed server infrastructure to absorb the attack traffic.
Why Would You Use Content Delivery Networks (CDN)?
There are several reasons why a business or webmaster would want to deploy a CDN. The main driver is performance. CDNs work by delivering content from the nearest point to presence (PoP) to the end user. If your website or multimedia is experiencing slow load speeds or buffering, you may want to consider a CDN.
Benefits of CDN
Cost savings: Organizations are able to take advantage of economies of scale. The costs associated with colocation are far less expensive than building an on-premise server room or data center.
Redundancy: The facilities are purposely built with redundancy in mind. They have redundant power, backup systems, and networks to ensure uptime. It is important to review the tier level and associated SLAs.
Security: The service offers a high level of security including key card entry, biometrics, CCTV, 24×7 staffing, and locking cabinets, cages, and suites.
Support: You can expect increased support capabilities and managed services including remote hands, OS updates and patches, load balancing, and monitoring.
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