The key benefit from having this system built out: You will always use it efficiently because instead of only one stream coming back through at a time all contents are being delivered simultaneously over multiple connections leading. There are many software's which provides such services but Rackspace CDN, Google Cloud CDN, Akamai, Swarmify, Limelight, Microsoft Azure CDN, Amazon CloudFront, CloudFlare, KeyCDN, StackPath CDN, SoftLayer CDN, Incapsula Content Delivery Network, CacheFly, CDN77 are the top content delivery network provider.