cdn || Content Delivery Network

what is CDN OR content delivery network
HOW ITS WORK , TECHNOLOGY
CDNs have grown to 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 media sites.
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, with DDoS protection and web application firewalls (WAF) and WAN optimization.
CDN nodes are usually deployed in multiple locations, often over multiple Internet backbones. Benefits include reducing bandwidth costs, improving page load times, or increasing global availability of content
cdnjs ,
BootstrapCDN,
Cloudflare,
JSDelivr,
PageCDN ,
Akamai Technologies,
Amazon CloudFront,
Aryaka,
Azure CDN,
CacheFly,
CDNetworks,
CenterServ,
ChinaCache,
Cloudflare,
Cotendo,
EdgeCast Networks,
Fastly,
Google Cloud CDN,
HP Cloud Services,
Incapsula,
Instart,
Internap,
LeaseWeb,
Lumen Technologies, formerly Level 3 Communications,
Limelight Networks,
MetaCDN,
NACEVI,
OnApp,
Godaddy,
OVH,
Rackspace Cloud Files,
Speedera Networks,
StackPath,
StreamZilla,
Wangsu Science & Technology,
Yottaa,
Telco CDNs
AT&T Inc. ,
Bharti Airtel ,
Bell Canada ,
BT Group,
China Telecom,
Chunghwa Telecom,
Deutsche Telekom,
KT,
KPN,
Lumen Technologies,
Megafon,
NTT,
Pacnet,
PCCW,
Qualitynet,
Singtel,
SK Broadband,
Spark New Zealand[
Tata Communications,
Telecom Argentina,
Telefonica,
Telenor,
TeliaSonera,
Telin,
Telstra,
Telus,
TIM,
Turk Telekom,
Verizon,
Commercial CDNs using P2P for delivery
BitTorrent, Inc.,
Internap,
Pando Networks,
Rawflow,
Multi CDN
MetaCDN,
Warpcache ,
In-house CDN
Netflix,