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Content Delivery Network (CDN) is the name given to a network of servers that deliver cached static content to users based on their location. KeyCDN’s service onto Wordpress has been made especially easy thanks to its dedicated CDN Enabler plugin. PageCDN is a relatively new player in the world of Content Delivery Networks and offers innovative features such as DDoS mitigation, free SSLs, HTTP/2 support, Restful API support and a strong control panel to boot. Key CDN offers a pay-as-you-go style service which ensures that users only cough up for the features that they use.