CDNs are a great way to speed up the site in differently ways. CDN is a content delivery network, it also means a Content Distribution Network. It is a globally distributed network of proxy servers, located in multiple data centers, and when your website is associated with this type of content on the network on your site, website is served to end-users with high reliability and high performance. CDNs provide most of the content on the Internet today, including Web sites, such as text, graphics, downloadable objects including multimedia files, software, documents, e-commerce applications, portals, live media, on-demand streaming media and social networks.
CDN increase the page speed when people view your site no matter where you are in the world because the site pages are cached in a different set of data centers all over the place, so that the content provided to the user comes from the nearest server to them and this in turn reduces the load on the server. Most of these types of networks operate as a service application that is known as the ASP on the Internet also known as on-demand software or software as a service (SaaS).
CDN is a general infrastructure is deployed on the Internet for effective delivery of Web content to Internet users.
When it comes to the security of your site CDNs adds an additional level of protection to your website, for example: If your site is experiencing an attack DDoS Attack the CDN can absorb the attack will ensure you that your website does not go down.
How Does CDN Works?
CDN is also compatible with most SSL or Secure Socket Layer, which is the standard security technology for creating an encrypted link between a web server and a browser. This secure connection and ensures that all data transferred remains private. This is also called TLS (Transport Layer Security). Millions of sites uses SSL encryption every day to keep their customer’s data safe.