It is a geographically distributed server network that ensures faster web performance by permitting quick transfer of web content that is closer to end users. Its popularity has grown over time due to the benefits it provides. It is located on the 'network edge', which is closer to the customer's end. Therefore, it is also called an 'edge server'.

Each server caches copies of the web content such as HTML files, images, audio, video, and applications—from the host server and ultimately, brings files closer to the customers, and reduces the time for the data to stream across the network.

Here is the list of benefits provided by the CDN:-

1- Reduced load time

A content delivery network reduces the content load times enabling publishers to have more page views and improved customer engagement.

2- Reduced cost

Web hosts charge organizations for data transferred from the origin server. However a CDN, by storing copies of content closer to the users, enables fewer data transfers from the origin server, reducing an organization's bandwidth consumption and costs.

3- Reducing bandwidth costs

Bandwidth consumption cost is a primary expense for websites. Through caching and storing copies of data, CDNs can reduce the amount of data an origin server must provide, thus reducing hosting costs for website owners.

4- Content availability

Huge traffic quite often leads the website to interrupt the normal website function. However, a CDN ensures to handle more traffic and manages hardware failure due to its dispersed network.

5- Promotes website security

CDN provides enhanced website security by providing DDoS, MITM, and other optimizations.

6- Promotes customer satisfaction More waiting time for loading a website often results in an unhappy customer. CDN by providing higher availability of data and lowering the downtime ensures that the customers are satisfied with the overall performance.