A Content Delivery Network (CDN) is a network of servers spread across various geographical locations, aimed at ensuring high performance and availability by caching content and serving it from sites nearer to the user. By keeping copies of web resources such as images, videos, and scripts on these distributed servers, a CDN minimizes the distance data needs to travel, thereby reducing latency and enhancing page loading speeds for users.
CDNs provide numerous benefits, including improved website performance through faster load times, which enhances user satisfaction and decreases bounce rates. They also boost content availability and security while lowering bandwidth expenses for website owners by caching data closer to the end users.
CDNs rely on several fundamental technologies that collaborate to speed up content delivery. Their design prioritizes speed, reliability, and security, featuring a distributed network, smart caching, and strong security protocols.
When assessing content delivery options, the terms 'Content Delivery Network' and 'Content Distribution Network' are frequently used interchangeably, although they denote the same foundational technology.
This illustrates how a CDN provides content to you.