What is a CDN (Content Delivery Network)?
A CDN (Content Delivery Network) is a network of geographically distributed servers that is used to provide website content more efficiently and quickly. By storing copies of static content such as videos, images and scripts on these servers, the data is loaded from a server that is geographically closer to the user. This reduces loading times and improves the performance of the website, especially for internationally distributed users.
Interactions with the website (e.g. orders or updates) continue to take place via the original main server.
Advantages of a CDN:
- Faster loading times
Content is loaded from servers close to the user. - Relief of the main server
Less load due to distribution of the data load. - Improved availability
If one server fails, others in the network can take over. - Better scalability
Coping with high levels of access through load distribution.