CDN stands for Content Delivery Network, is a distributed network of servers which can efficiently deliver web content such as images, style sheets, documents etc. to the users. Suppose an applications source is far away from the end user and many tours are taken over the internet to fetch data then, the CDN offers a very easy solution to improve the performance. Moreover, it scales the instant high load in a very efficient manner.
CDNs store cached content on edge servers that are close to the end users, to minimize latency. It works in the same way as local caching in the DotNet Framework to maintain images, style sheets, documents, files. Azure Content Delivery Network (CDN) helps developers a global solution for quickly delivering high-bandwidth content to the users. Azure CDN has servers in more than 70 cities around the world. Using this service, user can prefer to cache static objects which are loaded from a web application or Azure blob storage by using the nearest Point of Presence (POP). As well as a user can also cache the static objects from any of the publicly accessible web servers.
Advantages
- Lower latency
- Faster delivery
- Reduce load on a web application
- High-bandwidth
- Availability of Azure blob storage
- It has high scalability
Some of the Azure CDN key features
- Dynamic site acceleration
- CDN caching rules
- Custom domain support (HTTPS)
- Diagnostics logs
- File compression
- Geo filtering
