What is Content Delivery Network? What are its use cases?

What is Content Delivery Network?

A Content Delivery Network (CDN) is a system of distributed servers that deliver web content to a user based on the geographic locations of the user, the origin of the web page and a content delivery server. CDN service providers host copies of web content on servers in multiple locations, allowing users to access the content from the server that is geographically closest to them. This reduces latency and improves the overall performance of the website by reducing the physical distance that data must travel.

Content delivery network image


What are the common use cases of CDN ?

There are several common use cases for a Content Delivery Network (CDN):

  • Improving the speed and performance of a website: By delivering content from a server that is physically closer to the user, a CDN can significantly reduce latency and improve the load time of a website.
  • Handling high traffic: CDNs can help websites handle large amounts of traffic by distributing the load across multiple servers. This can prevent a single server from becoming overwhelmed and crashing.
  • Enhancing security: Some CDN providers offer security features such as DDoS protection, SSL certificates, and firewalls to protect websites from various types of cyberattacks.
  • Delivering multimedia content: CDNs are commonly used to deliver large multimedia files, such as videos and images, to users. This is because the files can be stored on servers across the world, so they can be delivered faster to users who are located far away from the origin server.
  • Mobile optimization: CDN can also help with optimizing the performance of website and applications on mobile devices which have limited network resources.
  • Cost-effective way to expand global reach: CDN can enable a company to expand its reach globally, by having its content available across multiple locations, without the need to invest in building its own data centers in all of those locations.


How you can use it to improve your website and obviously your online business?

There are many CDN providers are available in the market. By using them you can take advantage of CDN and grow your online business.

Here are top 5 CDN providers which you can use:

  1. Akamai Technologies: Akamai is one of the largest and most well-established CDN providers, offering a wide range of services and a global network of servers.
  2. Cloudflare: Cloudflare is a popular choice for businesses of all sizes, offering a range of services including DDoS protection and website optimization.
  3. Amazon Web Services (AWS): Amazon Web Services (AWS) offers a content delivery service called Amazon CloudFront that is integrated with other AWS services, providing a seamless experience for businesses already using AWS.
  4. Fastly: Fastly is a newer CDN provider that focuses on real-time content delivery and performance optimization.
  5. Limelight Networks: Limelight Networks is another large CDN provider with a global network of servers, offering a variety of services for businesses of all sizes.

You can outline your requirements and see which one can fit into your requirements well.


Now, let’s discuss what are the considerations you need to walk through before opting CDN for your website. Because it is better to know whole picture before diving in to be one the safe side.

Here are some considerations that you must check:

  • Additional cost: CDN services can be costly, especially for businesses with high traffic websites or those that require a large number of server locations.
  • Dependence on third-party provider: Businesses that use CDNs are dependent on the CDN provider for the performance and availability of their content. If the CDN provider experiences issues, it can affect the business’ website.
  • Complexity: Setting up and managing a CDN can be complex, especially for businesses that are not familiar with the technology.
  • Limited control over content delivery: Businesses that use CDNs have limited control over how their content is delivered, as they rely on the CDN provider to handle the details of content distribution.
  • Caching issues: CDN can cache contents, which may cause stale content to be served to the users if not properly configured.
  • Privacy concerns: CDN can collect and store user data, which can raise privacy concerns and compliance issues for businesses.
  • Extra Latency: In some rare cases, CDN can add extra latency to a request, due to the extra hops it has to take through the CDN network, before reaching the origin server.


Now, you have a whole picture what all you can do with CDN. Considering pros and cons is better idea to opt for this service.

If you are in doubt but want to boost your online business, let’s us know. We are here to help you to grow and scale your online business.

Leave a Comment

Your email address will not be published. Required fields are marked *