Jon Granados
Jon Granados More Posts
CEO · 41 posts
1 year ago
What Does a Content Delivery Network Do?
What Does a Content Delivery Network Do?

If you’re interested in optimizing your company’s website to improve page load speed, boost security, or lower your bandwidth cost, using a content delivery network may be the perfect solution. Akamai, CloudFlare, and other content delivery networks act as the midpoint between the origin server that sends the content and the individual user who receives it. 

What Is a Content Delivery Network?

content delivery network, or CDN, is a group of servers that work together to transfer online content to computers and other devices within a particular geographic area. Good content delivery networks increase the speed and reliability with which HTML text, photos, videos, JavaScript files, and other elements of websites can be viewed by users. By transferring data from the origin server through Internet exchange points, or IXPs, content delivery networks serve as the midpoint between the content’s origin server and the network of the user who loads the webpage.

Global connections shown through a content delivery network

Supporting Concepts of Content Delivery Networks

Points of Presence, cache servers, and various types of computer memory work together to support the full functionality of content delivery networks.  

Points of Presence (PoPs)

Point of Presence, or PoP, is the final step in the transfer of content from the origin server to the user. It connects a user to his or her internet service provider (ISP) by using a modem, router, or similar device. 

Cache Servers

cache server stores information from previous network use, which increases the speed of the same page loads in the future.  


Solid-state drives (SSD), hard disk drives (HDD), and random-access memory (RAM) are types of memory that are used to permanently or temporarily store information on your computer. 

Types of Companies That Benefit From Content Delivery Networks

Although using a content delivery network can be useful for a wide variety of companies, they are particularly beneficial for companies that rely heavily on complex website features. Video content, livestreaming services, and high-traffic online shopping sites often have more problems functioning correctly than simpler websites that consist mainly of text and images. Companies that provide entertainment, gaming, and shopping services, such as Netflix, Twitch, and Amazon, can benefit significantly from the assistance content delivery networks provide in keeping their sites working properly. Zoom and other sites that are used to livestream classes, meetings, and other events have also seen a significant growth in site traffic in the last few months, which content delivery networks can help to manage. 

Advantages of Using Content Delivery Networks

Using a content delivery network can benefit your website in a variety of ways, such as improving the functionality and security of the site. Here are four of the most significant benefits to using a content delivery network!

Technology connections and a content delivery network concept

Improve Internet Speed

One of the main advantages of using a content delivery network is its ability to speed up your internet service to decrease the amount of time it takes to load web pages. Because each content delivery network serves a particular geographic region, website content does not need to travel as far at one time as it would if it were sent directly from the origin server to the user. They also use file compression and minification to reduce file sizes, as well as optimize connections for sites that utilize TLS and SSL certificates. By keeping your page load time-optimal, you can avoid losing visitors that become frustrated waiting for slow websites to load. 

Improve Website Security

Content delivery networks also improve the security of your website by optimizing security certificates with DDoS mitigation improvements. Keeping your website secure protects your data and minimizes the problems that visitors to your site may encounter. 

Reduce Bandwidth Costs

Bandwidth costs are often higher than website owners would like them to be, particularly those that utilize videos and other features that require high amounts of data to function properly. Using a content delivery network can lower the cost of running your website by using caching and other optimization techniques to reduce your website’s data usage.  

Increase Content Availability

Significant spikes in website traffic can quickly slow down or even crash the site. Multiple content delivery networks generally have a much easier time handling high traffic than origin servers. By using a content delivery network instead of forcing all of your visitors to access your site through a single origin server, you can reduce the likelihood that your site visitors will experience significant service disruptions and increase the reliability of their access to your website content.   

Disadvantages of Using Content Delivery Networks

Although the benefits of content delivery networks generally outweigh the drawbacks, there are a few disadvantages to consider before deciding to use a content delivery network for your website. 

Requires Extra Step to Transfer Content

Using multiple servers is usually an advantage of content delivery networks, but it creates an extra step that is vulnerable to failure. A problem with the content delivery network can prevent users from accessing information even if the origin server and the user’s network are functioning correctly.

Potential Security Risk for Sensitive Information

Storing certain types of sensitive files on a content delivery network may not be secure because the network has access to multiple servers. However, the overall increased security of the content delivery network minimizes this risk.  

Extra Cost Per GB

Using a content delivery network adds approximately $0.10 per GB to the total cost of your bandwidth. However, this initial extra cost is often canceled out by the money you save with the content delivery network’s data optimization services.  

Using a content delivery network can be a simple and cost-effective way to increase the performance and security of your company’s website. At SADOS, we are here to help business owners throughout Virginia, Maryland, and Washington DC solve both large and small IT problems to make sure their websites represent their companies in the best possible light. Feel free to contact us if you still have questions about whether a content delivery network is right for your company or to explore our other services. We are always happy to help!  

Jon Granados
Jon Granados
CEO · 41 posts
1 year ago
Jonathan Granados is the Chief Executive Officer at SADOS. Jon owes his success to a ladder of visible clients throughout his career in IT and network security. He's worked with clients from Spotify to the Department of Defense, and has a proven track record to getting the job done.

You might also like...

What Customers Say
It's about more than technology, it's about a dedication to building impactful relationships
Ready for anything, we provide dependable IT support, both on site and remote through our 24/7 help desk and chat support. We maximize workforce potential in companies of all sizes - building success stories through true relationships with each and every one of our clients.

After having many internet/wi-fi and phone issues for years at our office, SADOS has resolved them and made our workplace more efficient. We are so pleased with their commitment to finding the real problems, and their solutions to fix them. Dominick has been awesome – very responsive to our calls, and not happy until we’re happy. Thank you SADOS, Jon, and the team!

Cindy Schlossnagle
Keller Williams Columbia

When we moved our environment into the cloud we worked closely with SADOS. They were easy to work with and very responsive to our needs. They helped us navigate the intricacies of the AWS and perfected our network environment. Anyone looking to move their infrastructure to the cloud would be well-served by working with SADOS.

Donald Koch
South Mountain Creamery

Enforme used to host our own data-center. In doing so we had power costs, generator costs, cooling costs, hardware/warranty costs and many other costs that come along with hosting your own equipment. Now we have POP sites all over the world and double the resources at half the cost thanks to the cloud. Our cloud migration was one of the best decisions we could have made thanks to SADOS.

Eric Delente
Enforme Interactive

SADOS has been a great help. We contacted you to help migrate the Department of Justice, Office of Justice Programs to AWS Gov. Cloud. Their knowledge with cloud technology was an extreme help during this project. They prepared and created the infrastructure for this environment to allow future growth, fail over possibilities, and load balancing scenarios.

Chris Garver

Solid, experienced IT cloud transition partner specializing in moving traditional infrastructure environments to AWS and Azure. SADOS has the expertise and know how to help your company assess your current traditional infrastructure, formulate a transition plan and execute. In many cases, they can help you save thousands in monthly data center & support costs.

Walter Logue

SADOS’ willingness to provide immediate support during a dire time was a godsend. Their team is not only genuinely invested in the success of their customers, but also highly qualified and more willing to do what it takes to provide a broad range of IT support services compared to others. They genuinely care about my business. All the other vendors I spoke to only offered to set up an appointment and wanted to discuss pricing right away. SADOS was the only company willing to do what needed to be done right away without hesitation. is now where it needs to be thanks to SADOS.

Chris Kirksey
Direction Inc.