What should you take into consideration when calculating CDN costs?

A growing online project cannot afford adequate scalability without proper CDN support. Such cooperation requires flexibility and a properly designed service for the recipient. Do we also know that technical and business requirements are constantly changing? The best CDN depends on your use case. There are many solutions available that may seem similar at first glance. So, when calculating CDN costs, what should we pay attention to?

Why Invest in CDN?

CDN networks have become the ideal solution to meet all these problems and meet the demand for providing users with better quality content. The CDN market in 2018 was worth almost $ 10 billion, and by 2024 its value is expected to quadruple. With the development of technology, expectations regarding the speed and performance of a website are higher, especially in mobile devices on which e-commerce offers are eagerly browsed. Google has launched a mobile-friendly search initiative, which in other words means that a mobile-optimized website (look, performance, and speed) can provide a competitive advantage in search results. When calculating your online project costs, pay attention to Basic and individual functions, Functionality, Efficiency, customer service, and prices for individual services.

Your organization’s needs

Start by analyzing your own needs and requirements. What is your website? Do you run an e-commerce store? Where are your users located? What media do you most often support your users (text, video, etc.) What’s your budget?

Knowing the answers to these questions, you will form a general idea of ​​what you need from your CDN provider and compare prices for individual services. Different CDNs may have different specializations, and it is important to choose one or more that will suit your specific needs.

Where is your target audience?

Do you know where your audience is located? Will you develop your local, regional, or global project? It is important to choose a CDN that has PoPs in the areas where your audience is located. Each PoP should have adequate output bandwidth to ensure recipients receive data and files as quickly as possible.

Also, pay attention to how CDN providers differentiate prices according to specific geographic areas. For example, if you want to deliver your content to Europe from, say, South America, not only are you dealing with geographic distance – you also need to consider the additional requirements that legal regulations impose.

Speed and reliability

One of the key elements you need to pay attention to is the speed and reliability of the CDN network. The three most important ways to measure speed and reliability are:

  • response time
  • delays
  • capacity

The first is the measure of the time the server responds to the browser request. The second is nothing but the time the host server receives and processes a query request (e.g., image). The last element is a measure of whether the content is stably delivered. The CDN service provider you choose should have an appropriate network to meet your design and business needs. The number of servers affects the quality and speed of data delivery to users. More servers mean less buffering, more redundancy, greater scalability, and so on. Evaluate CDNs for their ability to settle for SLAs, storage, and service cost.

Costs and prices of different service models

Before selecting a CDN, prioritize both cost and performance. A few milliseconds of delay can affect the user experience if you run a website or application with high audience relevance. A few hundred milliseconds make a significant impact on your project. However, maybe your site or application is not critical, and those few hundred milliseconds are invisible or irrelevant to users. In this case, you can choose a CDN that costs less and has a similar performance.


Your sites are protected in transit between the endpoint and the edge of the CDN. Features like encryption, DDoS mitigation, and compliance play a critical role in vendor selection. Encryption ensures identity, transactions, and integrity. It is also important to what extent you can manage them and implement them in your projects.


The quality of CDN support and staff directly reflects the quality of the CDN. A suitable CDN network provides teams with in-depth knowledge and extensive experience in handling cases. They should be able to give expertly managed delivery, broadcast and security services with 24/7 proactive monitoring and support worldwide. The rapid expansion of Internet services such as online video, streaming media, online music, and online games increased the need for network expansion and the need for better service quality and, therefore, adequate technical support.

CDN price calculation – what to consider?

Most CDN providers charge for their services based on the amount of data stored, bandwidth or unlimited cache availability, and various billing options. Be sure to calculate the minimum, maximum, and average latency and bandwidth values ​​during periods of regular and heavy traffic. The basic elements of the CDN within which the price calculation should include:

  • Basic and individual functionalities – your website has a specific design and business assumptions. Find out how flexible the service is approaching this and whether it has the appropriate infrastructure – e.g., CDN usage statistics (real-time) FTP file transfer
  • Flexibility – network congestion can be dealt with quickly and efficiently
  • Service availability – The CDN’s construction must not affect its overall performance and the availability of distributed content.
  • Performance – The delivery nodes must be as close as possible to the geographic location of the user as the data transfer rate depends on it
  • Consistent performance – this means high network throughput and minimal latency.

CDN storages and other key elements

Knowing how well CDN services are performing is one of the key pieces of information you may have. It includes knowing at what speed different CDN providers can deliver content. They include, among others, delivery node cache. Also, consider the CDN storage price comparison. Here, high-tech facilities require systems to be available online. That means using mass storage to store important files for software or placing company files for easier sharing. CDN disk space pricing offers various options that may vary from the length of the trial period to the type of files you are using the CDN for.

Depending on the package, the storage space may be included in the price. In case of demand, additional space can be allocated. Consider whether you will store simple documents for easy sharing. Are you going to use CDN storage as software support, or will you be amassing large files there? Use customer support and find out which supplier’s solution will be the most optimal for you.

Various forms of settlement

As part of the provider’s services, you should have access to various forms of billing. Pay as you go is a solution that allows you to pay only for the resources you use. It is useful in projects where there may be variable traffic or not fit standard packets. An additional advantage will be a unified global price list. Online support of the project, especially at the initial stage, is important, so check if you can find a uniform, low rate for each started GB of data transfer. See also what services you have access to during the service trial (usually, it is a weekly period of use.

We also know that business requirements can change quickly in short intervals. Therefore, you should have access to an additional data store. The extension can be obtained in packages or usually from a started GB of memory. We can also find a tool for checking Raw Logs, ready tariff plans adapted to the average project requirements. When contacting customer service, you will also find the option of customizing the cooperation model.

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