Getting started

Basic information

What is a CDN?
CDN stands for Content Delivery Network. It is a network of servers, which are located in all parts of the world. The servers can also be called PoPs (Points of Presence) or edge servers. Every PoP in our network has its own cache memory. We use this network of servers for speeding up your websites or web services. Put in a simple way, we pull static files from your own “origin” server, and cache it in our PoPs. Then, when requested, we deliver these files to your clients from our nearest edge server to them. The results? Faster website and happier clients.

How does the CDN work?
Files are transferred via HTTP. The file pull is initiated when the file is requested from the client for the first time. At that moment, the file is cached and stored on the nearest datacenter to the client. Then, when the file is accessed by some other client from area, covered by the same datacenter, the file is delivered only from the cache. You can decide how long we should keep the file cached by setting up cache-expiry in CDN settings. If you have “Cache-Control: max-age” or “Expires:” HTTP headers in place, we will give them a priority instead. So ideally, you serve all your static files only through our infrastructure, saving you technical and financial resources.


CDN77 has pay-as-you-go pricing model; no monthly fee and no commitments.

There are no hidden fees, you only pay for the outgoing traffic, which your visitors consume by downloading the content.

Tip:    Check the pricing comparison with other companies here:

We deduct the money from your prepaid credit for data your visitors actually receive - byte by byte as your traffic goes. Price per byte depends on the location of the server carrying out the request. We divide our data centers into 3 different price zones. Selecting a different number of servers in the same price zone will not result in higher costs.

Example:     If your visitors download 10TB from EU ($49/TB), 1,5TB from Asia ($125/TB) and 300GB from South America($185/TB)
you will be charged 10*$49 + 1,5*$125 + 0,3*$185 = $733.

You have full control over your data center selections and expenses in our CDN Resource settings.

Tip:    When you activate / deactivate the locations you want to use, remember to confirm the selection by clicking on Save changes
at the bottom of the screen. The selection is individual for each CDN Resource.

We accept payments in USD, EUR or GBP and via credit card, PayPal or wire transfer.

For more detailed information about pricing, please visit:

Get started in 3 steps!


1. Access our sign up form at
2. Fill in your name, email address and password
3. Start your 14-day FREE trial period by hitting the button “Create my account”

You get 14 days to fully test our service with no strings attached! The trial includes 50GB of CDN Storage space and 100GB traffic, all completely free. No credit card required.

First CDN configuration

First, you need to create a CDN Resource. Just click on the Add New CDN Resource button to proceed.

1. To begin, you need to set an origin. It can be your website URL, IP address of your server or CDN storage.

2. Next, you just need to set a label for the Resource, which is a name for its easy identification in the client section.

3. When you are ready, hit Create CDN Resource button

CDN Storage is a place where you can keep your static content, and our CDN Edge servers can fetch those files instead of storing them on your servers. It is an ideal solution if you want to deliver large files, or the connectivity of your server is limited. How do I set up my CDN Storage.
First 50 GB of the storage capacity is for free. You can find pricing for the higher capacities here:

Your CDN should be up and running in less than 15 minutes after creation. You can check by accessing the CDN URL of the Resource (e.g. and it will show your website, when the Resource is ready.

CNAME DNS configuration (optional)

CNAME is technically an alias for a different URL, so instead of using the CDN URL looking like “” for your implementation, you can just use something like “”. In order to make it work, you need to do these two steps:

1. On our side: Add CNAME in our resource configuration

2. On your side: In your DNS (Domain Name System) control panel, create a new CNAME record, following the instructions displayed in the window     “Your CNAME has been created”, which pops-up right after hitting the “Add CNAME” button. You can display this page again, anytime you need,
    by clicking the Instructions tab.

Example: IN CNAME

As we do not have access to your DNS server, please contact your domain provider in case you are not sure, how to configure the DNS of your domain. All information you might need is located in the Instructions tab.

Please note that DNS changes could take up to 24 hours to fully propagate.

Integration with your website

This is the very last step of the CDN integration.

The goal of this change is to replace all links of a static content on your website to CDN77 link (or CNAME if you set it up in the previous step).

Here is an example of the CDN integration.


<img src="" />

with CDN URL

<img src="" />

or with CNAME

<img src="" />

In case you have one of the following popular CMSs, you can check our simple step-by-step guide to integrate CDN77 with your CMS

vBulletin integration

Contact CDN77 Support

Are you lost? Do you have any additional questions?

Our friendly team from Technical Support is online all the time eager to assist you.

Feel free to reach us 24/7 on the live-chat or on our support email

Our primary language is English; however, we can address your inquiries via email in Czech, Spanish, Russian and French.

Check out our knowledge base