CDN is short for Content Delivery Network and is a combination of networks and servers placed around the globe for faster delivery of your data. It would consist of Entire websites, or some volume of web data that can be cached (duplicated/saved) on each of the servers that are located closer to the end end-point (where distance is applied to the viewer and the content would be delivered as close to that location as possible). Reducing this distance between the end user and the data, reduces the time and increases efficiency that is required to deliver data across the web.


DDOS – distributed denial of service attack is a common way of making a network(s) unavailable by saturating it with requests. Some of these can be mass requests to log into the system or something even more simple like a PING request.

CDN Cache

When your data is cache, it means you have copies located on other servers to deliver content more efficiently. The content can be requested by all visitors of your site and is also routed to this point. Your content will be refreshed automatically by the value declared in the TTL.


DNS or Domain Name System, is the method by which it re-routes domain name URLs (like into a way for computers to find the site. It’s more or less like a post office where data would interact with the DNS to find the correct location where the site resides and the DNS tells the server where to go. A post office will know where everyone lives or where they are located.


Data origin pointing to Anycast DNS routed in a specific manner. It will associate your visitors and will trigger an automatic response that will direct the visitor to the nearest PoP.

Edge Group

An Edge Group is a group of PoPs (Point of Presence) associated with location or price. A client’s edge group is responsible for providing copied content from the origin server to each of the locations specified in the Edge Group which will serve content to visitors closest to those regions/locations.

Response Time

The duration of time between sending the request and receiving the return of data. Ie. visiting a website and waiting for the content to show up on your web browser.


A cache is a record or copy of static content hosted on a server. It will retain a copy such that it can deliver this content in a more responsive time to all it’s nearest users making the request for data.r.


A point of presence (POP); are copies of data that is spread across regions. Each PoP has its own copy in order to meet the requirements of local users.

Data Packet

A Data Packet is a data request that travels from a device through a network to get to an end user (or another device), and back again. For example, when a user clicks a link to load a page, that user, in simple terms, sends a data packet request for the necessary data to load.


When you have used up all your data resources, the caching functionality is automatically disabled. There will not be any loss of service, but your CDN does drop off, relieving your ability to utilise the CDN network, In shortyour web data will return to its previous performance of it’s origin. Basically you fall back into non-CDN mode.

Static Content

Static content is content that remains the same with no changes made. This would be the opposite of Dynamic Content which allows changes to be made and updated automatically whereas if data was changed in a static environment, one would need to purge and replace data.

Domain Link

A domain is linked to when the “A” record in the zone file points to the IP Anycast provided on subscription to CDN service. This change must be made in the customer account of your domain provider.

Dynamic Pages

A dynamic page is when data is variable and changes as opposed to static content where all data remains the same.

Static Page

A static page is a generic page that is the same for all users of the web application. The data is requested without changes.

Configuration Rules

Configuration rules allow you to manage the caching and the TTL of your content.


The time needed for data to transmit between devices sent and received it.

Page Loading Time

The time needed to deliver the user with all the content on a web page.


Time To Live is a DNS feature that enables you to define the time that data is retained in the a cached location.