What is CDN and the Role of Content Delivery Network in SEO?
A content delivery network is a geographically partitioned network of multiple data centers and servers with the aim of providing high-availability and flexibility to its users, both enterprises and end users. CDN helps to provide a more cost-cost-effective and scalable solution for web application deployment in today’s dynamic business environment.
With the introduction of a central data store and servicing platform, the need for expensive infrastructure and personnel is eliminated, and consequently the overall cost of deployment is reduced, leading to significant cost savings. The central data store facilitates easy application deployment across multiple locations and network adapters with support for a wide variety of deployment options like automatic bridging, layer 2 multipoint bridging and unicast bridging, as well as failover and standby solutions.
CDN provides guaranteed services at an affordable level by reducing the physical and logical resources required for Internet connectivity. By improving locality of servers and better addressing of routing constraints, CDN technology ensures optimal gains for end users, especially those who have to deal with mission-critical applications. In addition, with respect to the reliability aspect, CDN technology offers guaranteed latency over existing copper networks or WAN connection. Using CDN technology also enables faster application response times by reducing the influence of server traffic and downtime.
In essence, a CDN functions as a virtual link between two edge servers. Each edge server carries a copy of the requested information, which is then passed on to the client computers. The client computer, in turn, queries the destination for any relevant data that it requires and passes on the requested data to the content provider, which then delivers the requested data to the actual user, irrespective of the physical location of the user.
When talking about the CDN, one would often hear two words “CDN” and “layer”. But when it comes to understanding how CDN works, these two words are not used. Instead, what you would hear is “CD Network” and “CD server”. But as you know, a CDN is a layer upon a layer in a data network that works together with a layer which can be further subdivided into sub-layers.
If you are thinking of having your own business at home, then you have probably heard about CDN already. Many people are still unaware that such a service exists and how they can benefit from it. This article will try to explain all about CDN and how you can take advantage of this technology. So better read on.
How does CDN work? We all know that a computer network is composed of a number of computers connected to each other. Each of these computers have an IP address which is a point to which they can connect to other computers. Each of these computers can store data and each of them can send the data to any other computer in the network. But the IP address would be saved in the network itself. And this is how IP addresses are assigned to each computer in the network.
So, whenever somebody would type in the keyword “CDN” in search engines like Google or Yahoo, the first result that would show up is a website which provides CDN services. These websites would either be a server or a cloud-hosting provider. The server acts as the hub for all the other CDN servers. This is why the main advantage of using a server is the fact that you do not need to purchase and manage any additional hardware. Therefore, if you want to start a business and you have enough capital to buy your own servers, then you can do so.
If you are not in the position to do so, then you would be better off with a cloud hosting provider instead. The reason for this is simple: with a server hosting company, you would only pay for the space that you utilize. Therefore, you would be able to save a lot of money and still keep your website online.
You might be wondering how a person could start his own CDN business. The process is actually very easy. If you already have a relevant technical skill, then you can always try building your own private CDN network for the purpose of cashing in on the opportunities it brings. However, it is highly recommended that you look for a hosting service provider who is already popular and has plenty of pre-existing market. It would be easier for you to negotiate with them since you know that you are getting a quality service at a very affordable price. Once you have signed up, you will be able to enjoy the benefits of being a member of the most successful commercial internet hosting network today.