At the moment it is important that if you have a website, it is positioned in the Google browser for search. But it is very true that it has become very difficult to make it happen because there are other websites that are competing. To improve the loading of websites is essential to have a CDN, for this reason this article will help you understand what a CDN is.
What is a CDN?
A Content Delivery Network or CDN is a series of web servers located in different geographic locations that include copies of content hosted on other servers. What it does is cache le information that is not essential to update regularly, such as JavaScript, videos, images, PDF, CSS.
In short, the content that will not be innovated is that static information and being able to deliver it to the user directly and quickly. So what you want is to reduce the distance between the server sending the information and the guest downloading the files.
Let's take an example, let's imagine we have a website visited daily by millions of users from all over the world, with a server in Portugal. But you want the answer to Latin America's web search to be faster and in less time.
So you'll need to use a CDN in a Latin American country, so you can get a quicker response. In this way, users who are located in that geographic area will be able to access to the website owned by them quickly and smoothly.
Role of a CDN
Thanks to the Internet, it's possible enter a a large amount of computer content with one click on our computers or mobile devices. And in view of the developments that are already seen in technology today, great efforts have been made to make information available to many.
Among these advances is that the user can access the web they are visiting faster from anywhere. As mentioned in the previous section, a CDN is a series of servers located in different parts of the world. In this way, when someone accesses the web they are looking for, they will locate the closest server, helping them to quickly enter the page.
Two ways a CDN works
Next, we show you three ways of how a CDN works, these three situations that we will illustrate are a totally reliable guide.
- The customer enters from any part of the earth.
Request a request from the DNS servers, i.e. the server you are affiliated with, if the page you are requesting has a CDN, this redirects the request to the PoP CDN closer to the user.
Instead, we want to highlight that the term PoP CDN is the name applied to servers that hide the information within a CDN. They help the user visiting a specific web page to locate the fastest connection, far or near.
- Information between CDN and hosting server.
After making the request to the CDN, you may find yourself in 3 situations, here we explain it to you in a detailed and simple way.
- The requested information is not available in the respective PoP cache to the CDN, mainly in this case, the requested content will be fetched from the hosting and diverted from the PoP to the user.
- Required files are available in the PoP cache, which means that the content will be forwarded without the need to use the servers on which it is hosted, thus releasing some of the load.
- I files or websites that the client requests are dynamic or are excluded from the configured cache rules, so the CDN diverts the request to the server, sending the content to the user.
This way a CDN works and works, this allows your website to run faster and easier for users. We hope this article will be of great help to you and that you can position your website with the most visits on Google.
