The ergonomics, the layout, the optimization of the images represent factors to be taken into account when building a website. While taking these factors into account is known to everyone today, the importance of a CDN is not always so. The CDN “Content Delivery Network” has many advantages, especially when it comes to improving the speed of loading a page. The rapid display of an e-commerce platform can be essential to improve the conversion rate and therefore sales.

The CDN makes it possible to distribute the requested files on the planet according to the geographical locations of the user, the origin of the web page and the content distribution server.

We tell you more in this article.

CDN: What Is It?

CDN, “content Delivery Network”, means “content delivery network”, in French. It is a set of servers located in several different places, which are networked by the Internet. The role of CDNs is to quickly distribute static content from your site or web applications to the world. More and more used by webmasters, free CDNs make it possible to handle Czech Republic Email List peaks of activity without cluttering the servers. It is one of the solutions that will allow your business to gain in agility and speed.

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Each individual or professional Internet user expects responsiveness. Poorly optimized sites will therefore be strongly impacted if the loading speed leaves something to be desired. Speed ​​is more of a factor than ever when it comes to SEO. Google heavily penalizes sites that are not optimized for speed. The same is true for the loading time of the DOM (the data concerns statistics relating to the analysis of documents), representing the time required for the browser to receive and analyze the HTML code of the page. To find out more about page load times: the article about Google “site speed” reports will help you see more clearly.

Use a CDN

If you use a CDN, then you will have the possibility of distributing your content to the whole planet. When we talk about content, we think of data coming from web applications, websites and even streaming media content. Currently, the majority of web traffic is served through CDNs, including traffic that comes from well-known sites like Netflix, Facebook, and Amazon.

CDNs can be categorized into two main types of servers. These are the origin servers and the edge servers. The origin servers are responsible for introducing the content into the networks. As for the peripheral servers, they are located in several places to relay the content coming from the origin servers.

CDN: How Does It Work?

The operation of a CDN can be confusing, but when you pay a little more attention, you realize that it is relatively simple. The purpose of using CDNs is to allow your customers to access your content anywhere in the world, and in real time. The Internet user sends a request to the DNS server. The CDN requires a technology to identify the Datacenter closest to the user and whose latency time is short for him.

When the user receives the request, the requested files may not be available in cache. In this case, the CDN retrieves them and then resends them. If the requested documents are available in the cache, they are sent to your users without requesting the servers. This option allows you to manage peaks and speed up your site. In addition, if the files are outside your cache rules, the CDN directs the user’s request to your server, so that the latter receives the content of his request.

Note that the files available in the cache have a lifetime. When this expires, the CDN takes care of its update following the request for documents by a possible visitor. As operations increase, your site loads faster and the level of bandwidth usage is reduced.

To put it simply, when you are not using a CDN, the request of the user who is for example in New York will have to travel a long way before reaching him, depending on his position in relation to the place of accommodation. The lack of CDN slows down the speed of your website and therefore your ranking in search results. If your site is hosted in France and the user is in Canada, the loading speed will be slow. As you will have understood, the advantage of the CDN is no longer to prove. While it reduces latency, it is also a key point in the natural referencing of your site.

Why Use a CDN on Your Website?

There are many advantages to using a CDN, including:

Improved site loading time
The use of a CDN allows your pages to be displayed quickly, regardless of the browser or the mobile device used. Thanks to this first asset, it’s a safe bet that you will be able to reduce the bounce rate on your website. When your site is fast, visitors spend more time there, simply because they have a better browsing experience. As a reminder, among the criteria taken into account by Google to reference a website, there is of course the loading time of the pages. In this sense, using CDNs will be to your advantage.

Reduce bandwidth costs and increase content redundancy
Caching allows CDNs to limit the amount of files that an origin server must serve. This helps alleviate the costs of hosting for website owners. As for content redundancy, high traffic or material defects can cause a website to malfunction.

Strengthening website security
Using a CDN ensures better security on a website. It limits the profusion of DDoS (Distributed Denial of Services) attacks. By using a CDN, you will be able to quickly identify attacks launched against your site and block the IP addresses of unwanted people (hackers). Even if it is sometimes accompanied by other security solutions, this alternative makes it possible to limit the risks of disruption to your website.

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