CDN is an abbreviation for English Content Delivery Network, and the Turkish language is known as the "content distribution network". CDN is a network of content distribution servers, meaning that static content (a constantly unchanging and often non-database-related content) belonging to a web site is delivered from the nearest CDN server to the web site.
When you start to receive a CDN service, the CDN network copies static content from your site to its own servers and communicates this content to visitors through their own servers. Thus, the static content reaching the user from the nearest location is transmitted to the user faster. If static content is often thought to be image, audio, and video content (the content that occupies the most space), it is likely that there is a significant increase in the speed at which the website opens.
In particular, if you have a website that takes visitors from all over the world, it is almost imperative that you are using a CDN network with servers in various locations around the world. Because the speed of connection between some countries and your country can be slow. In such a case, the business can only turn into a situation that offers far more advantages than pulling in content from the nearer server.
On the other hand, in most CDN services, the static content is compressed (optimized) to the user, which is another factor that increases the speed.
Below you can see the locations of Cloud Flare's CDN servers as an example:
Here are the advantages of using CDN:
Your site speed up. (With reason of location and compression technologies) to get the most from abroad ... For site speed SEO is also an important factor, your website increases your SEO visibility ie search engine success. Your site's traffic volume and load are reduced. For this reason, both hosting expenses are reduced and your server responds more quickly to your requests. In order to use CDN service, you have to put your DNS on CDN. This will be your CDN service for possible DDOS attacks that your site may encounter. For this reason, CDN services have a lot of protection against DDOS attacks and they prevent such attacks from reaching your site. For some CDN services, further security options are available.
Which CDN Service Provider Should I Choose? You can choose your own service by reading CDN services and the explanations about these services in the following blog post.