Thanks to the growth of technology, the quality of the content produced by websites are also increased which caused a direct bulge of contents’ sizes. As expected, this caused a decrease in the speed performance of websites.    

It looks like a good option to speed up the website to supply a better experience for visitors.   

You can check out another blog article of ours Why is CDN Important for Live Streams?that you may be interested.   

What is a CDN?   

CDN is a content delivery network that ensures the content on a website is delivered more rapidly to viewers.  

With a CDN service, your site content will be cached on multiple servers distributed all around the world, thus users will be able to view your site faster than ever. These content delivery networks occur in a server group strategically located in different places on Earth. This way, your website traffic will be divided efficiently.   

The main purpose of a content delivery network is higher response speed on requests arriving on the website, and to reduce the load on the origin server.    

How Does a CDN Service work?   

Servers within this content delivery network are strategically located all around the world in geographically separated places. Site contents are cached on these servers.   

Requests directed to your server will be responded to from the geographically closest server to the client. So, these requests won’t be traveled long ways through the world, this will help speed up your response times.   

This geographic distribution provides a decrease in the origin server’s load. Site contents cached on the CDN servers will be expired at the end of a determined period, and then with the first incoming request, site content is going to be cached again and renewed. 

This means the website will be up-to-date frequently, and visitors will be viewing current content, not the old ones.   

Caching configurations can change according to the types of your site content. Frequently renewed data are called dynamic contents and on the other hand, data not much frequently renewed such as images and videos are called static contents.   

Caching on dynamic contents needs faster renewing so the durations can be relatively shorter than static contents.    


What is Cache?   

Caching provides a better-felt performance for the end-user, every visits that a website gets visitor after first visit. It is a similar process with a web browser caching the website to improve the later experience on it.   

The content cached on CDN servers or web browsers is already written on the memory so you can access it easily later than the first experience on the website. This helps your website loadings show a remarkable improvement. Web browser caches are found on your local hard disk, so it will be faster than retrieving data from a faraway server.   

This caching system provides you with a better experience while you are surfing on the net, as well as constitutes the primary mechanism of content delivery networks.    

Essentially, it works the same on CDN systems, but caching occurs on content delivery network servers and the cache files are held there.   

How is the Caching Time Determined?   

CDN servers help you to hold the site content and decrease the response time of requests. This provides fewer transactions between the origin server and the content delivery network servers. Caching offers huge benefits on performance felt by the website’s end-user.    

Caching time varies by content type. Data not frequently renewed are called static contents, this characteristic necessitates longer caching periods. Static contents don’t change as much as dynamic contents, so there is no need to retrieve data from the origin server again and again.   

On the other hand, dynamic contents have opposite properties. They change more frequently, so need to be updated more often. For this reason, to give brand new site content to viewers, dynamic contents need shorter caching periods with more often caching renewals.    

If the caching TTLs are too long, then visitors may view out-of-date content.   

Takes an Active Role on Upgrading Website Loading Speed!   

The internet is a network where contents are delivered by wires almost all around the world. The delivery and response time of a request is directly proportionate to the distance in between. The closer the request is to the origin server, the sooner the response will be sent and the faster the web page will load.   

Content Delivery Network aims to ensure that the site content is loaded in the fastest way by also ensuring the request is responded from the geographically nearest server. Thus, an increase is observed in the loading speed of the website pages.    

Many studies mentioned that the visitors immediately leave the websites that are loaded in more than 3 seconds. Therefore, website speed is affected by how close you are to your potential customers.   

The speed of a website, which enables visitors to have a positive user experience, increases the rate of conversion of website visitors into customers.    

Improve SEO Performance Using CDN!   

Your website speed directly affects your SEO performance. Websites that Google bots can crawl quickly have a higher chance of appearing on Google search results. Google tends to show websites with high site speed as sites that can provide a better user experience.   

This will help you rank higher on Google.   

Try Merlin CDN right away with $10 free credit and get higher rankings on Google search results by increasing your website speed immediately.    

Increased Cyber Security Using Content Delivery Network!   

Many types of cyberattacks can threaten your website. Using a CDN service can protect your website from these attacks and minimize the threats by responding to all incoming requests, including the malicious ones, not directly from your origin server but from CDN servers. This will reduce the risks of cyberattacks.   

The fact that the request is not directly connected with the origin server can prevent the damage of cyberattacks.   

For example, this is how you prevent a DDoS attack that suddenly creates a high traffic load on a server. Content Delivery Network servers are prepared for these types of attacks which require high bandwidth to prevent, and they will ensure that your origin server is not affected by DDoS attacks.    

Thus, you can prevent problems such as website crashes, and consequently save on technical and maintenance costs.    

What is the Difference Between Hosting and a CDN Service?   

These two concepts, which can be confusing when they come together, as a matter of fact, are two worlds apart.   

The hosting server is the origin server of your website. All the site content is stored there. A deletion to be made here will permanently damage your website if there is no backup. The content delivery network caches your site content from your origin server and keeps these cache files on its servers. Changes made on the website (origin server) will be observed on these CDN servers after the next caching.    

CDN servers cannot work without a hosting server because the main place that your website content is stored in the hosting server.   

Generally, there are 1 or 2 hosting servers, depending on the size and the structure of the website. There is a much higher number of CDN servers than hosting servers, due to the structure of the concept.    

That's why CDN is a more logical and optimized solution for the distribution of your content.   

What is the Cost of a CDN Service?   

Pricing on this service has 2 different options specific to Merlin CDN. You can start using with pay as you go or by purchasing a plan that suits your needs.   

Depending on the need, the method to be chosen in the use of this service may differ. The plan, which will be chosen according to the monthly traffic load of the website, can be upgraded or downgraded in the next billing period if necessary.    

Before choosing the billing method, you can try Merlin CDN with a predefined $10 free credit on the panel.   

Start trying now and immediately notice the performance boost on your website content!