What is CDN? And why is it important for Blog and Website?

what is CDN
Written by Vishal Singh

If you have a blog or website, it is very important for you to know about the CDN, because without it your site or blog remains incomplete. If you want to increase the speed of your blog, then what is your CDNs? And why is it important for Blog and Website? It is very important to know, because you can not increase the speed of your site without it. Here we are talking about what is CDN? And why is it important for Blog and Website?

If you ever used a speed testing tools to test the performance of your site, then you would know that all speed testing tools like GTmetrix , Google Page Speed & Pingdom Tool are good for improving the performance of your site. Recommend using CDN (content delivery network) .

If you are new in blogging, and you do not know about CDN, then you will have to complete this article. What is your CDN ? And why is it important for Blog and Website? I am going to explain in this article.

What is CDN ?

If you want to understand the CDN (content delivery network) , see as the name suggests, content delivery network or we can tell directly that we have a network that delivers content to many data centers. Due to this, our site gets the speed .

The main reason for using the CDN (content delivery network) is that our site can get good speed and security, so that we get more visitors and our site ranks.

How does a CDN Work ?

Whenever we take any web hosting, its location is a place where our site does a faster work while surfing from that location, but when we visit it from another location, the speed of our site is greatly reduced. We use the CDN (content delivery network) to increase its speed to every location. Because the CDN (content delivery network) is a very large network that consists of different data centers in the multiple geographic region .

Without a CDN

In this image, you can see how our site is working on CDN, which is directly visited by our server from our origin server.

without CDN
without CDN

Do you know how optimize your website speed with image optimization ? By this your website will get good SEO score. Read full article Here ….

With a CDN

If you use a CDN (content delivery network) , then you can see that the data on the Origin server is served by the CDN to which your site speed is very fast.

with CDN
with CDN

Do CDNs Store Your Content?

In CDN, some files from our site are stored, which speed up our site, and for these files visiters do not need to know about our server, as all those files visiters are only allowed to access CDN. .

  • Images: PNG, JPG, SVG, GIF, TIF
  • Stylesheets: CSS
  • Javascript: JS
  • Video and Audio: FLV, HLS, MP4 (HTML5), MOV (QuickTime), WMV (Windows Media), MP3 and WAV
  • Web Fonts: EOT, TTF, OTF, CFF, AFM, LWFN, FFIL, FON, PFM, PFB, WOFF, SVG, STD, PRO, XSF, and more …
  • Other File Formats: HTML, JSON, PDF, DOC, PPT, XLS, EPUB, ODT, ODP, ODS, TXT, RTF, ZIP

Why do we need a CDN (content delivery network)?

Your site should be small or bigger you should use the CDN. If you use the CDN, then you have a lot of benefits. In the meantime I have mentioned above why do we need the CDN? But here we are going to extend the detail in which we will understand everything well.

1. Performance

performance from CDN good

The performance of our site from CDN gets very good, due to which more visitors are present on our site and ranking of our site also becomes quite good.

2. Security

best security with CDN

Our site is protected by CDN because the CDN does not allow our visitor to go to the original server, which keeps us from our site DDoS attacks .

3. SEO Improvement

SEO improvement with CDN

As you know, site speed is a major contributor to renting a site, and if you use a CDN, then your site is optimized by which your site speed is increased greatly. The site’s loading speed is good for the good renk in Google.

4. Reliability


If you use CDN, then one of the biggest advantages of you is that your site is available online and available . Because it shows your site to the visitor near the visitor, but if they are not available, then they show your site to someone else nearby server.

5. Lower Costs

CDN cost

If you have purchased web hosting, which you have bought a small plan, in which you got less bandwidth, then you can reduce your bandwidth significantly by CDN. Which do not require expensive plan leans for hosting you. Which you have some money saving .

6. Conversion Rate

conversion rate

A Fast Website Increases your Conversion Rate If you use CDN to increase your website or blog speed by up to 2 seconds, then you increase your conversions rate to 14%. Because , according to Kissmetrics , if your site is slow at 1 second then your conversions ratedecreases by up to 7%.

7. Bounce Rate

CDN reduces bounce rate

If the speed of your site is very low, then many visitors do not wait too much and they get back to your site, which increases your Bounce Rate .Which has a very bad effect on the ranking of your site. But if you useCDN to increase the speed of your site, then you can greatly reduce yourBounce Rate .

Which CDN should we use?

Well there are a lot of CDN providers in the market which offer you both free and paid services, but here I will tell you about those CDN providers which are more popular as well. If you want to use the CDN of these messages, then it is important that you have broken information about everyone initiating them.



This is a Pro CDN, through which you can give both your site a lot of speed and security, in it, your Network, Security, Control, Content Delivery, Web Application Firewall, Managed DNS, Monitoring, EdgeRules, EdgeSSL, Origin Shield & DDoS Protection Jesse offers the PRO service.

2. CloudFlare


Whenever you use Cloudflare, you have to add Cloudflare’s Name Server to your domain, after which any traffic that comes to your blog / website afterwards, all traffic has to go through Cloudflare. Which gives your site the speed and security. I use FREE CloudFlare on my site.

3. Keycdn


KeyCDN is a high-performance Content Delivery Network (CDN). Our global delivery network instantly speeds up your websites,

In it you get lots of advanced features, which make you keep both the speed and security of your site. You can take a month’s free trial, if you like it, you can keep it regular. 

In the end,

What is your CDNs?And why is it important for Blog and Website? If you like it, then share it with your friends on social media and if you have any questions or suggestions, then you can tell us in the comment box below.

About the author

Vishal Singh

A tech lover by the mind and a passionate blogger by heart ❤️. Founder of HBJ MEDIA (A tech and Blogging blog). Life Motto: Attempt the impossible in order to improve your work.✌


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