Website or WordPress Blog Owners are Curious about the word CDN( Content Delivery Network ). What is CDN? Why everyone is discussing CDN and why the hell it is so essential for a website? Whenever anyone discusses speeding up sites, he or she talks about CDN. So here we are going to explain what is CDN and why it is useful?
What is CDN(Content Delivery Network)?
CDN stands for Content Delivery Network (a.k.a content distribution network) which is a network of servers that delivers cached static contents from websites to users based on geographic location of the user.To understand why CDNs are so widely used, you first need to recognise the issue they are designed to solve. Latency is the annoying delay that occurs from the moment you request to load a web page to present its content appears onscreen.
Pretty confusing eh? Let’s break it down into simpler words.
How CDN Works?
When a user comes to your blog or website, your domain redirects them to your web host’s server (i.e., Hostgator, Kinsta and others). Now suppose your web server is in California, USA. So, every user on your website is accessing one server to view your Blog. However, if the user is far away from my California data centre, there will be high pings and latency, and thus, it will take much time for the site to load. Now if you have a large volume of traffic, then you can overload your server which leads to a slow loading site or an even server crash. This time is where CDN comes in handy because it is a network of Servers and Datacenters, but most importantly these Servers and Datacenters are spread throughout the world.
Now, a CDN has Datacenters in different geological locations (like CloudFlare has 150+ Data centres) spread over the globe. After you implement CDN to your Blog when users come to your blog request goes to their nearest Datacenter of CDN. For example, a user is trying to access your blog from Durham, England. Your files (images, static files) are served from the nearest data centre of the CDN which may be London.
CDN reduces pings and latency, and your site serves faster.This is one of the Prime reason for using CDN.
Why Use CDN For Your Blog/Website?
(Image Credit KeyCDN )
If you read the above section, then you can see that having a CDN can make a significant impact on your site. Below are some of the benefits that we have seen on our website by using CDN:
- Speed – Once we started using CDN on our site, the site got faster.
- Crash Resistance – CDN allows us to distribute the load across multiple servers instead of having 100% traffic to our primary server. Thus making our Website server less likely to crash.
- Improved User Experience – Since we started using a CDN, we have noticed a decline in bounce rate on our site. Furthermore, we have also seen increased in page views and numbers of pages viewed by each user. So apparently a fast website means improved the user experience.
- Improvement in SEO – Google has stated that faster sites go to rank higher in Search Engines. We noticed our site ranking higher once we did the optimisation on our website.
1. Google Ranking
Google has stated that page load time is one of the search engine ranking factors. By using a CDN, you can speed up your site to a great extent.
Additionally, it will also help you reduce the bounce rate (which is also useful for Your Site SEO and Income).
For any website or blog, the faster it loads, the better it performs.
2. More Conversions and Sales
Because your site loads faster, your clients and readers will be much delighted.
Where there are happy clients, there are more sales.
I am willing to bet that you will become pretty irritated to do business with someone whose website took a long time to load.
3. Handle More Traffic
Whenever your blog posts go viral, your server gets a considerable amount of traffic. Your Website or WordPress blog starts loading slowly. Many times, your site crashes and gives errors like: “Internal server error” or “Database error.”
With an excellent content delivery network service, you can quickly minimise such down times, and your site can handle a lot more traffic.
4. Website Security
Cybersecurity is all about managing access to your protected perimeter. Ideally blocking all threats before they can even set foot on your doorstep.
A CDN is ideally situated to act as a virtual high-security fence and prevent attacks on your website and web application. The on-edge position also makes a CDN ideal for blocking DDoS floods, which need to mitigate outside of your core network infrastructure.
5. Reduce Hosting Cost
When you are using VPS or dedicated hosting, or any limited bandwidth hosting. Using a CDN will reduce your costs by a considerable margin.
CDNs are way cheaper than Web hosting because it serves files from the nearest location.
If You still wants more details about CDN you can watch this Video:
It does not matter how small or significant your site is, using a CDN(Content Delivery Network) service will surely help you boost your website’s load time and server response. The only hard part for newbies is setting it up.