what is the CDN? As you know that every you are seeing on the internet is hosted by a server anywhere in the world, every site like Facebook, Twitter, Instagram, and so on every site was hosted on a server now these days the term CDN was very popular, and recently Zerodha, Canva, Upstox, Wajir, etc. These are the names you are aware of it that are they doing The company’s websites were shut down for 1 hour on 21 June 2022 and all the users were not able to use these companies’ websites from 12:04 PM, the users were facing difficulty for 1 Hour approximately, but there was no fault from these companies for this error, the fault was from Cloudfire side who provide his CDN services to those companies, and after that Cloudflare make a statement that there was an error in his CDN network that creates difficulty to the users, so today in this article we find the answer, that what is the CDN network? and more related to this topic.

What is The CDN? (What does CDN mean?)

What is CDN? Basically, CDN is a content delivery network, CDN stands for Content Delivery Network which is a group of servers that work together but are distributed geographically to provide fast Internet content with high availability to the end-users. And CDN came into existence in the late 1990’s so if you think this was a new technology you are wrong but since the 1990’s the CDN has grown to serve a large portion of the internet like web objects (you know as graphics, texts, and scripts), Downable objects (Application Software, Media Files, Documents)  the use of this technology was booming in this time because of Internet usage almost everywhere the business going online and after the E-commerce era, almost everyone wants to do shopping online so understanding the customer need company wants to give him all his service in a fast way and therefor this time companies using CDN.

CDN is a layer in the ecosystem, Internet content owners like Media companies, e-commerce companies, and Brokerage companies of the stock market (Zerodha, Angle Brocking, and Upsotocks) take services from CDN providers to deliver their content to end-users.

Is Web Hosting and the CDN same?

Frankly speaking, these are not the same you need a proper web hosting service to host your content the other hand CDN helps cache content at the network edge, which improves the performance of the website because so many websites that host on the web server struggle to perform in several geographical locations, that’s why nowadays companies opted CDN services.

CDN utilizes caching to reduce hosting bandwidth, it’s also prevented interruptions in service and provides security, it’s not about its speed and performance CDN also gives relives some of the major issues that are arrived with traditional web hosting.

What are the benefits of CDN?

If you thinking what are the benefits of CDN service, the primary benefits for most users can be broken down into these 4 different components:

1. Improving website load times – CDN distributes website content closer to website visitors by using a nearby CDN server (eg. If your website host is in the USA and the customer is from India traditional hosting takes time to transfer content to the user, but CDN does it easily because the main web server is in the USA but the CDN server is installed in India), visitors experience faster page loading times. As visitors are more inclined to click away from a slow-loading site, a CDN can reduce the bounce rates of the visitor and increase the amount of time that people spend on the site. In other words, a faster website means more visitors will stay and stick around the longer website.
2. Reducing bandwidth costs – Bandwidth consumption costs for website hosting are a primary expense for websites. Through caching and other primary optimizations, CDNs are able to decrease the amount of data a native server must provide, thus reducing hosting costs for website owners.
3. Increasing content availability and redundancy –Thanks to CDN’s distributed nature, a CDN can handle more traffic and withstand hardware failure better than many origin servers.
4. Improving website security – In terms of security, the CDN may also improve security by providing DDoS mitigation, improvements to security certificates, and other customizations.

So, these are the benefits of CDN, But one of the biggest drawbacks of this service is it is too costly so it is not for small businesses or small website owners.

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Some other features of CDN:

• The CDN distributes network traffic evenly across several servers, to make it easier to scale a sharp boost in website traffic.
• The CDN has Intelligent failover and provides uninterrupted service even if one or more of the CDN servers go offline due to hardware malfunction; the failover can redistribute the traffic to the other operational servers and makes your site always on.
• In the event that an entire data center is having technical issues, the routing transfers the traffic to another available data center, ensuring that no users lose access to the website.

How does the CDN servers network work?

Suppose you have a website that is hosted in the USA but one of your website visitors is from India the CDN server which is available in the India Datacenter region caches your website from the main server which is present in the USA and treats it as the main server from India so the visitor does not face any type loading time issue and performance issue because traditional hosting takes time to transfer content to the user, but CDN do it easily because main web server in the USA but CDN server install in India, which relives companies from some major hosting server issues and create sales.

Cloudflare and Akamai are some major companies that provide this type of service globally but as I said before this technology is costly and majorly suitable for big websites or companies only.

Do you like this information about CDN? If you have any questions regarding this topic please comment below!

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