Content delivery network is an extreme-distributed platform for servers that helps to minimize delays in loading of web page content. CDN reduces the physical distance between web server and the end-user. It helps users to view content at exact high quality without any delay. Without CDN, content origin servers will respond to every single request. This will result into significant high web traffic and consecutive request. High consecutive load could result into high web traffic spikes. By closing end-user request in place of the origin and in closer physical and network proximity to the end user. CDN offloads web traffic from content servers and boost the web experience. CDN benefits content provider and its user.
Over half of the internet’ web traffic
deliver by content delivery network. The goal of the CDN is to reduce latency
time. They delay between submitting a request of web page and web page that
completely loads on end-user device. By reducing the physical distance that
request has to travel. For instance – an Indian website visitor wants to view
content of US server. Without CDN, user will experience poor loading time if
this request has to travel across different oceans. But with CDN, it will store
cache version of website content in different geographical locations around the
world. This is known as points of presence (POPs). These POPs will contain
their own caching servers and will be completely responsible for delivering
website content in requested location.
User-agents that runs on web browsers make
requests for the content required to render web pages such as HTML, CSS, images
and JavaScript files. Most CDNs will request for the content that will cause
end user to be mapped to located CDN server and server will respond to cached
version of the requested files. If it fails to locate requested file, it will
look for the requested content on the other servers. IF the requested content
is unavailable, CDN will act as request proxy to origin server and store the
fetched content to serve future requests.
CDN can deliver variety of content in fact
it can deliver incredible content that includes HD quality and 4K content like
– video, audio and software’s. Data records that contain financial and medical
information and much more. Potentially any data can be delivered through CDN.
Why to use CDN?
CDN offers easy way to increase the speed
of website and lowers down the latency. They are very essential for the fast,
efficient and secure delivery of content to users around different parts of the
world. This content is not limited to caching on the website content. CDN can
also comprise 4k and HD quality content. Website visitor spans growing shorter
by the day. It is imperative to deliver the content as fast as possible. As
more business organization go online. More world comes together on the internet
to connect, share and shop. Because of high demand now content providers are
facing an increasing array of challenges such as – different types of content.
Adjusting content for different devices. The inherent capabilities of CDN means
that providers are uniquely positioned to help businesses overcome. For over 20
years, CDN have formed a backbone of the internet. Delivering content for
retail, finance, healthcare and many other businesses.
Conclusion: -
Thus, increase in different websites also
demanded CDNs to fully functioned. Because CDN can carry high quality data. It
has become necessity for the internet. CDN can respond quickly If you’ve finest
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Source: https://www.htshosting.org/knowledge-base/technology/105/content-delivery-network-cdn
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