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What are CDN’s and how they are transforming the web

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Posted May 22, 2019

CDN is relevant to both content creators and content consumers. Today’s generation wants everything delivered fast. When they expect quicker delivery times with physical products imagine the case of digital content!

Free image via Pixabay

Consider the scenario where there are two very similar websites. These could contain similar content, images and videos. Which website do you think people would visit more often? The one that loads the fastest! This is the hard truth that every website manager should understand. While there are many ways that people use to make their website load faster, using a CDN is a method that is quick and effective.

What are CDNs?

A content delivery network or content distribution network (CDN) is a geographically distributed network of proxy servers and their data centres. A CDN doesn’t route all requests to the origin servers. There are servers all around the world that cache vital elements from the website. The next request would then receive this cached content. The proximity of the server hosted reduces the time taken to load the content. Essentially, there are local servers that are chosen depending on the location of the user to deliver the information requested.

How has CDN changed the way we use the internet?

You might find that websites load faster when you access them for the second or third time on the same device. This is because of the cache stored on your browser. With a CDN, the websites load fast even if some other internet user in the proximity has already accessed the website. It is an extrapolation of the cache storage concept on a local device on to the public internet. There are edge servers located between the origin server and the requesting nodes.

For the website owners this means their website loads much faster globally. Optimization for search is incomplete today if you do not consider CDN. This helps users gather all the information they want in a shorter duration. When you use a CDN you reduce the distance between the information and the origin of the request.

Additional benefits of using a CDN

The security of the main servers is also strengthened when a CDN is used. This is because of the edge server that is present between, shielding DDoS from attacks. The performance of your website can improve when you choose a CDN instead of traditional web hosting. Not only that but for website owners who own multiple websites, it’s the perfect way to host them all on the same server. This is a quick way to save costs rather than paying for a server for each website. It’s important to keep your websites separate. Traditionally this is used for private blog networks but can be used for regular business owners as well.

A CDN operates differently based on the nature of the content on the website. Content could be static or dynamic. Static content could be centered around an event. For static content the system addresses the needs by periodically refreshing the cached data in edge servers. For dynamic content, optimization of the CDN for tackling dynamic data can help. Dynamic content optimization gets easier when you choose a credible CDN provider. Make sure that your CDN provider has strategies optimized for static content as well as for dynamic content.

The resulting scene would be favorable for both the end users and the content creators. So, even if there is a continuous inflow of content, there would be prompt loading of websites.

Source: LaunchCDN

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