What is CDN and How It Helps to Speed Up the Website?

In this article, we will discuss a reliable step that can be taken to speed up any type of website i.e. by using CDN. Here, we will describe what a CDM really is, how does it work and how will it help you to improve the loading time of your website.

So, let’s get begin:

What is CDN?

A Content Delivery Network (CDN) is a geographically distributed group of servers that work together to deliver the static contents of a website (images, CSS, JavaScript, and videos) from the closest location. It is a popular service network and is used by many popular websites like Facebook, Netflix, Amazon, etc that contains a large number of traffics.

How does CDN work?

A CDN stores a cached version of its contents in multiple geographical locations named PoPs (Points of Presence) or data centers that minimizes the distance between the visitors and your site’s server. With each of these PoPs containing numerous caching servers that deliver the contents to the visitors from its proximity. So, through CDN your contents will be cached from many places at once and will provide broad coverage from the nearest data centers. Therefore, the time taken to handle users request and delivering a response decreases.

How does CDN help to speed up your website?

Since CDN stores and contributes multiple content types from the shortest locations, your website resource consumption rate will be low. Therefore, your website will provide better performance on its loading speed and enable your visitors to quickly browse your website.

How much will CDN costs?

Most of the CDNs are 3rd party paid service and can be ranged from expensive, high-end setups for enterprises to a cost-effective small/medium scale website oriented solutions.

The total cost of CDN depends on the bandwidth, region reach, SSL securities etc. It does not have prohibitive cost and can be easily accessible to the website owners of various budgets.

Some of the Famous CDN Available to Speed Up Your Website:

1. Akamai

Akamai is globally known for speeding up networks and connections. They have a strong infrastructure that speeds up the websites and makes things better for online users. It works in big brands and large businesses in general. It is commonly used by websites with huge traffic page or well established brands.

2. MaxCDN

MaxCDN is a Los Angeles, California based company founded on 2009. It has a fast servers and a big community of users/webmasters all around the world. It provides one of the fastest response time and a flexible pricing models. Their CDNs are used for WordPress, Joomla, Drupal, OpenCart, and PrestaShop applications. It delivers the stateless routing for one to nearest content delivery over multiple 10 Gbit/s connenction. It is mostly used by blogging websites and gaming platforms.

3. Imperva Incapsula

Imperva Incapsula is a cloud based application delivery platform. It uses global content delivery network to provide web security, DDoS protection, load balancing, and failover services to the clients. It is stationed Redwood Shores, CA. They offer CDNs paired with the web security combined with the balancer technology for handling traffic between servers. The company works for the popular websites like Moz, Wix, SIEMENS.

4. Rackspace

Rackspace was founded in 1998. It is a cloud computing based company based in Windcrest, Texas. It is unique for its cloud file storage system and “pay as you go” business models. They provide a secured environment for hosting a large number of files and static websites. It is provides a well-protected infrastructures for their customers.

5. Cloudflare

Cloudflare is one of the fastest growing Saas providers in the security and performance spaces that encompasses DNS, CDN, WAF and DDOS mitigation. It operates the most efficient DNS service and provides performance, security and access inside the China network to over 6+ millions websites, applications and APIs. Its office is located in San Francisco, London, and Singapore, and is backed by US $180M in funding from Google, Baidu, Microsoft and Qualcomm. It offers self-service or enterprise plans that is suitable for small, medium and very large scale customers.

6. Verison

Verison is a media optimized CDN built for meeting the demands of the modern internets. It centralizes SuperPop architecture, Anycast based routing and proprietary caching technologies. It is one of the highest performing and reliable CDNs in the world. Many popular websites like Quora, Lenovo, Novica and CafePress uses this CDN to deliver optimal viewing experiences.

7. Fastly

Fastly is one of the latest CDN founded on 2011. Its office is located on San Francisco. Its global network is built with 10 GB Ethernet, multi-core CPUs, and SSDs. They offer access to real time performance analytics and has the ability to cache frequent changing contents.