Network Status

What is CDN?

A content delivery network (CDN) is a system of distributed servers/network placed across the globe that deliver pages and other Web content to a user, based on the geographic locations of the user, the origin of the webpage and the content delivery server.  CDN’s ensure users download data from servers that are closest in geographical proximity.

All of us interact with CDNs on regular basis; while we are shopping online, reading articles on web, news sites, watching videos or accessing social media feeds.

It doesn’t matter what you do, or what type of content you consume, probability is that you'll find CDNs behind every character of text, every image pixel and every movie frame that gets delivered to your PC and mobile browser.

Why CDN?

There is a delay that occurs from the moment you request to load a web page to the moment its content actually appears on screen. This delay is affected by number of factors. In all cases however, the delay duration is impacted by the physical distance between you(user) and that website's hosting server. With CDN, when a visitor makes a request to a website, that request is routed to the nearest possible CDN edge server, thus reducing latency and improving site speed and performance.

How a CDN Works

To minimize the distance between the visitors and your website's server, a CDN stores a cached version of its content in multiple geographical locations (points of presence or PoPs). Each PoP contains a number of caching servers responsible for content delivery to visitors within its proximity. Each CDN PoP typically contains numerous caching servers. Their main function is to accelerate website load times and reduce bandwidth consumption. They don’t generate the content for the website. Instead, they keep a copy of the content in a cache. Inside CDN caching servers, cached files are stored on solid-state and hard-disk drives (SSD and HDD) or in random-access memory (RAM), with the more commonly used files hosted on the more speedy mediums. The idea is to direct the user to the closest point of presence.

7%

Drop in conversions if there is 1 sec delay in Page Load

4%

Drop in Revenue if pages were 2 sec slower

16%

Drop in CSAT if there is 1 sec delay in Page Load

40%

Abandon a Website that takes more than 3 Secs to load

What a CDN can do for you?

  • Improve Page load time
  • High availability in peak traffic
  • Reduce bandwidth consumption
  • Reduce Infrastructure costs
  • Protect your website from DDOS attacks
  • WAF and protection against cyber attacks
  • 100% HTTPS traffic
  • Load balancing between servers
  • Intelligent Personalized Catalog Browse Ahead
  • Pre-defined Templates available that matches the look and feel of the website
  • Any Location | Device | Browser

Evolution of CDN & Beyond

1

Static CDN

2

Dynamic CDN

3

Multi Purpose CDN

we are here
  Static CDN Dynamic CDN Multi Purpose CDN
Objective Performance Performance & Scalability Performance, Scalability and Security
Content Served Static HTML & Downloadable files Static & dynamic content including rich media Static & dynamic content including mobile and rich media
Caching method Origin Push Many are origin Pull Mostly origin Pull
Network Topology Scattered Consolidated Highly Consolidated
Customer Corporate Business Anyone with a website
Pricing Very expensive Expensive affordable