What is a CDN?
A CDN ( Content Delivery Network ) is essentially a network or system of distributed servers that deliver webpages and other Web content to a user based on the geographic locations of the user, the origin of the webpage and a content delivery server. Each CDN node (also called Edge Servers) caches the static content of a site like the images, CSS/JS files and other structural components. The majority of an end-user’s page load time is spent on retrieving this content, and so it makes sense to provide these “building blocks” of a site in as many server nodes as possible, distributed throughout the world.
Why CloudFlare ?
Because it is free? NO NO NO !! Once your website is a part of the CloudFlare community, its web traffic is routed through CloudFlare intelligent global network. It automatically optimize the delivery of your web pages so your visitors get the fastest page load times and best performance. It also block threats and limit abusive bots and crawlers from wasting your bandwidth and server resources. The result: CloudFlare-powered websites see a significant improvement in performance and a decrease in spam and other attacks.
Free CDN – Content Delivery Network service for website :
Distribute your content around the world so it’s closer to your visitors (speeding up your site).
It built DNS to be fast, powerful and secure.
Web pages with ad servers and third party widgets load snappy on both mobile and computers.
Automatically optimizes your pages to minimize the number of network connections and ensure even third party resources won’t slow down page rendering.
Easy on and off
Each of the many CloudFlare Optimizer services is easy to turn on or off. Want to try one of the services? It is one click to turn on. Want to turn one of them off? It is one click simple.
Saves 20% of a file’s size and works without caching so it can support even fully dynamic pages.
Nothing to install
CloudFlare Optimizer is available without any hardware, software or code changes. With a simple change to DNS, you can be up and running in five minutes.
Local storage caching
Uses local storage on modern browsers and mobile devices to intelligently cache the objects needed to best render your site.
Cache header optimization
Automatically adjusts the cache header instructions so browsers will correctly cache the resources of a site to minimize the need for new requests.
Protect your website from a range of online threats from spammers to SQL injection to DDOS.
Get insight into all of your website’s traffic including threats and search engine crawlers.
Lastly, CDN ( Content Delivery Network ) is good for speed, It helps in loading website/page fast . It also improved in SEO ( search Engine Optimization ). Improved user experience – Load Reduction and Consistent Speed.
Reference : webopedia, CloudFlare & Gtmetrix. For more details please visit CloudFlare official site
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