Sunday, October 04, 2009

Microsoft ASP.NET AJAX debut on CDN

Microsoft's ASP.NET launched a new Microsoft AJAX CDN service that provides caching support for AJAX libraries (ASP.NET AJAX and jquery) recently.

Google, Yahoo and AOL have been doing the same for quite sometime. The idea of hosting these files on CDN is to distribute your javascript and css libraries on several servers around the world and serve the user with requested information from a location nearest to the user. This is the main advantage of a CDN, delivering content from a location closest to the user to reduce delay. The CDN's are a combination of software and hardware.This is mostly used for content that does not chage over time significantly. The content servers are provided by such companies as Akamai, Mirror Image Internet, Limelight etc. It was rumored that Microsoft has an interest in Limelight but it appears many more are interested.

  • Google hosts several popular ajax libraries at the Google site. These libraries hosted on Google CDN can be used for animations, easier DOM navigation, Gadgets, etc.

  • Dojo Toolkit organization hosts its javascript and style related files on the AOL CDN. If you need to use Dojo this may be easiest place to start with. These are also on Google CDN.

Read my article where I used javascript hosted on AOL CDN and the style sheets from my intranet to demo jQuery inside a DOJO accordion.

  • Yahoo's YUI (Yahoo User Interface) library hosts its Javascript and CSS on Yahoo CDN. Read more about Yahoo CDN here..

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