Better to combine & minify javascript or use Google CDN?

Posted by jessegavin on Stack Overflow See other posts from Stack Overflow or by jessegavin
Published on 2010-06-09T21:20:42Z Indexed on 2010/06/09 21:32 UTC
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JavaScript

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Performance

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cdn

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minify

I am building a site which currently uses javascript from several sources:

Group 1: Google Maps API v3 (hosted by Google)
Group 2: jQuery & swfobject (hosted on Google CDN)
Group 3: Several jQuery plugins and non-jquery javascript files (hosted on my server)

I am using Justin Etheredge's tool SquishIt to combine and minify all the javascript files that are hosted on my server (group 3).

I am wondering if the site would 'feel' faster to users if I were to host the files in (group 2) locally so that they can be combined with all the other files in (group 3) and requiring only one HTTP request for groups 2 & 3. This would mean that I don't get the benefits of the Google CDN however.

Does anyone have any advice on this matter?

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