Official references for default values of concurre

Question

I am trying to complete a list of offical documentation references about the default values* of the maximum concurrent HTTP/1.1 connections per server for current (2011) major browsers.

Here's what I've got so far:

• Firefox 4.x: 6 (ref missing)
• Firefox 3.6.x: 6
• Internet Explorer 9.x: 6
• Internet Explorer 8.x: dialup: 2, broadband: 6
• Internet Explorer 7.x: dialup: 2, broadband: 2
• Chrome 11.x: 6
• Chrome 10.x: 6
• Opera 11.x: 8
• Safari 5.x: 6 (ref missing)

I think most (if not all) of the default values I listed should be correct, but I'd prefer to have official documentation references which prove that.

Is anybody aware of such offical documentation references?

Any help would be greatly appreciated.

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_{* How to tweak this values by registry/console, or how to optimize by CDNs/CNAMEs is not the target of this question.}

Answer 1

This link is really good but also not updated http://www.stevesouders.com/blog/2008/03/20/roundup-on-parallel-connections/