Chrome: Wondering what software a site is using to perform its magic? Chrome extension BuiltWith Technology Profile tells you what software are systems used on any given site with a single click.
That’s really all there is to it: install the extension, click on the BuiltWith icon, and you’ll find out whether your favourite site favours WordPress or Joomla, Flash or HTML5, which analytics and tracking services it uses, and a whole host more besides. BuiltWith is a free extension for Chrome only. Thanks Brendon!
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Wobble
Friday, November 12, 2010 at 3:02 PMThere is a Firefox Add-on also
https://addons.mozilla.org/en-US/firefox/addon/8013/