wasp Its actually quite easy to detect which web analytics tool a web site is using – you can simply view the source code and look for the page tags yourself. Of course pure logfile analysers cannot be detected in this way, but those are now much less common due to their inherent limitations.

*This post was updated 30-Apr-2010*

To save you the laborious task of manually checking html source code, there are now various tools available that can detect the javascript page tags for you. One excellent one I use myself is WASP – a Firefox plugin (by Stephane Hamel , Immeria blog ) that shows you the web analytics vendor as you browse around the web. It can currently detect 32 different vendors including GA, Urchin, Omniture, Visual Sciences (Web Side Story), Webtrends, Unica, Clicktracks, Indextools plus many others.

Last week, I spent 30 minutes browsing around and found a number of household names now using Google Analytics and/or Urchin. These include:

Alliance & Leicester Bank, ABN Amro, Blockbuster, BOC Group, Dixons, FT.com, Halfords, Interflora, GE Money, Lycos, Harrods, Citibank, National Australia Bank Group, MySpace, Nestle, P&G, Roche, Royal Albert Hall, Stena Line, TUI, Unicef

Update 30-Apr-2010: Slide of Google Analytics enterprise users added

Who uses Google Analytics?

What is interesting is the number of web sites that use multiple tools and there appears to be a pattern – US companies tend to be the ones with multiple vendor tags on their pages, while European organisations tend to only have one.

Any ideas on why this would be? Is it simply a sign of a more mature market that samples the benefits of multiple web analytics vendors? Please share your thoughts via comments.

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