Study: Google Tracking 88% Of Domains In Study

Jun 2, 2009 at 9:24am ET by Barry Schwartz

A new study published by graduate students at University of California, Berkeley showed that Google is the leading footprint on the top 100 sites in their study.

As you can see from the chart below, Google Analytics was found on 81% of the top 100 sites, while DoubleClick (owned by Google) was in second place, by being found on 70% of those sites. Microsoft came in third with Atlas showing up on 60% of those sites. Here is the chart:

When combining Google Analytics, DoubleClick, AdSense, Google Widgets, Google FriendConnect and others, Google has a 88% footprint on those sites:

The New York Times blog has additional commentary on the limited study.

Postscript: Google: Master Of Closing The Loop? by Danny from April 2007, Danny talked about this issue. Back then Google said they would not mix and match the data between products.

Barry Schwartz is Search Engine Land's News Editor and owns RustyBrick, a NY based web consulting firm. He also runs Search Engine Roundtable, a popular search blog on very advanced SEM topics. Barry's personal blog is named Cartoon Barry and he can be followed on Twitter here.

See more articles by Barry Schwartz >

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ONE COMMENT ON Study: Google Tracking 88% Of Domains In Study

garazy, June 2nd, 2009 at 7:11 pm ET:

Hi Barry,

You might be interested in http://trends.builtwith.com it tell you Google tracking trends and historical trending information over a period of time.

Gary

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