Net Applications uses software sensors at 40,000 Web sites around the world to measure traffic and come up with its stats. These stats include operating system, browser, IP address, domain host, language, screen resolution, and a referring search engine, according to Vince Vizzaccaro, executive vice president of marketing and strategic alliances for Net Applications.
However, Net Applications noticed something unusual with stats from Google.com, which would represent Google (NASDAQ: GOOG) employees, not the public at large that use its search engine. Two-thirds of the visitors from Google.com did not hide what operating system they were running, which Net Applications recorded in its survey.
One-third, however, were unrecognized even though Net Applications' sensors can detect all major operating systems including most flavors of Unix and Linux. Even Microsoft's new Windows 7, which is deployed internally at Microsoft headquarters, would show up by its identifier string. But the Google operating systems were specifically blocked.