| Used Operating Systems |
| 1 | 293 | 33.49 | 122 | 49.39 | Windows NT |
| 2 | 237 | 27.09 | 1 | 0.40 | +http://www.puritysearch.net/ |
| 3 | 157 | 17.94 | 90 | 36.44 | +http://www.google.com/bot.html |
| 4 | 48 | 5.49 | 4 | 1.62 | PPC Mac OS X Mach-O |
| 5 | 40 | 4.57 | 6 | 2.43 | Intel Mac OS X 10.6 |
| 6 | 37 | 4.23 | 8 | 3.24 | http://www.dotnetdotcom.org/, crawler@do... |
| 7 | 22 | 2.51 | 3 | 1.21 | Intel Mac OS X 10.4 |
| 8 | 16 | 1.83 | 3 | 1.21 | Intel Mac OS X 10.5 |
| 9 | 6 | 0.69 | 2 | 0.81 | http://www.majestic12.co.uk/bot.php?+ |
| 10 | 5 | 0.57 | 1 | 0.40 | Intel Mac OS X |
| 11 | 3 | 0.34 | 1 | 0.40 | +http://www.scoutjet.com/ |
| 12 | 3 | 0.34 | 1 | 0.40 | Linux i686 [unknown version] |
| 13 | 2 | 0.23 | 1 | 0.40 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 2 | 0.23 | 2 | 0.81 | Windows 98 |
| 15 | 2 | 0.23 | 1 | 0.40 | +http://about.ask.com/en/docs/about/webm... |
| 16 | 1 | 0.11 | 0 | 0.00 | http://desktop.google.com/ |
| 17 | 1 | 0.11 | 1 | 0.40 | Win32 |
