| Used Operating Systems |
| 1 | 2740 | 76.24 | 514 | 66.07 | Windows NT |
| 2 | 328 | 9.13 | 146 | 18.77 | +http://www.google.com/bot.html |
| 3 | 121 | 3.37 | 19 | 2.44 | Intel Mac OS X 10.6 |
| 4 | 72 | 2.00 | 10 | 1.29 | Intel Mac OS X 10.5 |
| 5 | 68 | 1.89 | 10 | 1.29 | Intel Mac OS X 10.4 |
| 6 | 56 | 1.56 | 11 | 1.41 | http://www.dotnetdotcom.org/, crawler@do... |
| 7 | 41 | 1.14 | 14 | 1.80 | Linux i686 [unknown version] |
| 8 | 38 | 1.06 | 11 | 1.41 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 26 | 0.72 | 13 | 1.67 | +http://www.seoprofiler.com/bot/ |
| 10 | 25 | 0.70 | 5 | 0.64 | Linux [unknown version] |
| 11 | 25 | 0.70 | 4 | 0.51 | SunOS sun4u |
| 12 | 22 | 0.61 | 4 | 0.51 | Intel Mac OS X |
| 13 | 8 | 0.22 | 4 | 0.51 | http://www.majestic12.co.uk/bot.php?+ |
| 14 | 7 | 0.19 | 7 | 0.90 | Windows 98 |
| 15 | 4 | 0.11 | 0 | 0.00 | http://desktop.google.com/ |
| 16 | 4 | 0.11 | 2 | 0.26 | +info@netcraft.com |
| 17 | 4 | 0.11 | 2 | 0.26 | +http://www.exabot.com/go/robot |
| 18 | 3 | 0.08 | 0 | 0.00 | Windows XP |
| 19 | 2 | 0.06 | 2 | 0.26 | Windows NT 5.2 |
