| Used Operating Systems |
| 1 | 357 | 48.18 | 26 | 17.57 | Windows NT |
| 2 | 174 | 23.48 | 56 | 37.84 | +http://www.google.com/bot.html |
| 3 | 46 | 6.21 | 20 | 13.51 | http://help.yahoo.com/help/us/ysearch/sl... |
| 4 | 34 | 4.59 | 17 | 11.49 | +http://about.ask.com/en/docs/about/webm... |
| 5 | 26 | 3.51 | 8 | 5.41 | Linux i686 [unknown version] |
| 6 | 22 | 2.97 | 2 | 1.35 | +http://www.aihit.com/ |
| 7 | 18 | 2.43 | 3 | 2.03 | http://www.dotnetdotcom.org/, crawler@do... |
| 8 | 18 | 2.43 | 8 | 5.41 | +http://www.exabot.com/go/robot |
| 9 | 16 | 2.16 | 2 | 1.35 | +http://www.seoprofiler.com/bot/ |
| 10 | 16 | 2.16 | 2 | 1.35 | Windows NT 5.2 |
| 11 | 10 | 1.35 | 2 | 1.35 | Linux [unknown version] |
| 12 | 4 | 0.54 | 2 | 1.35 | +info@netcraft.com |
