| Used Operating Systems |
| 1 | 13607 | 76.31 | 430 | 49.48 | Windows NT |
| 2 | 2298 | 12.89 | 124 | 14.27 | http://help.yahoo.com/help/us/ysearch/sl... |
| 3 | 674 | 3.78 | 151 | 17.38 | +http://www.google.com/bot.html |
| 4 | 440 | 2.47 | 2 | 0.23 | +http://www.puritysearch.net/ |
| 5 | 325 | 1.82 | 28 | 3.22 | http://www.dotnetdotcom.org/, crawler@do... |
| 6 | 158 | 0.89 | 4 | 0.46 | Linux i686 [unknown version] |
| 7 | 118 | 0.66 | 10 | 1.15 | http://www.kalooga.com/info.html?page=cr... |
| 8 | 35 | 0.20 | 20 | 2.30 | +http://WebDataCentre.com/ |
| 9 | 30 | 0.17 | 15 | 1.73 | +http://www.exabot.com/go/robot |
| 10 | 25 | 0.14 | 18 | 2.07 | +http://www.scoutjet.com/ |
| 11 | 23 | 0.13 | 18 | 2.07 | +http://www.rexyo.com/robot.html |
| 12 | 20 | 0.11 | 13 | 1.50 | http://www.botje.com/plukkie.htm |
| 13 | 18 | 0.10 | 12 | 1.38 | +http://www.seexie.com |
| 14 | 12 | 0.07 | 2 | 0.23 | +http://www.aihit.com/ |
| 15 | 12 | 0.07 | 2 | 0.23 | Windows NT 5.2 |
| 16 | 11 | 0.06 | 7 | 0.81 | +http://www.guruji.com/en/WebmasterFAQ.h... |
| 17 | 10 | 0.06 | 10 | 1.15 | Windows 98 |
| 18 | 6 | 0.03 | 0 | 0.00 | http://desktop.google.com/ |
| 19 | 6 | 0.03 | 0 | 0.00 | http://www.majestic12.co.uk/bot.php?+ |
| 20 | 3 | 0.02 | 3 | 0.35 | http://www.google.com/bot.html |
