| Used Operating Systems |
| 1 | 9250 | 73.22 | 417 | 34.61 | http://help.yahoo.com/help/us/ysearch/sl... |
| 2 | 1410 | 11.16 | 215 | 17.84 | +http://www.google.com/bot.html |
| 3 | 1217 | 9.63 | 464 | 38.51 | Windows NT |
| 4 | 400 | 3.17 | 2 | 0.17 | +http://www.puritysearch.net/ |
| 5 | 201 | 1.59 | 21 | 1.74 | http://www.dotnetdotcom.org/, crawler@do... |
| 6 | 49 | 0.39 | 32 | 2.66 | Windows 98 |
| 7 | 25 | 0.20 | 17 | 1.41 | Windows 95 |
| 8 | 18 | 0.14 | 5 | 0.41 | +http://www.seoprofiler.com/bot/ |
| 9 | 14 | 0.11 | 6 | 0.50 | Windows XP |
| 10 | 10 | 0.08 | 7 | 0.58 | MSIE 5.5; Windows NT 4.0 |
| 11 | 8 | 0.06 | 2 | 0.17 | Windows ME |
| 12 | 8 | 0.06 | 3 | 0.25 | http://www.search17.com/bot.php |
| 13 | 6 | 0.05 | 6 | 0.50 | Windows 2000 |
| 14 | 6 | 0.05 | 0 | 0.00 | 0824 |
| 15 | 4 | 0.03 | 3 | 0.25 | Windows CE |
| 16 | 4 | 0.03 | 2 | 0.17 | Linux i686 [unknown version] |
| 17 | 2 | 0.02 | 2 | 0.17 | ) - BrowseX (2.0.0 Windows |
| 18 | 2 | 0.02 | 1 | 0.08 | Windows 3.1 |
