| Used Operating Systems |
| 1 | 5391 | 44.36 | 456 | 24.86 | Windows NT |
| 2 | 1852 | 15.24 | 620 | 33.81 | +http://www.google.com/bot.html |
| 3 | 1647 | 13.55 | 141 | 7.69 | +http://yandex.com/bots |
| 4 | 1188 | 9.78 | 294 | 16.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 5 | 994 | 8.18 | 4 | 0.22 | +http://www.puritysearch.net/ |
| 6 | 271 | 2.23 | 115 | 6.27 | +http://www.bing.com/bingbot.htm |
| 7 | 193 | 1.59 | 11 | 0.60 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 149 | 1.23 | 15 | 0.82 | http://www.dotnetdotcom.org/, crawler@do... |
| 9 | 126 | 1.04 | 19 | 1.04 | MirrorDetector; +http://yandex.com/bots |
| 10 | 100 | 0.82 | 43 | 2.34 | Windows 98 |
| 11 | 50 | 0.41 | 14 | 0.76 | +http://www.exabot.com/go/robot |
| 12 | 44 | 0.36 | 25 | 1.36 | Windows 95 |
| 13 | 38 | 0.31 | 6 | 0.33 | Linux i686 [unknown version] |
| 14 | 20 | 0.16 | 11 | 0.60 | Windows 3.1 |
| 15 | 16 | 0.13 | 9 | 0.49 | Windows ME |
| 16 | 12 | 0.10 | 3 | 0.16 | Windows XP |
| 17 | 10 | 0.08 | 7 | 0.38 | MSIE 5.5; Windows NT 5.0 |
| 18 | 8 | 0.07 | 7 | 0.38 | Auto; Windows |
| 19 | 8 | 0.07 | 8 | 0.44 | MSIE 5.5; Windows NT 4.0 |
| 20 | 6 | 0.05 | 5 | 0.27 | Windows 2000 |
| 21 | 6 | 0.05 | 6 | 0.33 | ) - BrowseX (2.0.0 Windows |
| 22 | 4 | 0.03 | 2 | 0.11 | http://www.peew.de/crawler/ |
| 23 | 4 | 0.03 | 4 | 0.22 | +info@netcraft.com |
| 24 | 4 | 0.03 | 1 | 0.05 | http://www.search17.com/bot.php |
| 25 | 2 | 0.02 | 2 | 0.11 | Windows CE |
| 26 | 2 | 0.02 | 1 | 0.05 | OpenBSD [unknown version] |
| 27 | 2 | 0.02 | 2 | 0.11 | Intel Mac OS X 10.7 |
| 28 | 2 | 0.02 | 2 | 0.11 | +http://www.AboutUs.org/ |
| 29 | 1 | 0.01 | 0 | 0.00 | Debian GNU/Linux - only dead fish go wit... |
| 30 | 1 | 0.01 | 1 | 0.05 | FreeBSD [unknown version] |
| 31 | 1 | 0.01 | 0 | 0.00 | SunOS sun4u |
