| Used Operating Systems |
| 1 | 16244 | 56.89 | 256 | 5.31 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7187 | 25.17 | 3227 | 66.95 | +http://ahrefs.com/robot/ |
| 3 | 2605 | 9.12 | 627 | 13.01 | Windows NT |
| 4 | 936 | 3.28 | 236 | 4.90 | +http://www.bing.com/bingbot.htm |
| 5 | 582 | 2.04 | 193 | 4.00 | +http://www.google.com/bot.html |
| 6 | 286 | 1.00 | 69 | 1.43 | +http://yandex.com/bots |
| 7 | 248 | 0.87 | 49 | 1.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 232 | 0.81 | 66 | 1.37 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 41 | 0.14 | 14 | 0.29 | +http://www.linkdex.com/bots/ |
| 10 | 30 | 0.11 | 22 | 0.46 | Windows 95 |
| 11 | 29 | 0.10 | 6 | 0.12 | Windows 98 |
| 12 | 24 | 0.08 | 4 | 0.08 | http://www.botje.com/plukkie.htm |
| 13 | 20 | 0.07 | 6 | 0.12 | http://www.opensiteexplorer.org/dotbot, ... |
| 14 | 16 | 0.06 | 8 | 0.17 | +http://www.meanpath.com/meanpathbot.htm... |
| 15 | 14 | 0.05 | 5 | 0.10 | +http://www.exabot.com/go/robot |
| 16 | 12 | 0.04 | 5 | 0.10 | Windows CE |
| 17 | 7 | 0.02 | 1 | 0.02 | Linux i686 [unknown version] |
| 18 | 6 | 0.02 | 5 | 0.10 | Windows ME |
| 19 | 6 | 0.02 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 20 | 4 | 0.01 | 4 | 0.08 | Windows 2000 |
| 21 | 4 | 0.01 | 2 | 0.04 | +http://www.findxbot.com |
| 22 | 4 | 0.01 | 4 | 0.08 | ) - BrowseX (2.0.0 Windows |
| 23 | 3 | 0.01 | 3 | 0.06 | Auto; Windows |
| 24 | 2 | 0.01 | 2 | 0.04 | Windows XP |
| 25 | 2 | 0.01 | 2 | 0.04 | Windows 3.1 |
| 26 | 2 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 27 | 2 | 0.01 | 2 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 28 | 1 | 0.00 | 1 | 0.02 | +http://www.privacyaware.org |
| 29 | 1 | 0.00 | 0 | 0.00 | X11 |
| 30 | 1 | 0.00 | 1 | 0.02 | +info@netcraft.com |
