| Used Operating Systems |
| 1 | 22628 | 66.69 | 201 | 4.64 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7166 | 21.12 | 2040 | 47.13 | Windows NT |
| 3 | 1027 | 3.03 | 763 | 17.63 | +http://www.baidu.com/search/spider.html |
| 4 | 766 | 2.26 | 338 | 7.81 | +http://www.google.com/bot.html |
| 5 | 624 | 1.84 | 279 | 6.45 | +http://www.bing.com/bingbot.htm |
| 6 | 233 | 0.69 | 84 | 1.94 | +http://www.linkdex.com/bots/ |
| 7 | 212 | 0.62 | 124 | 2.87 | Windows 95 |
| 8 | 172 | 0.51 | 75 | 1.73 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 171 | 0.50 | 45 | 1.04 | Windows 98 |
| 10 | 156 | 0.46 | 24 | 0.55 | +http://yandex.com/bots |
| 11 | 114 | 0.34 | 48 | 1.11 | +http://ahrefs.com/robot/ |
| 12 | 109 | 0.32 | 59 | 1.36 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 107 | 0.32 | 17 | 0.39 | +http://www.findxbot.com |
| 14 | 54 | 0.16 | 36 | 0.83 | MSIE 5.5; Windows NT 5.0 |
| 15 | 53 | 0.16 | 1 | 0.02 | Windows 92 |
| 16 | 39 | 0.11 | 26 | 0.60 | Windows CE |
| 17 | 32 | 0.09 | 20 | 0.46 | Auto; Windows |
| 18 | 31 | 0.09 | 20 | 0.46 | Windows 2000 |
| 19 | 31 | 0.09 | 19 | 0.44 | Windows 3.1 |
| 20 | 30 | 0.09 | 6 | 0.14 | Windows XP |
| 21 | 29 | 0.09 | 20 | 0.46 | Windows ME |
| 22 | 28 | 0.08 | 23 | 0.53 | MSIE 5.5; Windows NT 4.0 |
| 23 | 20 | 0.06 | 15 | 0.35 | ) - BrowseX (2.0.0 Windows |
| 24 | 15 | 0.04 | 2 | 0.05 | +http://gimmeusa-update.com/crawler |
| 25 | 12 | 0.04 | 8 | 0.18 | Linux i686 [unknown version] |
| 26 | 10 | 0.03 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 27 | 8 | 0.02 | 4 | 0.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 28 | 8 | 0.02 | 4 | 0.09 | +http://www.meanpath.com/meanpathbot.htm... |
| 29 | 7 | 0.02 | 2 | 0.05 | +http://www.semrush.com/bot.html |
| 30 | 6 | 0.02 | 2 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 31 | 6 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 32 | 5 | 0.01 | 5 | 0.12 | +http://www.domaintuno.com/robot |
| 33 | 4 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 34 | 4 | 0.01 | 2 | 0.05 | +http://duckduckgo.com |
| 35 | 2 | 0.01 | 2 | 0.05 | Linux [unknown version] |
| 36 | 2 | 0.01 | 2 | 0.05 | PPC Mac OS X Mach-O |
| 37 | 2 | 0.01 | 2 | 0.05 | X11 |
| 38 | 2 | 0.01 | 2 | 0.05 | Linux i586 [unknown version] |
| 39 | 2 | 0.01 | 2 | 0.05 | +http://www.grapeshot.co.uk/crawler.php |
| 40 | 2 | 0.01 | 1 | 0.02 | +http://www.exabot.com/go/robot |
| 41 | 1 | 0.00 | 1 | 0.02 | +http://www.seograph.net/bot.html |
| 42 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 43 | 1 | 0.00 | 1 | 0.02 | +http://www.xovibot.net/ |
