| Used Operating Systems |
| 1 | 24761 | 39.10 | 170 | 1.59 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 16027 | 25.31 | 4330 | 40.55 | Windows NT |
| 3 | 9970 | 15.74 | 263 | 2.46 | +http://yandex.com/bots |
| 4 | 3614 | 5.71 | 3138 | 29.39 | +http://www.baidu.com/search/spider.html |
| 5 | 2039 | 3.22 | 1014 | 9.50 | +http://ahrefs.com/robot/ |
| 6 | 1811 | 2.86 | 19 | 0.18 | +http://OpenLinkProfiler.org/bot |
| 7 | 1622 | 2.56 | 868 | 8.13 | +http://www.google.com/bot.html |
| 8 | 1394 | 2.20 | 2 | 0.02 | +http://webmeup-crawler.com/ |
| 9 | 697 | 1.10 | 284 | 2.66 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 316 | 0.50 | 114 | 1.07 | +http://www.bing.com/bingbot.htm |
| 11 | 266 | 0.42 | 72 | 0.67 | +http://www.linkdex.com/bots/ |
| 12 | 129 | 0.20 | 33 | 0.31 | +http://www.exabot.com/go/robot |
| 13 | 124 | 0.20 | 109 | 1.02 | Windows 95 |
| 14 | 85 | 0.13 | 36 | 0.34 | Windows 98 |
| 15 | 66 | 0.10 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 16 | 49 | 0.08 | 12 | 0.11 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 44 | 0.07 | 1 | 0.01 | PPC Mac OS X Mach-O |
| 18 | 33 | 0.05 | 25 | 0.23 | Windows ME |
| 19 | 29 | 0.05 | 23 | 0.22 | Windows CE |
| 20 | 28 | 0.04 | 24 | 0.22 | MSIE 5.5; Windows NT 4.0 |
| 21 | 26 | 0.04 | 23 | 0.22 | Windows 3.1 |
| 22 | 26 | 0.04 | 24 | 0.22 | ) - BrowseX (2.0.0 Windows |
| 23 | 21 | 0.03 | 21 | 0.20 | Windows 2000 |
| 24 | 21 | 0.03 | 6 | 0.06 | Windows XP |
| 25 | 21 | 0.03 | 16 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 26 | 14 | 0.02 | 10 | 0.09 | Auto; Windows |
| 27 | 13 | 0.02 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 28 | 10 | 0.02 | 1 | 0.01 | +http://www.linkpad.ru |
| 29 | 10 | 0.02 | 4 | 0.04 | X11 |
| 30 | 10 | 0.02 | 5 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 31 | 9 | 0.01 | 8 | 0.07 | +info@netcraft.com |
| 32 | 8 | 0.01 | 7 | 0.07 | Linux i686 [unknown version] |
| 33 | 8 | 0.01 | 4 | 0.04 | +http://duckduckgo.com |
| 34 | 6 | 0.01 | 2 | 0.02 | Android 2.3.5 |
| 35 | 4 | 0.01 | 1 | 0.01 | +http://get4dl.net |
| 36 | 3 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 37 | 3 | 0.00 | 1 | 0.01 | +http://trumpetsheetmusic.org |
| 38 | 3 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 39 | 2 | 0.00 | 1 | 0.01 | Mail.RU_Bot/Robots; +http://go.mail.ru/h... |
| 40 | 2 | 0.00 | 1 | 0.01 | +http://gimme60.com |
| 41 | 2 | 0.00 | 1 | 0.01 | +http://advbot.org/bot.html |
| 42 | 1 | 0.00 | 1 | 0.01 | http://www.lipperhey.com/ |
| 43 | 1 | 0.00 | 0 | 0.00 | http://www.bing.com/bingbot.htm |
| 44 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.5 |
| 45 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
