| Used Operating Systems |
| 1 | 34832 | 45.23 | 199 | 3.90 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 12748 | 16.56 | 1513 | 29.61 | Windows NT |
| 3 | 9256 | 12.02 | 592 | 11.59 | +http://ahrefs.com/robot/ |
| 4 | 8011 | 10.40 | 325 | 6.36 | +http://www.bing.com/bingbot.htm |
| 5 | 2751 | 3.57 | 137 | 2.68 | +http://yandex.com/bots |
| 6 | 2636 | 3.42 | 4 | 0.08 | +http://OpenLinkProfiler.org/bot |
| 7 | 2241 | 2.91 | 1746 | 34.17 | +http://www.baidu.com/search/spider.html |
| 8 | 874 | 1.14 | 2 | 0.04 | +http://webmeup-crawler.com/ |
| 9 | 768 | 1.00 | 4 | 0.08 | http://crawler.sistrix.net/ |
| 10 | 745 | 0.97 | 227 | 4.44 | +http://www.google.com/bot.html |
| 11 | 449 | 0.58 | 98 | 1.92 | +http://www.linkdex.com/bots/ |
| 12 | 417 | 0.54 | 89 | 1.74 | +http://www.easou.com/search/spider.html |
| 13 | 304 | 0.39 | 2 | 0.04 | +http://www.linkpad.ru |
| 14 | 208 | 0.27 | 4 | 0.08 | +http://advbot.net/bot.html |
| 15 | 184 | 0.24 | 57 | 1.12 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 174 | 0.23 | 4 | 0.08 | Linux [unknown version] |
| 17 | 54 | 0.07 | 25 | 0.49 | +http://duckduckgo.com |
| 18 | 50 | 0.06 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 19 | 48 | 0.06 | 0 | 0.00 | Win32 |
| 20 | 28 | 0.04 | 6 | 0.12 | Windows 98 |
| 21 | 27 | 0.04 | 17 | 0.33 | Windows 95 |
| 22 | 24 | 0.03 | 0 | 0.00 | Macintosh PPC |
| 23 | 24 | 0.03 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 24 | 15 | 0.02 | 2 | 0.04 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 25 | 12 | 0.02 | 4 | 0.08 | http://www.opensiteexplorer.org/dotbot, ... |
| 26 | 12 | 0.02 | 10 | 0.20 | MSIE 5.5; Windows NT 5.0 |
| 27 | 12 | 0.02 | 0 | 0.00 | FreeBSD [unknown version] |
| 28 | 12 | 0.02 | 8 | 0.16 | X11 |
| 29 | 9 | 0.01 | 0 | 0.00 | Windows XP |
| 30 | 8 | 0.01 | 0 | 0.00 | info@muso.com; +http://www.muso.com |
| 31 | 8 | 0.01 | 4 | 0.08 | +http://gimme60.com |
| 32 | 8 | 0.01 | 0 | 0.00 | Macintosh |
| 33 | 8 | 0.01 | 4 | 0.08 | +http://www.meanpath.com/meanpathbot.htm... |
| 34 | 8 | 0.01 | 2 | 0.04 | +http://downloadg5.com |
| 35 | 6 | 0.01 | 6 | 0.12 | Windows 2000 |
| 36 | 6 | 0.01 | 0 | 0.00 | OS/2 |
| 37 | 4 | 0.01 | 4 | 0.08 | Windows CE |
| 38 | 4 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 39 | 4 | 0.01 | 4 | 0.08 | Windows ME |
| 40 | 4 | 0.01 | 0 | 0.00 | Linux i686 [unknown version] |
| 41 | 4 | 0.01 | 4 | 0.08 | MSIE 5.5; Windows NT 4.0 |
| 42 | 2 | 0.00 | 2 | 0.04 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 43 | 2 | 0.00 | 2 | 0.04 | +info@netcraft.com |
| 44 | 2 | 0.00 | 2 | 0.04 | Windows 3.1 |
