| Used Operating Systems |
| 1 | 48571 | 43.78 | 264 | 2.90 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 25485 | 22.97 | 3569 | 39.14 | Windows NT |
| 3 | 19424 | 17.51 | 757 | 8.30 | +http://www.bing.com/bingbot.htm |
| 4 | 3063 | 2.76 | 2473 | 27.12 | +http://www.baidu.com/search/spider.html |
| 5 | 2410 | 2.17 | 153 | 1.68 | +http://ahrefs.com/robot/ |
| 6 | 1986 | 1.79 | 3 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 1693 | 1.53 | 175 | 1.92 | +http://yandex.com/bots |
| 8 | 1124 | 1.01 | 231 | 2.53 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 988 | 0.89 | 121 | 1.33 | +http://www.google.com/bot.html |
| 10 | 862 | 0.78 | 473 | 5.19 | Windows 95 |
| 11 | 764 | 0.69 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 12 | 641 | 0.58 | 48 | 0.53 | Windows 98 |
| 13 | 521 | 0.47 | 120 | 1.32 | +http://www.linkdex.com/bots/ |
| 14 | 354 | 0.32 | 0 | 0.00 | OS/2 |
| 15 | 300 | 0.27 | 0 | 0.00 | FreeBSD [unknown version] |
| 16 | 235 | 0.21 | 0 | 0.00 | +http://www.easou.com/search/spider.html |
| 17 | 229 | 0.21 | 78 | 0.86 | Windows CE |
| 18 | 202 | 0.18 | 3 | 0.03 | Linux i686 [unknown version] |
| 19 | 196 | 0.18 | 0 | 0.00 | Macintosh PPC |
| 20 | 192 | 0.17 | 0 | 0.00 | Win32 |
| 21 | 161 | 0.15 | 98 | 1.07 | Auto; Windows |
| 22 | 148 | 0.13 | 96 | 1.05 | Windows 2000 |
| 23 | 148 | 0.13 | 78 | 0.86 | Windows ME |
| 24 | 142 | 0.13 | 2 | 0.02 | Macintosh |
| 25 | 137 | 0.12 | 94 | 1.03 | MSIE 5.5; Windows NT 5.0 |
| 26 | 133 | 0.12 | 78 | 0.86 | MSIE 5.5; Windows NT 4.0 |
| 27 | 132 | 0.12 | 4 | 0.04 | Windows XP |
| 28 | 131 | 0.12 | 76 | 0.83 | Windows 3.1 |
| 29 | 112 | 0.10 | 76 | 0.83 | ) - BrowseX (2.0.0 Windows |
| 30 | 84 | 0.08 | 0 | 0.00 | i686 Linux; 20020515 |
| 31 | 72 | 0.06 | 0 | 0.00 | http://help.yahoo.com/help/us/ysearch/sl... |
| 32 | 68 | 0.06 | 0 | 0.00 | BeOS BePC |
| 33 | 44 | 0.04 | 2 | 0.02 | Linux i586 [unknown version] |
| 34 | 36 | 0.03 | 0 | 0.00 | Solaris 2.4.x |
| 35 | 34 | 0.03 | 17 | 0.19 | +http://duckduckgo.com |
| 36 | 20 | 0.02 | 10 | 0.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 37 | 15 | 0.01 | 1 | 0.01 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 38 | 12 | 0.01 | 0 | 0.00 | America Online Browser 1.1; rev1.1; Wind... |
| 39 | 8 | 0.01 | 7 | 0.08 | Android |
| 40 | 8 | 0.01 | 0 | 0.00 | America Online Browser 1.1; rev1.2; Wind... |
| 41 | 8 | 0.01 | 0 | 0.00 | http://www.bing.com/bingbot.htm |
| 42 | 8 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 43 | 8 | 0.01 | 0 | 0.00 | America Online Browser 1.1; rev1.5; Wind... |
| 44 | 6 | 0.01 | 2 | 0.02 | +http://mediaeden.net |
| 45 | 4 | 0.00 | 2 | 0.02 | +http://gimme60.com |
| 46 | 3 | 0.00 | 3 | 0.03 | +info@netcraft.com |
| 47 | 2 | 0.00 | 0 | 0.00 | i686 Linux; 20020209 |
| 48 | 2 | 0.00 | 2 | 0.02 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 49 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 50 | 2 | 0.00 | 2 | 0.02 | +; |
| 51 | 2 | 0.00 | 1 | 0.01 | +http://advbot.org/bot.html |
