| Used Operating Systems |
| 1 | 50139 | 53.52 | 303 | 3.23 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14190 | 15.15 | 2711 | 28.93 | Windows NT |
| 3 | 10128 | 10.81 | 344 | 3.67 | +http://ahrefs.com/robot/ |
| 4 | 5498 | 5.87 | 3943 | 42.07 | +http://www.baidu.com/search/spider.html |
| 5 | 4793 | 5.12 | 1335 | 14.24 | +http://www.easou.com/search/spider.html |
| 6 | 4004 | 4.27 | 4 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 7 | 1339 | 1.43 | 158 | 1.69 | +http://yandex.com/bots |
| 8 | 998 | 1.07 | 66 | 0.70 | Windows 98 |
| 9 | 814 | 0.87 | 48 | 0.51 | +http://www.google.com/bot.html |
| 10 | 650 | 0.69 | 158 | 1.69 | +http://www.linkdex.com/bots/ |
| 11 | 399 | 0.43 | 65 | 0.69 | +http://www.bing.com/bingbot.htm |
| 12 | 244 | 0.26 | 93 | 0.99 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 150 | 0.16 | 14 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 49 | 0.05 | 46 | 0.49 | Windows 95 |
| 15 | 36 | 0.04 | 3 | 0.03 | X11 |
| 16 | 36 | 0.04 | 0 | 0.00 | America Online Browser 1.1; rev1.5; Wind... |
| 17 | 22 | 0.02 | 0 | 0.00 | OS/2 |
| 18 | 18 | 0.02 | 0 | 0.00 | America Online Browser 1.1; rev1.1; Wind... |
| 19 | 17 | 0.02 | 0 | 0.00 | Linux i686 [unknown version] |
| 20 | 16 | 0.02 | 2 | 0.02 | Android 2.3.5 |
| 21 | 14 | 0.01 | 4 | 0.04 | +http://gimme60.com |
| 22 | 13 | 0.01 | 13 | 0.14 | Windows 2000 |
| 23 | 11 | 0.01 | 3 | 0.03 | Windows XP |
| 24 | 11 | 0.01 | 11 | 0.12 | Windows 3.1 |
| 25 | 10 | 0.01 | 2 | 0.02 | +http://p4load.com/ |
| 26 | 10 | 0.01 | 10 | 0.11 | MSIE 5.5; Windows NT 5.0 |
| 27 | 10 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 28 | 9 | 0.01 | 8 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 29 | 8 | 0.01 | 4 | 0.04 | http://crawler.sistrix.net/ |
| 30 | 8 | 0.01 | 7 | 0.07 | Windows ME |
| 31 | 7 | 0.01 | 7 | 0.07 | Windows CE |
| 32 | 6 | 0.01 | 0 | 0.00 | info@muso.com; +http://www.muso.com |
| 33 | 6 | 0.01 | 0 | 0.00 | Solaris 2.4.x |
| 34 | 4 | 0.00 | 0 | 0.00 | i686 Linux; 20020515 |
| 35 | 4 | 0.00 | 0 | 0.00 | Macintosh |
| 36 | 4 | 0.00 | 2 | 0.02 | +http://zemlyaozer.com/bot |
| 37 | 4 | 0.00 | 2 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 38 | 2 | 0.00 | 2 | 0.02 | Auto; Windows |
| 39 | 2 | 0.00 | 2 | 0.02 | Linux [unknown version] |
| 40 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 41 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
