| Used Operating Systems |
| 1 | 40912 | 38.17 | 243 | 2.81 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 20766 | 19.37 | 740 | 8.55 | +http://ahrefs.com/robot/ |
| 3 | 15411 | 14.38 | 91 | 1.05 | +http://yandex.com/bots |
| 4 | 13680 | 12.76 | 2055 | 23.74 | Windows NT |
| 5 | 4251 | 3.97 | 1408 | 16.27 | +http://www.easou.com/search/spider.html |
| 6 | 4004 | 3.74 | 4 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 7 | 3494 | 3.26 | 3018 | 34.87 | +http://www.baidu.com/search/spider.html |
| 8 | 1861 | 1.74 | 99 | 1.14 | +http://www.bing.com/bingbot.htm |
| 9 | 578 | 0.54 | 148 | 1.71 | +http://www.linkdex.com/bots/ |
| 10 | 376 | 0.35 | 158 | 1.83 | +http://www.google.com/bot.html |
| 11 | 373 | 0.35 | 224 | 2.59 | Windows 95 |
| 12 | 212 | 0.20 | 27 | 0.31 | Windows 98 |
| 13 | 209 | 0.19 | 2 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 206 | 0.19 | 0 | 0.00 | OS/2 |
| 15 | 71 | 0.07 | 47 | 0.54 | Windows CE |
| 16 | 68 | 0.06 | 49 | 0.57 | Windows 3.1 |
| 17 | 66 | 0.06 | 37 | 0.43 | Windows ME |
| 18 | 64 | 0.06 | 47 | 0.54 | Windows 2000 |
| 19 | 64 | 0.06 | 45 | 0.52 | MSIE 5.5; Windows NT 5.0 |
| 20 | 64 | 0.06 | 0 | 0.00 | Macintosh |
| 21 | 64 | 0.06 | 48 | 0.55 | MSIE 5.5; Windows NT 4.0 |
| 22 | 62 | 0.06 | 31 | 0.36 | http://www.opensiteexplorer.org/dotbot, ... |
| 23 | 47 | 0.04 | 2 | 0.02 | Windows XP |
| 24 | 46 | 0.04 | 23 | 0.27 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 42 | 0.04 | 34 | 0.39 | Auto; Windows |
| 26 | 41 | 0.04 | 33 | 0.38 | ) - BrowseX (2.0.0 Windows |
| 27 | 34 | 0.03 | 2 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 28 | 24 | 0.02 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 29 | 14 | 0.01 | 0 | 0.00 | Linux i686 [unknown version] |
| 30 | 14 | 0.01 | 14 | 0.16 | +info@netcraft.com |
| 31 | 14 | 0.01 | 13 | 0.15 | X11 |
| 32 | 12 | 0.01 | 6 | 0.07 | http://crawler.sistrix.net/ |
| 33 | 12 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 34 | 8 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 35 | 8 | 0.01 | 4 | 0.05 | +http://wmaid.com/explore/ |
| 36 | 4 | 0.00 | 0 | 0.00 | Android |
| 37 | 4 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 38 | 3 | 0.00 | 1 | 0.01 | +http://getdownload.ws |
| 39 | 3 | 0.00 | 1 | 0.01 | +http://inload.me |
| 40 | 2 | 0.00 | 0 | 0.00 | America Online Browser 1.1; rev1.5; Wind... |
| 41 | 1 | 0.00 | 1 | 0.01 | Android 2.3.5 |
