| Used Operating Systems |
| 1 | 11912 | 38.81 | 220 | 3.96 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 6950 | 22.64 | 2077 | 37.39 | Windows NT |
| 3 | 4281 | 13.95 | 1428 | 25.71 | +http://www.baidu.com/search/spider.html |
| 4 | 3088 | 10.06 | 1131 | 20.36 | +http://www.google.com/bot.html |
| 5 | 1549 | 5.05 | 249 | 4.48 | +http://www.bing.com/bingbot.htm |
| 6 | 675 | 2.20 | 4 | 0.07 | X11 |
| 7 | 426 | 1.39 | 52 | 0.94 | +http://yandex.com/bots |
| 8 | 408 | 1.33 | 62 | 1.12 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 265 | 0.86 | 26 | 0.47 | +http://ahrefs.com/robot/ |
| 10 | 257 | 0.84 | 51 | 0.92 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 242 | 0.79 | 78 | 1.40 | +http://www.linkdex.com/bots/ |
| 12 | 189 | 0.62 | 22 | 0.40 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 13 | 97 | 0.32 | 37 | 0.67 | +http://www.exabot.com/go/robot |
| 14 | 53 | 0.17 | 9 | 0.16 | MSIE 5.5; Windows NT 5.0 |
| 15 | 42 | 0.14 | 20 | 0.36 | +http://www.meanpath.com/meanpathbot.htm... |
| 16 | 33 | 0.11 | 15 | 0.27 | +http://help.coccoc.com/ |
| 17 | 31 | 0.10 | 8 | 0.14 | +http://www.semrush.com/bot.html |
| 18 | 27 | 0.09 | 11 | 0.20 | Windows 98 |
| 19 | 14 | 0.05 | 7 | 0.13 | http://crawler.sistrix.net/ |
| 20 | 12 | 0.04 | 10 | 0.18 | +http://pmoz.info/doc/botinfo.htm |
| 21 | 12 | 0.04 | 2 | 0.04 | +http://prox100download.com |
| 22 | 10 | 0.03 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 23 | 10 | 0.03 | 4 | 0.07 | +http://OpenLinkProfiler.org/bot |
| 24 | 10 | 0.03 | 4 | 0.07 | +info@netcraft.com |
| 25 | 9 | 0.03 | 3 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 26 | 7 | 0.02 | 2 | 0.04 | Windows 95 |
| 27 | 6 | 0.02 | 2 | 0.04 | Auto; Windows |
| 28 | 6 | 0.02 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 29 | 6 | 0.02 | 1 | 0.02 | +http://u2search.co |
| 30 | 6 | 0.02 | 0 | 0.00 | Linux i686 [unknown version] |
| 31 | 6 | 0.02 | 1 | 0.02 | +http://t2downloads.xyz |
| 32 | 6 | 0.02 | 1 | 0.02 | +http://r4downloads.co |
| 33 | 6 | 0.02 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 34 | 5 | 0.02 | 1 | 0.02 | +http://alphaphitote.com |
| 35 | 5 | 0.02 | 0 | 0.00 | +http://siteexplorer.info/ |
| 36 | 4 | 0.01 | 2 | 0.04 | +https://www.mojeek.com/bot.html |
| 37 | 4 | 0.01 | 1 | 0.02 | +http://www.xovibot.net/ |
| 38 | 4 | 0.01 | 2 | 0.04 | +http://botw.org |
| 39 | 3 | 0.01 | 1 | 0.02 | Windows CE |
| 40 | 3 | 0.01 | 1 | 0.02 | Windows 3.1 |
| 41 | 2 | 0.01 | 0 | 0.00 | OpenBSD [unknown version] |
| 42 | 2 | 0.01 | 2 | 0.04 | +http://fb02itsscan.fh-muenster.de |
| 43 | 2 | 0.01 | 2 | 0.04 | +http://www.linkpad.ru |
| 44 | 2 | 0.01 | 2 | 0.04 | WinHttp.WinHttpRequest.5 |
| 45 | 1 | 0.00 | 0 | 0.00 | Win32 |
| 46 | 1 | 0.00 | 1 | 0.02 | Intel Mac OS X 10.5 |
| 47 | 1 | 0.00 | 0 | 0.00 | Linux [unknown version] |
| 48 | 1 | 0.00 | 1 | 0.02 | MSIE 6.0; Windows NT 5.1 |
| 49 | 1 | 0.00 | 1 | 0.02 | Windows Phone OS 7.5 |
