| Used Operating Systems |
| 1 | 3597 | 23.11 | 1619 | 34.51 | Windows NT |
| 2 | 2278 | 14.64 | 107 | 2.28 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 1844 | 11.85 | 678 | 14.45 | +http://www.easou.com/search/spider.html |
| 4 | 1827 | 11.74 | 1355 | 28.88 | +http://www.baidu.com/search/spider.html |
| 5 | 920 | 5.91 | 40 | 0.85 | Windows 98 |
| 6 | 857 | 5.51 | 249 | 5.31 | +http://www.bing.com/bingbot.htm |
| 7 | 746 | 4.79 | 201 | 4.28 | +http://yandex.com/bots |
| 8 | 629 | 4.04 | 2 | 0.04 | http://crawler.sistrix.net/ |
| 9 | 600 | 3.86 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 10 | 583 | 3.75 | 116 | 2.47 | +http://www.google.com/bot.html |
| 11 | 386 | 2.48 | 122 | 2.60 | +http://www.linkdex.com/bots/ |
| 12 | 353 | 2.27 | 1 | 0.02 | +http://www.seokicks.de/robot.html |
| 13 | 211 | 1.36 | 47 | 1.00 | +http://ahrefs.com/robot/ |
| 14 | 186 | 1.20 | 43 | 0.92 | http://www.opensiteexplorer.org/dotbot, ... |
| 15 | 153 | 0.98 | 24 | 0.51 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 111 | 0.71 | 24 | 0.51 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 44 | 0.28 | 4 | 0.09 | +http://www.profound.net/urlappendbot.ht... |
| 18 | 42 | 0.27 | 20 | 0.43 | +http://www.exabot.com/go/robot |
| 19 | 40 | 0.26 | 1 | 0.02 | +http://www.linkpad.ru |
| 20 | 31 | 0.20 | 1 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 21 | 22 | 0.14 | 11 | 0.23 | +http://www.career-x.de/bot.html |
| 22 | 12 | 0.08 | 1 | 0.02 | Linux [unknown version] |
| 23 | 10 | 0.06 | 3 | 0.06 | X11 |
| 24 | 8 | 0.05 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 25 | 7 | 0.04 | 5 | 0.11 | +http://wmaid.com/explore/ |
| 26 | 7 | 0.04 | 2 | 0.04 | +http://gimme60.com |
| 27 | 6 | 0.04 | 2 | 0.04 | +http://fulltext.sblog.cz/ |
| 28 | 5 | 0.03 | 0 | 0.00 | Android 2.3.5 |
| 29 | 5 | 0.03 | 1 | 0.02 | +http://freedlf.com/ |
| 30 | 5 | 0.03 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 31 | 5 | 0.03 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 32 | 5 | 0.03 | 1 | 0.02 | Intel Mac OS X 10.6 |
| 33 | 4 | 0.03 | 1 | 0.02 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 34 | 3 | 0.02 | 2 | 0.04 | Linux i686 [unknown version] |
| 35 | 3 | 0.02 | 1 | 0.02 | +http://inload.in |
| 36 | 2 | 0.01 | 0 | 0.00 | Win32 |
| 37 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 38 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 39 | 2 | 0.01 | 1 | 0.02 | +http://www.semrush.com/bot.html |
| 40 | 2 | 0.01 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 41 | 1 | 0.01 | 0 | 0.00 | OpenBSD [unknown version] |
| 42 | 1 | 0.01 | 0 | 0.00 | PPC Mac OS X 10.4 |
| 43 | 1 | 0.01 | 1 | 0.02 | +http://136.186.231.16 |
| 44 | 1 | 0.01 | 1 | 0.02 | Trident/5.0; Windows NT 4.1; Avant Brows... |
| 45 | 1 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 46 | 1 | 0.01 | 1 | 0.02 | Trident/6.0; Windows 98; FDM; SpamBlocke... |
| 47 | 1 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
