| Used Operating Systems by Visits |
| 1 | 4686 | 15.16 | 4077 | 42.28 | +http://www.baidu.com/search/spider.html |
| 2 | 11073 | 35.82 | 1903 | 19.73 | Windows NT |
| 3 | 2879 | 9.31 | 783 | 8.12 | +http://www.bing.com/bingbot.htm |
| 4 | 1481 | 4.79 | 589 | 6.11 | +http://www.google.com/bot.html |
| 5 | 2176 | 7.04 | 484 | 5.02 | ezooms.bot@gmail.com |
| 6 | 2079 | 6.73 | 475 | 4.93 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 379 | 1.23 | 376 | 3.90 | http://www.yodao.com/help/webmaster/spid... |
| 8 | 1385 | 4.48 | 362 | 3.75 | +http://ahrefs.com/robot/ |
| 9 | 2250 | 7.28 | 237 | 2.46 | +http://yandex.com/bots |
| 10 | 315 | 1.02 | 66 | 0.68 | +http://shoulu.jike.com/spider.html |
| 11 | 100 | 0.32 | 45 | 0.47 | +http://www.career-x.de/bot.html |
| 12 | 88 | 0.28 | 41 | 0.43 | +http://www.exabot.com/go/robot |
| 13 | 133 | 0.43 | 23 | 0.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 33 | 0.11 | 21 | 0.22 | Windows 98 |
| 15 | 24 | 0.08 | 18 | 0.19 | +http://4seohunt.com/bot.html |
| 16 | 28 | 0.09 | 13 | 0.13 | +http://www.seoprofiler.com/bot |
| 17 | 27 | 0.09 | 13 | 0.13 | +http://www.acoon.de/robot.asp |
| 18 | 760 | 2.46 | 10 | 0.10 | http://crawler.sistrix.net/ |
| 19 | 19 | 0.06 | 10 | 0.10 | Windows 95 |
| 20 | 140 | 0.45 | 9 | 0.09 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 21 | 8 | 0.03 | 8 | 0.08 | Linux i686 [unknown version] |
| 22 | 8 | 0.03 | 8 | 0.08 | WinHttp.WinHttpRequest.5 |
| 23 | 14 | 0.05 | 8 | 0.08 | Intel Mac OS X 10.6 |
| 24 | 9 | 0.03 | 7 | 0.07 | Windows XP |
| 25 | 54 | 0.17 | 6 | 0.06 | J2ME/MIDP |
| 26 | 10 | 0.03 | 5 | 0.05 | +http://www.openindex.io/en/webmasters/s... |
| 27 | 5 | 0.02 | 5 | 0.05 | +http://pmoz.info/doc/botinfo.htm |
| 28 | 20 | 0.06 | 5 | 0.05 | +http://filterdb.iss.net/crawler/ |
| 29 | 6 | 0.02 | 3 | 0.03 | Windows 2000 |
| 30 | 12 | 0.04 | 3 | 0.03 | http://www.botje.com/plukkie.htm |
| 31 | 6 | 0.02 | 3 | 0.03 | ) - BrowseX (2.0.0 Windows |
| 32 | 9 | 0.03 | 3 | 0.03 | ScoutJet; +http://blekko.com/about/blekk... |
| 33 | 12 | 0.04 | 2 | 0.02 | http://www.esrihu.hu/ |
| 34 | 20 | 0.06 | 2 | 0.02 | Win32 |
| 35 | 44 | 0.14 | 2 | 0.02 | PPC Mac OS X 10.4 |
| 36 | 522 | 1.69 | 2 | 0.02 | +http://www.warebay.com/bot.html |
| 37 | 2 | 0.01 | 2 | 0.02 | +http://www.netseer.com/crawler.html; cr... |
| 38 | 11 | 0.04 | 2 | 0.02 | +http://www.compspy.com/spider.html |
| 39 | 8 | 0.03 | 2 | 0.02 | +http://go.mail.ru/help/robots |
| 40 | 20 | 0.06 | 2 | 0.02 | Intel Mac OS X 10.4 |
| 41 | 2 | 0.01 | 2 | 0.02 | +http://www.buzzrankingbot.com/ |
| 42 | 4 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 43 | 2 | 0.01 | 2 | 0.02 | +http://www.profound.net/sibot.html |
| 44 | 2 | 0.01 | 2 | 0.02 | X11 |
| 45 | 14 | 0.05 | 0 | 0.00 | http://desktop.google.com/ |
| 46 | 12 | 0.04 | 0 | 0.00 | Windows NT 5.1 |
| 47 | 16 | 0.05 | 0 | 0.00 | Windows 9. |
| 48 | 4 | 0.01 | 0 | 0.00 | crawler@unister.de |
