| Used Operating Systems |
| 1 | 50264 | 76.07 | 2272 | 30.12 | Windows NT |
| 2 | 2977 | 4.51 | 2649 | 35.11 | +http://www.baidu.com/search/spider.html |
| 3 | 2546 | 3.85 | 202 | 2.68 | +http://yandex.com/bots |
| 4 | 2314 | 3.50 | 1040 | 13.79 | +http://www.bing.com/bingbot.htm |
| 5 | 2255 | 3.41 | 472 | 6.26 | +http://www.google.com/bot.html |
| 6 | 1402 | 2.12 | 1 | 0.01 | +http://boston.lti.cs.cmu.edu/crawler_12... |
| 7 | 1128 | 1.71 | 293 | 3.88 | ezooms.bot@gmail.com |
| 8 | 731 | 1.11 | 1 | 0.01 | +http://www.warebay.com/bot.html |
| 9 | 330 | 0.50 | 35 | 0.46 | J2ME/MIDP |
| 10 | 258 | 0.39 | 65 | 0.86 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 203 | 0.31 | 24 | 0.32 | ScoutJet; +http://blekko.com/about/blekk... |
| 12 | 186 | 0.28 | 10 | 0.13 | http://crawler.sistrix.net/ |
| 13 | 158 | 0.24 | 44 | 0.58 | Windows 98 |
| 14 | 153 | 0.23 | 68 | 0.90 | +http://discoveryengine.com/discobot.htm... |
| 15 | 121 | 0.18 | 96 | 1.27 | +http://www.seoprofiler.com/bot |
| 16 | 119 | 0.18 | 6 | 0.08 | http://www.youdao.com/help/webmaster/spi... |
| 17 | 96 | 0.15 | 96 | 1.27 | http://www.yodao.com/help/webmaster/spid... |
| 18 | 87 | 0.13 | 6 | 0.08 | http://help.yahoo.com/help/us/ysearch/sl... |
| 19 | 79 | 0.12 | 0 | 0.00 | NT4.0 |
| 20 | 71 | 0.11 | 7 | 0.09 | Linux i686 [unknown version] |
| 21 | 50 | 0.08 | 25 | 0.33 | Windows 95 |
| 22 | 44 | 0.07 | 11 | 0.15 | Windows XP |
| 23 | 42 | 0.06 | 1 | 0.01 | +http://www.aihit.com/ |
| 24 | 37 | 0.06 | 18 | 0.24 | +http://shoulu.jike.com/spider.html |
| 25 | 36 | 0.05 | 7 | 0.09 | MSIE 5.5; Windows NT 4.0 |
| 26 | 34 | 0.05 | 9 | 0.12 | +http://www.scoutjet.com/ |
| 27 | 30 | 0.05 | 6 | 0.08 | +http://ahrefs.com/robot/ |
| 28 | 28 | 0.04 | 2 | 0.03 | Intel Mac OS X 10.5 |
| 29 | 27 | 0.04 | 13 | 0.17 | +http://www.acoon.de/robot.asp |
| 30 | 24 | 0.04 | 2 | 0.03 | Windows ME |
| 31 | 24 | 0.04 | 11 | 0.15 | +http://www.eventguru.com/spider.html |
| 32 | 22 | 0.03 | 3 | 0.04 | BlackBerry |
| 33 | 22 | 0.03 | 0 | 0.00 | Windows 9. |
| 34 | 21 | 0.03 | 1 | 0.01 | S60 |
| 35 | 19 | 0.03 | 8 | 0.11 | +http://www.exabot.com/go/robot |
| 36 | 14 | 0.02 | 6 | 0.08 | Windows 3.1 |
| 37 | 13 | 0.02 | 5 | 0.07 | Windows CE |
| 38 | 13 | 0.02 | 1 | 0.01 | Android |
| 39 | 12 | 0.02 | 5 | 0.07 | +http://www.openindex.io/en/webmasters/s... |
| 40 | 9 | 0.01 | 0 | 0.00 | http://desktop.google.com/ |
| 41 | 9 | 0.01 | 4 | 0.05 | Win32 |
| 42 | 9 | 0.01 | 1 | 0.01 | America Online Browser 1.1; rev1.5; Wind... |
| 43 | 7 | 0.01 | 0 | 0.00 | +http://www-935.ibm.com/services/us/inde... |
| 44 | 6 | 0.01 | 3 | 0.04 | http://www.mojeek.com/bot.html |
| 45 | 5 | 0.01 | 1 | 0.01 | X11 |
| 46 | 5 | 0.01 | 3 | 0.04 | Intel Mac OS X 10.6 |
| 47 | 4 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 48 | 4 | 0.01 | 0 | 0.00 | +http://fulltext.sblog.cz/screenshot/ |
| 49 | 4 | 0.01 | 2 | 0.03 | +http://webmastercoffee.com/about |
| 50 | 3 | 0.00 | 1 | 0.01 | Windows 2000 |
| 51 | 2 | 0.00 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 52 | 2 | 0.00 | 0 | 0.00 | X11; Linux i686 |
| 53 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 54 | 2 | 0.00 | 1 | 0.01 | +http://domains.checkparams.com/ |
| 55 | 2 | 0.00 | 1 | 0.01 | Macintosh |
| 56 | 1 | 0.00 | 1 | 0.01 | Macintosh PPC |
| 57 | 1 | 0.00 | 0 | 0.00 | +http://www.netseer.com/crawler.html; cr... |
| 58 | 1 | 0.00 | 0 | 0.00 | Unknown |
| 59 | 1 | 0.00 | 0 | 0.00 | Linux [unknown version] |
| 60 | 1 | 0.00 | 1 | 0.01 | +http://www.seexie.com |
| 61 | 1 | 0.00 | 0 | 0.00 | BREW |
| 62 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.4 |
| 63 | 1 | 0.00 | 1 | 0.01 | +http://azmp3s.com/mp3bot/ |
| 64 | 1 | 0.00 | 0 | 0.00 | +http://filterdb.iss.net/crawler/ |
