| Used Operating Systems |
| 1 | 18028 | 52.37 | 4715 | 52.69 | Windows NT |
| 2 | 3427 | 9.95 | 539 | 6.02 | +http://www.bing.com/bingbot.htm |
| 3 | 3204 | 9.31 | 201 | 2.25 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 2052 | 5.96 | 1855 | 20.73 | +http://www.baidu.com/search/spider.html |
| 5 | 1916 | 5.57 | 679 | 7.59 | +http://www.google.com/bot.html |
| 6 | 1427 | 4.15 | 74 | 0.83 | +http://yandex.com/bots |
| 7 | 1352 | 3.93 | 261 | 2.92 | help@moz.com |
| 8 | 1188 | 3.45 | 5 | 0.06 | +http://www.seoprofiler.com/bot |
| 9 | 272 | 0.79 | 52 | 0.58 | ezooms.bot@gmail.com |
| 10 | 225 | 0.65 | 139 | 1.55 | Windows 95 |
| 11 | 200 | 0.58 | 31 | 0.35 | Windows 98 |
| 12 | 135 | 0.39 | 3 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 13 | 115 | 0.33 | 43 | 0.48 | +http://www.linkdex.com/about/bots/ |
| 14 | 97 | 0.28 | 10 | 0.11 | +http://siteexplorer.info/ |
| 15 | 78 | 0.23 | 41 | 0.46 | Windows 3.1 |
| 16 | 77 | 0.22 | 3 | 0.03 | crawler@unister.de |
| 17 | 62 | 0.18 | 23 | 0.26 | +http://www.exabot.com/go/robot |
| 18 | 53 | 0.15 | 5 | 0.06 | X11 |
| 19 | 52 | 0.15 | 36 | 0.40 | ) - BrowseX (2.0.0 Windows |
| 20 | 48 | 0.14 | 34 | 0.38 | Windows 2000 |
| 21 | 46 | 0.13 | 28 | 0.31 | Windows ME |
| 22 | 43 | 0.12 | 29 | 0.32 | Windows CE |
| 23 | 42 | 0.12 | 36 | 0.40 | MSIE 5.5; Windows NT 5.0 |
| 24 | 41 | 0.12 | 29 | 0.32 | MSIE 5.5; Windows NT 4.0 |
| 25 | 38 | 0.11 | 25 | 0.28 | Auto; Windows |
| 26 | 35 | 0.10 | 2 | 0.02 | Windows XP |
| 27 | 29 | 0.08 | 5 | 0.06 | Android 2.3.5 |
| 28 | 24 | 0.07 | 5 | 0.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 29 | 19 | 0.06 | 1 | 0.01 | Intel Mac OS X 10.6 |
| 30 | 16 | 0.05 | 1 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 31 | 14 | 0.04 | 7 | 0.08 | http://crawler.sistrix.net/ |
| 32 | 12 | 0.03 | 10 | 0.11 | Linux i686 [unknown version] |
| 33 | 10 | 0.03 | 10 | 0.11 | http://help.yahoo.com/help/us/ysearch/sl... |
| 34 | 6 | 0.02 | 0 | 0.00 | Win32 |
| 35 | 6 | 0.02 | 3 | 0.03 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 36 | 5 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 37 | 4 | 0.01 | 0 | 0.00 | Windows 9. |
| 38 | 4 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 39 | 4 | 0.01 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 40 | 3 | 0.01 | 1 | 0.01 | PPC Mac OS X 10.5 |
| 41 | 2 | 0.01 | 1 | 0.01 | Linux [unknown version] |
| 42 | 2 | 0.01 | 1 | 0.01 | +http://www.yunyun.com/spider.html |
| 43 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 44 | 2 | 0.01 | 1 | 0.01 | ScoutJet; +http://blekko.com/about/blekk... |
| 45 | 2 | 0.01 | 1 | 0.01 | MSIE 5.5; Windows 95 |
| 46 | 2 | 0.01 | 2 | 0.02 | Linux i586 [unknown version] |
| 47 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 48 | 1 | 0.00 | 0 | 0.00 | Macintosh PPC |
| 49 | 1 | 0.00 | 0 | 0.00 | +http://tweetmeme.com/ |
| 50 | 1 | 0.00 | 0 | 0.00 | AOL 9.7; AOLBuild 4343.1028; Windows NT ... |
| 51 | 1 | 0.00 | 0 | 0.00 | +http://www.yunyun.com/SiteInfo.php?r=ab... |
