| Used Operating Systems |
| 1 | 12111 | 45.79 | 1449 | 25.67 | Windows NT |
| 2 | 3761 | 14.22 | 557 | 9.87 | +http://www.bing.com/bingbot.htm |
| 3 | 2783 | 10.52 | 2274 | 40.29 | +http://www.baidu.com/search/spider.html |
| 4 | 2152 | 8.14 | 213 | 3.77 | +http://www.google.com/bot.html |
| 5 | 1831 | 6.92 | 414 | 7.34 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 1713 | 6.48 | 309 | 5.47 | ezooms.bot@gmail.com |
| 7 | 539 | 2.04 | 178 | 3.15 | +http://ahrefs.com/robot/ |
| 8 | 486 | 1.84 | 37 | 0.66 | +http://yandex.com/bots |
| 9 | 219 | 0.83 | 8 | 0.14 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 122 | 0.46 | 32 | 0.57 | +http://www.exabot.com/go/robot |
| 11 | 104 | 0.39 | 30 | 0.53 | +http://www.semrush.com/bot.html |
| 12 | 96 | 0.36 | 4 | 0.07 | X11 |
| 13 | 56 | 0.21 | 28 | 0.50 | http://crawler.sistrix.net/ |
| 14 | 54 | 0.20 | 2 | 0.04 | +http://www.compspy.com/spider.html |
| 15 | 51 | 0.19 | 0 | 0.00 | PPC Mac OS X 10.4 |
| 16 | 47 | 0.18 | 5 | 0.09 | Linux i686 [unknown version] |
| 17 | 43 | 0.16 | 14 | 0.25 | Auto; Windows |
| 18 | 39 | 0.15 | 14 | 0.25 | Windows 2000 |
| 19 | 39 | 0.15 | 12 | 0.21 | Windows 95 |
| 20 | 26 | 0.10 | 10 | 0.18 | MSIE 5.5; Windows NT 5.0 |
| 21 | 20 | 0.08 | 0 | 0.00 | Windows 9. |
| 22 | 18 | 0.07 | 8 | 0.14 | Windows 98 |
| 23 | 16 | 0.06 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 24 | 16 | 0.06 | 8 | 0.14 | +http://www.acoon.de/robot.asp |
| 25 | 14 | 0.05 | 5 | 0.09 | Windows XP |
| 26 | 10 | 0.04 | 4 | 0.07 | ScoutJet; +http://blekko.com/about/blekk... |
| 27 | 10 | 0.04 | 5 | 0.09 | +http://siteexplorer.info/ |
| 28 | 8 | 0.03 | 2 | 0.04 | +http://www.warebay.com/bot.html |
| 29 | 8 | 0.03 | 7 | 0.12 | +http://pmoz.info/doc/botinfo.htm |
| 30 | 8 | 0.03 | 4 | 0.07 | +http://botw.org |
| 31 | 8 | 0.03 | 3 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 32 | 8 | 0.03 | 2 | 0.04 | http://www.dataprovider.com/ |
| 33 | 6 | 0.02 | 2 | 0.04 | +http://www.netseer.com/crawler.html; cr... |
| 34 | 6 | 0.02 | 0 | 0.00 | http://help.yahoo.com/help/us/ysearch/sl... |
| 35 | 6 | 0.02 | 2 | 0.04 | +info@netcraft.com |
| 36 | 4 | 0.02 | 0 | 0.00 | http://desktop.google.com/ |
| 37 | 4 | 0.02 | 2 | 0.04 | +http://www.profound.net/urlappendbot.ht... |
| 38 | 2 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 39 | 2 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 40 | 1 | 0.00 | 0 | 0.00 | MSIE 5.5; Windows 95 |
