| Used Operating Systems |
| 1 | 9451 | 44.54 | 3269 | 55.03 | Windows NT |
| 2 | 7135 | 33.62 | 89 | 1.50 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 1623 | 7.65 | 1558 | 26.23 | +http://www.baidu.com/search/spider.html |
| 4 | 850 | 4.01 | 240 | 4.04 | +http://www.bing.com/bingbot.htm |
| 5 | 631 | 2.97 | 145 | 2.44 | +http://www.google.com/bot.html |
| 6 | 276 | 1.30 | 40 | 0.67 | +http://yandex.com/bots |
| 7 | 200 | 0.94 | 150 | 2.53 | Windows 95 |
| 8 | 187 | 0.88 | 68 | 1.14 | +http://www.linkdex.com/about/bots/ |
| 9 | 155 | 0.73 | 1 | 0.02 | +http://www.exabot.com/go/robot |
| 10 | 111 | 0.52 | 16 | 0.27 | Windows 98 |
| 11 | 46 | 0.22 | 37 | 0.62 | Windows 3.1 |
| 12 | 42 | 0.20 | 3 | 0.05 | +http://www.seoprofiler.com/bot |
| 13 | 41 | 0.19 | 40 | 0.67 | +http://www.openfos.com |
| 14 | 39 | 0.18 | 31 | 0.52 | Windows ME |
| 15 | 38 | 0.18 | 19 | 0.32 | +http://www.easou.com/search/spider.html |
| 16 | 36 | 0.17 | 35 | 0.59 | MSIE 5.5; Windows NT 5.0 |
| 17 | 36 | 0.17 | 34 | 0.57 | MSIE 5.5; Windows NT 4.0 |
| 18 | 35 | 0.16 | 4 | 0.07 | Windows XP |
| 19 | 34 | 0.16 | 33 | 0.56 | Auto; Windows |
| 20 | 30 | 0.14 | 29 | 0.49 | ) - BrowseX (2.0.0 Windows |
| 21 | 29 | 0.14 | 6 | 0.10 | X11 |
| 22 | 26 | 0.12 | 2 | 0.03 | +http://endb-consolidated.aihit.com/ |
| 23 | 25 | 0.12 | 23 | 0.39 | Windows 2000 |
| 24 | 22 | 0.10 | 22 | 0.37 | Windows CE |
| 25 | 22 | 0.10 | 9 | 0.15 | help@moz.com |
| 26 | 13 | 0.06 | 3 | 0.05 | +http://siteexplorer.info/ |
| 27 | 11 | 0.05 | 5 | 0.08 | ezooms.bot@gmail.com |
| 28 | 10 | 0.05 | 5 | 0.08 | http://crawler.sistrix.net/ |
| 29 | 7 | 0.03 | 0 | 0.00 | Android 2.3.5 |
| 30 | 6 | 0.03 | 1 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 31 | 6 | 0.03 | 0 | 0.00 | Linux 2.4.x |
| 32 | 6 | 0.03 | 3 | 0.05 | +http://wiki.github.com/bixo/bixo/bixocr... |
| 33 | 6 | 0.03 | 5 | 0.08 | +http://www.semrush.com/bot.html |
| 34 | 5 | 0.02 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 35 | 5 | 0.02 | 5 | 0.08 | Linux i686 [unknown version] |
| 36 | 4 | 0.02 | 2 | 0.03 | +info@netcraft.com |
| 37 | 4 | 0.02 | 1 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 38 | 3 | 0.01 | 0 | 0.00 | Win32 |
| 39 | 3 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 40 | 3 | 0.01 | 2 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 41 | 2 | 0.01 | 1 | 0.02 | Intel Mac OS X |
| 42 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 43 | 2 | 0.01 | 2 | 0.03 | Linux [unknown version] |
| 44 | 1 | 0.00 | 1 | 0.02 | J2ME/MIDP |
| 45 | 1 | 0.00 | 1 | 0.02 | FreeBSD [unknown version] |
