| Used Operating Systems |
| 1 | 5018 | 52.69 | 1671 | 34.99 | Windows NT |
| 2 | 2011 | 21.12 | 1909 | 39.97 | +http://www.baidu.com/search/spider.html |
| 3 | 466 | 4.89 | 196 | 4.10 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 329 | 3.45 | 149 | 3.12 | +http://www.bing.com/bingbot.htm |
| 5 | 247 | 2.59 | 96 | 2.01 | +http://www.google.com/bot.html |
| 6 | 215 | 2.26 | 57 | 1.19 | +http://yandex.com/bots |
| 7 | 185 | 1.94 | 163 | 3.41 | Windows 95 |
| 8 | 179 | 1.88 | 178 | 3.73 | http://www.yodao.com/help/webmaster/spid... |
| 9 | 132 | 1.39 | 9 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 115 | 1.21 | 31 | 0.65 | +http://ahrefs.com/robot/ |
| 11 | 77 | 0.81 | 30 | 0.63 | Windows 98 |
| 12 | 42 | 0.44 | 21 | 0.44 | ezooms.bot@gmail.com |
| 13 | 41 | 0.43 | 38 | 0.80 | Windows 3.1 |
| 14 | 40 | 0.42 | 10 | 0.21 | http://crawler.sistrix.net/ |
| 15 | 39 | 0.41 | 36 | 0.75 | MSIE 5.5; Windows NT 5.0 |
| 16 | 37 | 0.39 | 12 | 0.25 | Windows XP |
| 17 | 35 | 0.37 | 2 | 0.04 | +http://shoulu.jike.com/spider.html |
| 18 | 33 | 0.35 | 31 | 0.65 | Windows CE |
| 19 | 32 | 0.34 | 30 | 0.63 | Windows 2000 |
| 20 | 32 | 0.34 | 1 | 0.02 | AOL 9.7; AOLBuild 4343.30; Windows NT 6.... |
| 21 | 30 | 0.32 | 15 | 0.31 | +http://www.career-x.de/bot.html |
| 22 | 28 | 0.29 | 25 | 0.52 | Windows ME |
| 23 | 28 | 0.29 | 27 | 0.57 | MSIE 5.5; Windows NT 4.0 |
| 24 | 23 | 0.24 | 3 | 0.06 | Intel Mac OS X 10.6 |
| 25 | 19 | 0.20 | 9 | 0.19 | +http://www.seoprofiler.com/bot |
| 26 | 15 | 0.16 | 5 | 0.10 | +http://www.compspy.com/spider.html |
| 27 | 15 | 0.16 | 1 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 28 | 11 | 0.12 | 1 | 0.02 | PPC Mac OS X 10.4 |
| 29 | 10 | 0.11 | 2 | 0.04 | AOL 9.0; Windows NT 6.0; Trident/5.0; SL... |
| 30 | 10 | 0.11 | 6 | 0.13 | +http://www.q0.com |
| 31 | 6 | 0.06 | 3 | 0.06 | +http://www.exabot.com/go/robot |
| 32 | 6 | 0.06 | 3 | 0.06 | +http://www.acoon.de/robot.asp |
| 33 | 3 | 0.03 | 0 | 0.00 | Macintosh |
| 34 | 2 | 0.02 | 1 | 0.02 | Auto; Windows |
| 35 | 2 | 0.02 | 1 | 0.02 | http://www.botje.com/plukkie.htm |
| 36 | 2 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 37 | 2 | 0.02 | 1 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 38 | 2 | 0.02 | 0 | 0.00 | X11 |
| 39 | 1 | 0.01 | 0 | 0.00 | http://desktop.google.com/ |
| 40 | 1 | 0.01 | 1 | 0.02 | Linux [unknown version] |
| 41 | 1 | 0.01 | 0 | 0.00 | Windows 9x |
| 42 | 1 | 0.01 | 1 | 0.02 | Linux i686 [unknown version] |
