| Used Operating Systems |
| 1 | 16505 | 63.16 | 2582 | 38.76 | Windows NT |
| 2 | 2780 | 10.64 | 2432 | 36.51 | +http://www.baidu.com/search/spider.html |
| 3 | 1610 | 6.16 | 269 | 4.04 | http://www.yodao.com/help/webmaster/spid... |
| 4 | 1174 | 4.49 | 469 | 7.04 | +http://www.bing.com/bingbot.htm |
| 5 | 1169 | 4.47 | 56 | 0.84 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 767 | 2.94 | 264 | 3.96 | +http://www.google.com/bot.html |
| 7 | 469 | 1.79 | 144 | 2.16 | +http://yandex.com/bots |
| 8 | 298 | 1.14 | 80 | 1.20 | Windows 95 |
| 9 | 283 | 1.08 | 79 | 1.19 | Windows 98 |
| 10 | 176 | 0.67 | 81 | 1.22 | +http://ahrefs.com/robot/ |
| 11 | 110 | 0.42 | 12 | 0.18 | J2ME/MIDP |
| 12 | 107 | 0.41 | 39 | 0.59 | ezooms.bot@gmail.com |
| 13 | 86 | 0.33 | 8 | 0.12 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 85 | 0.33 | 11 | 0.17 | Linux i686 [unknown version] |
| 15 | 70 | 0.27 | 22 | 0.33 | MSIE 5.5; Windows NT 5.0 |
| 16 | 64 | 0.24 | 19 | 0.29 | Windows 3.1 |
| 17 | 63 | 0.24 | 19 | 0.29 | Windows CE |
| 18 | 59 | 0.23 | 15 | 0.23 | Windows 2000 |
| 19 | 40 | 0.15 | 12 | 0.18 | Windows XP |
| 20 | 35 | 0.13 | 12 | 0.18 | MSIE 5.5; Windows NT 4.0 |
| 21 | 26 | 0.10 | 4 | 0.06 | X11 |
| 22 | 22 | 0.08 | 2 | 0.03 | Intel Mac OS X 10.5 |
| 23 | 21 | 0.08 | 7 | 0.11 | Windows ME |
| 24 | 16 | 0.06 | 2 | 0.03 | +http://www.aihit.com/ |
| 25 | 16 | 0.06 | 3 | 0.05 | +http://www.exabot.com/go/robot |
| 26 | 14 | 0.05 | 1 | 0.02 | Series 60 |
| 27 | 11 | 0.04 | 2 | 0.03 | Auto; Windows |
| 28 | 8 | 0.03 | 0 | 0.00 | http://desktop.google.com/ |
| 29 | 6 | 0.02 | 3 | 0.05 | +http://discoveryengine.com/discobot.htm... |
| 30 | 6 | 0.02 | 3 | 0.05 | +http://www.seoprofiler.com/bot |
| 31 | 5 | 0.02 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 32 | 4 | 0.02 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 33 | 4 | 0.02 | 1 | 0.02 | Linux [unknown version] |
| 34 | 4 | 0.02 | 0 | 0.00 | Mac_PowerPC; en |
| 35 | 4 | 0.02 | 2 | 0.03 | Macintosh |
| 36 | 4 | 0.02 | 2 | 0.03 | +http://www.ask.com/about/help/webmaster... |
| 37 | 3 | 0.01 | 1 | 0.02 | +http://shoulu.jike.com/spider.html |
| 38 | 2 | 0.01 | 1 | 0.02 | SunOS sun4u |
| 39 | 2 | 0.01 | 0 | 0.00 | +info@netcraft.com |
| 40 | 2 | 0.01 | 1 | 0.02 | FreeBSD [unknown version] |
| 41 | 1 | 0.00 | 0 | 0.00 | Android |
| 42 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
