| Used Operating Systems |
| 1 | 19002 | 71.18 | 479 | 12.23 | Windows NT |
| 2 | 3167 | 11.86 | 2662 | 67.99 | +http://www.baidu.com/search/spider.html |
| 3 | 850 | 3.18 | 10 | 0.26 | Intel Mac OS X 10.6 |
| 4 | 794 | 2.97 | 75 | 1.92 | +http://yandex.com/bots |
| 5 | 540 | 2.02 | 8 | 0.20 | Intel Mac OS X 10.5 |
| 6 | 530 | 1.99 | 136 | 3.47 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 327 | 1.22 | 146 | 3.73 | +http://www.bing.com/bingbot.htm |
| 8 | 317 | 1.19 | 128 | 3.27 | +http://www.google.com/bot.html |
| 9 | 278 | 1.04 | 128 | 3.27 | http://www.majestic12.co.uk/bot.php?+ |
| 10 | 176 | 0.66 | 2 | 0.05 | PPC Mac OS X 10.5 |
| 11 | 139 | 0.52 | 5 | 0.13 | PPC Mac OS X 10.4 |
| 12 | 80 | 0.30 | 10 | 0.26 | +http://www.scoutjet.com/ |
| 13 | 80 | 0.30 | 31 | 0.79 | http://www.search17.com/bot.php |
| 14 | 64 | 0.24 | 5 | 0.13 | Linux [unknown version] |
| 15 | 53 | 0.20 | 11 | 0.28 | Windows 98 |
| 16 | 42 | 0.16 | 6 | 0.15 | Linux i686 [unknown version] |
| 17 | 32 | 0.12 | 7 | 0.18 | MirrorDetector; +http://yandex.com/bots |
| 18 | 32 | 0.12 | 13 | 0.33 | ezooms.bot@gmail.com |
| 19 | 30 | 0.11 | 16 | 0.41 | +http://www.exabot.com/go/robot |
| 20 | 26 | 0.10 | 13 | 0.33 | http://misc.yahoo.com.cn/help.html |
| 21 | 26 | 0.10 | 2 | 0.05 | +http://www.puritysearch.net/ |
| 22 | 24 | 0.09 | 5 | 0.13 | +http://www.idrc.ca/cp/ev-136691-201-1-D... |
| 23 | 18 | 0.07 | 7 | 0.18 | +http://www.seoprofiler.com/bot |
| 24 | 18 | 0.07 | 2 | 0.05 | +http://www.sitebot.org/robot/ |
| 25 | 17 | 0.06 | 0 | 0.00 | +http://discoveryengine.com/discobot.htm... |
| 26 | 14 | 0.05 | 0 | 0.00 | http://desktop.google.com/ |
| 27 | 8 | 0.03 | 2 | 0.05 | http://www.dotnetdotcom.org/, crawler@do... |
| 28 | 8 | 0.03 | 4 | 0.10 | +info@netcraft.com |
| 29 | 2 | 0.01 | 2 | 0.05 | +http://pmoz.info/doc/botinfo.htm |
