| Used Operating Systems |
| 1 | 32139 | 49.33 | 1411 | 35.91 | Windows NT |
| 2 | 25532 | 39.19 | 1317 | 33.52 | +http://www.google.com/bot.html |
| 3 | 2733 | 4.20 | 646 | 16.44 | http://help.yahoo.com/help/us/ysearch/sl... |
| 4 | 1060 | 1.63 | 32 | 0.81 | Linux i686 [unknown version] |
| 5 | 667 | 1.02 | 15 | 0.38 | Intel Mac OS X 10.5 |
| 6 | 618 | 0.95 | 302 | 7.69 | +http://yandex.com/bots |
| 7 | 498 | 0.76 | 3 | 0.08 | PPC Mac OS X 10.4 |
| 8 | 484 | 0.74 | 1 | 0.03 | +http://www.puritysearch.net/ |
| 9 | 231 | 0.35 | 21 | 0.53 | MirrorDetector; +http://yandex.com/bots |
| 10 | 224 | 0.34 | 9 | 0.23 | Intel Mac OS X 10.6 |
| 11 | 214 | 0.33 | 3 | 0.08 | http://www.majestic12.co.uk/bot.php?+ |
| 12 | 180 | 0.28 | 1 | 0.03 | PPC Mac OS X 10.5 |
| 13 | 165 | 0.25 | 9 | 0.23 | +http://www.scoutjet.com/ |
| 14 | 75 | 0.12 | 14 | 0.36 | PPC Mac OS X Mach-O |
| 15 | 75 | 0.12 | 55 | 1.40 | Windows 98 |
| 16 | 63 | 0.10 | 30 | 0.76 | +http://about.ask.com/en/docs/about/webm... |
| 17 | 50 | 0.08 | 5 | 0.13 | http://www.dotnetdotcom.org/, crawler@do... |
| 18 | 28 | 0.04 | 14 | 0.36 | http://misc.yahoo.com.cn/help.html |
| 19 | 19 | 0.03 | 0 | 0.00 | Intel Mac OS X 10.4 |
| 20 | 12 | 0.02 | 5 | 0.13 | +http://www.exabot.com/go/robot |
| 21 | 11 | 0.02 | 0 | 0.00 | http://desktop.google.com/ |
| 22 | 8 | 0.01 | 0 | 0.00 | Linux [unknown version] |
| 23 | 8 | 0.01 | 4 | 0.10 | +http://www.seoprofiler.com/bot |
| 24 | 7 | 0.01 | 1 | 0.03 | J2ME/MIDP |
| 25 | 7 | 0.01 | 5 | 0.13 | Intel Mac OS X |
| 26 | 6 | 0.01 | 1 | 0.03 | FreeBSD [unknown version] |
| 27 | 4 | 0.01 | 4 | 0.10 | Windows 95 |
| 28 | 4 | 0.01 | 4 | 0.10 | ) - BrowseX (2.0.0 Windows |
| 29 | 4 | 0.01 | 1 | 0.03 | Macintosh |
| 30 | 2 | 0.00 | 2 | 0.05 | Windows CE |
| 31 | 2 | 0.00 | 2 | 0.05 | Macintosh PPC |
| 32 | 2 | 0.00 | 1 | 0.03 | Windows XP |
| 33 | 2 | 0.00 | 2 | 0.05 | Windows ME |
| 34 | 2 | 0.00 | 1 | 0.03 | +http://www.hailoo.com/spider.html |
| 35 | 2 | 0.00 | 1 | 0.03 | [email protected] |
| 36 | 2 | 0.00 | 1 | 0.03 | http://www.kilomonkey.com/notabot.txt |
| 37 | 1 | 0.00 | 1 | 0.03 | Windows 2000 |
| 38 | 1 | 0.00 | 1 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 39 | 1 | 0.00 | 1 | 0.03 | +http://www.baidu.com/search/spider.htm |
| 40 | 1 | 0.00 | 1 | 0.03 | Windows NT 5.2 |
| 41 | 1 | 0.00 | 1 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 42 | 1 | 0.00 | 1 | 0.03 | Windows 3.1 |
