| Used Operating Systems |
| 1 | 5355 | 39.53 | 1591 | 49.24 | Windows NT |
| 2 | 2737 | 20.20 | 693 | 21.45 | http://help.yahoo.com/help/us/ysearch/sl... |
| 3 | 2140 | 15.80 | 225 | 6.96 | +http://www.google.com/bot.html |
| 4 | 1154 | 8.52 | 298 | 9.22 | http://www.searchme.com/support/ |
| 5 | 518 | 3.82 | 28 | 0.87 | http://www.dotnetdotcom.org/, crawler@do... |
| 6 | 484 | 3.57 | 0 | 0.00 | Windows 6.0; MSIE 7.0.6001.18000 |
| 7 | 264 | 1.95 | 139 | 4.30 | +http://about.ask.com/en/docs/about/webm... |
| 8 | 150 | 1.11 | 70 | 2.17 | +http://www.exabot.com/go/robot |
| 9 | 134 | 0.99 | 3 | 0.09 | http://www.google.com/bot.html |
| 10 | 102 | 0.75 | 2 | 0.06 | Windows NT 5.2 |
| 11 | 86 | 0.63 | 37 | 1.15 | Linux i686 [unknown version] |
| 12 | 74 | 0.55 | 8 | 0.25 | +http://www.scoutjet.com/ |
| 13 | 73 | 0.54 | 34 | 1.05 | Windows 98 |
| 14 | 66 | 0.49 | 20 | 0.62 | http://help.naver.com/customer_webtxt_02... |
| 15 | 42 | 0.31 | 26 | 0.80 | Win32 |
| 16 | 30 | 0.22 | 9 | 0.28 | PPC Mac OS X Mach-O |
| 17 | 26 | 0.19 | 11 | 0.34 | http://www.youdao.com/help/webmaster/spi... |
| 18 | 25 | 0.18 | 5 | 0.15 | Intel Mac OS X |
| 19 | 24 | 0.18 | 6 | 0.19 | Linux [unknown version] |
| 20 | 20 | 0.15 | 10 | 0.31 | http://misc.yahoo.com.cn/help.html |
| 21 | 12 | 0.09 | 2 | 0.06 | Macintosh PPC |
| 22 | 12 | 0.09 | 2 | 0.06 | Unknown |
| 23 | 6 | 0.04 | 4 | 0.12 | Windows 95 |
| 24 | 4 | 0.03 | 2 | 0.06 | J2ME/MIDP |
| 25 | 4 | 0.03 | 0 | 0.00 | +http://discoveryengine.com/discobot.htm... |
| 26 | 2 | 0.01 | 2 | 0.06 | Windows NT 5.1 |
| 27 | 2 | 0.01 | 2 | 0.06 | +http://www.askpeter.info |
| 28 | 2 | 0.01 | 2 | 0.06 | +info@netcraft.com |
