| Used Operating Systems |
| 1 | 325046 | 92.53 | 11265 | 87.80 | Windows NT |
| 2 | 10304 | 2.93 | 259 | 2.02 | +http://www.google.com/bot.html |
| 3 | 2922 | 0.83 | 70 | 0.55 | Macintosh |
| 4 | 2620 | 0.75 | 122 | 0.95 | Linux i686 [unknown version] |
| 5 | 2334 | 0.66 | 523 | 4.08 | http://help.yahoo.com/help/us/ysearch/sl... |
| 6 | 985 | 0.28 | 40 | 0.31 | Intel Mac OS X 10.6 |
| 7 | 978 | 0.28 | 71 | 0.55 | http://www.dotnetdotcom.org/, crawler@do... |
| 8 | 888 | 0.25 | 116 | 0.90 | Windows 98 |
| 9 | 830 | 0.24 | 27 | 0.21 | Intel Mac OS X 10.5 |
| 10 | 595 | 0.17 | 21 | 0.16 | J2ME/MIDP |
| 11 | 524 | 0.15 | 79 | 0.62 | Windows 95 |
| 12 | 500 | 0.14 | 2 | 0.02 | +http://www.puritysearch.net/ |
| 13 | 391 | 0.11 | 15 | 0.12 | X11 |
| 14 | 357 | 0.10 | 15 | 0.12 | Linux [unknown version] |
| 15 | 342 | 0.10 | 16 | 0.12 | http://desktop.google.com/ |
| 16 | 184 | 0.05 | 4 | 0.03 | Intel Mac OS X 10.4 |
| 17 | 153 | 0.04 | 5 | 0.04 | http://www.google.com/bot.html |
| 18 | 147 | 0.04 | 21 | 0.16 | ) - BrowseX (2.0.0 Windows |
| 19 | 144 | 0.04 | 19 | 0.15 | Auto; Windows |
| 20 | 114 | 0.03 | 3 | 0.02 | Windows 9x |
| 21 | 113 | 0.03 | 16 | 0.12 | Windows CE |
| 22 | 92 | 0.03 | 13 | 0.10 | Windows 2000 |
| 23 | 85 | 0.02 | 13 | 0.10 | Windows 3.1 |
| 24 | 84 | 0.02 | 14 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 25 | 79 | 0.02 | 13 | 0.10 | Windows XP |
| 26 | 64 | 0.02 | 10 | 0.08 | MSIE 5.5; Windows NT 5.0 |
| 27 | 40 | 0.01 | 2 | 0.02 | Intel Mac OS X |
| 28 | 40 | 0.01 | 3 | 0.02 | Unknown |
| 29 | 40 | 0.01 | 22 | 0.17 | +http://about.ask.com/en/docs/about/webm... |
| 30 | 39 | 0.01 | 1 | 0.01 | PPC Mac OS X 10.4 |
| 31 | 39 | 0.01 | 1 | 0.01 | Macintosh PPC |
| 32 | 39 | 0.01 | 6 | 0.05 | Windows ME |
| 33 | 38 | 0.01 | 1 | 0.01 | PPC Mac OS X Mach-O |
| 34 | 37 | 0.01 | 6 | 0.05 | +http://yandex.com/bots |
| 35 | 32 | 0.01 | 1 | 0.01 | SunOS sun4u |
| 36 | 20 | 0.01 | 3 | 0.02 | PPC Mac OS X 10.5 |
| 37 | 10 | 0.00 | 3 | 0.02 | +http://www.scoutjet.com/ |
| 38 | 9 | 0.00 | 2 | 0.02 | http://www.majestic12.co.uk/bot.php?+ |
| 39 | 8 | 0.00 | 4 | 0.03 | +http://www.exabot.com/go/robot |
| 40 | 6 | 0.00 | 1 | 0.01 | MirrorDetector; +http://yandex.com/bots |
| 41 | 4 | 0.00 | 2 | 0.02 | http://help.naver.com/customer_webtxt_02... |
| 42 | 3 | 0.00 | 1 | 0.01 | SunOS5.10 sun4u |
| 43 | 2 | 0.00 | 0 | 0.00 | FreeBSD [unknown version] |
