| Used Operating Systems |
| 1 | 4565 | 54.77 | 956 | 55.87 | Windows NT |
| 2 | 1769 | 21.22 | 100 | 5.84 | Windows 98 |
| 3 | 647 | 7.76 | 217 | 12.68 | +http://www.google.com/bot.html |
| 4 | 266 | 3.19 | 67 | 3.92 | http://help.yahoo.com/help/us/ysearch/sl... |
| 5 | 123 | 1.48 | 62 | 3.62 | AmigaOS |
| 6 | 106 | 1.27 | 44 | 2.57 | Linux [unknown version] |
| 7 | 102 | 1.22 | 2 | 0.12 | Windows NT 5.2 |
| 8 | 75 | 0.90 | 34 | 1.99 | Linux i686 [unknown version] |
| 9 | 55 | 0.66 | 7 | 0.41 | +http://www.seoprofiler.com/bot/ |
| 10 | 52 | 0.62 | 5 | 0.29 | http://www.dotnetdotcom.org/, crawler@do... |
| 11 | 48 | 0.58 | 6 | 0.35 | +http://www.scoutjet.com/ |
| 12 | 44 | 0.53 | 24 | 1.40 | AmigaOS4.0 |
| 13 | 43 | 0.52 | 16 | 0.94 | FreeBSD [unknown version] |
| 14 | 42 | 0.50 | 2 | 0.12 | Windows 95 |
| 15 | 38 | 0.46 | 20 | 1.17 | Macintosh; U; PPC; Mac OS X |
| 16 | 38 | 0.46 | 17 | 0.99 | +http://www.exabot.com/go/robot |
| 17 | 34 | 0.41 | 15 | 0.88 | BeOS |
| 18 | 28 | 0.34 | 13 | 0.76 | Commodore 64 |
| 19 | 26 | 0.31 | 4 | 0.23 | +http://www.aihit.com/ |
| 20 | 24 | 0.29 | 0 | 0.00 | Amiga OS |
| 21 | 23 | 0.28 | 14 | 0.82 | Darwin |
| 22 | 22 | 0.26 | 10 | 0.58 | Chimera |
| 23 | 22 | 0.26 | 3 | 0.18 | Linux 2.4.x |
| 24 | 20 | 0.24 | 5 | 0.29 | SaferSurf; DigExt |
| 25 | 18 | 0.22 | 11 | 0.64 | DB OS 6.0 |
| 26 | 18 | 0.22 | 7 | 0.41 | Symbian OS/1.1.0 |
| 27 | 16 | 0.19 | 10 | 0.58 | Macintosh PPC |
| 28 | 14 | 0.17 | 4 | 0.23 | MSIE 5.5; Windows NT 5.0 |
| 29 | 13 | 0.16 | 3 | 0.18 | OpenBSD [unknown version] |
| 30 | 8 | 0.10 | 4 | 0.23 | http://www.majestic12.co.uk/bot.php?+ |
| 31 | 6 | 0.07 | 3 | 0.18 | Intel Mac OS X |
| 32 | 5 | 0.06 | 4 | 0.23 | PPC Mac OS X Mach-O |
| 33 | 4 | 0.05 | 4 | 0.23 | Windows CE |
| 34 | 4 | 0.05 | 4 | 0.23 | MSIE 5.5; Windows NT 4.0 |
| 35 | 4 | 0.05 | 2 | 0.12 | +http://about.ask.com/en/docs/about/webm... |
| 36 | 3 | 0.04 | 3 | 0.18 | Windows 3.1 |
| 37 | 2 | 0.02 | 2 | 0.12 | +http://www.google.com |
| 38 | 2 | 0.02 | 2 | 0.12 | ) - BrowseX (2.0.0 Windows |
| 39 | 2 | 0.02 | 2 | 0.12 | +http://www.dnsdigger.com |
| 40 | 1 | 0.01 | 0 | 0.00 | Windows XP |
| 41 | 1 | 0.01 | 1 | 0.06 | http://www.orgtheweb.org |
| 42 | 1 | 0.01 | 1 | 0.06 | +info@netcraft.com |
| 43 | 1 | 0.01 | 1 | 0.06 | Windows ME |
