| Used Operating Systems |
| 1 | 1763 | 56.51 | 790 | 57.12 | Windows NT |
| 2 | 371 | 11.89 | 108 | 7.81 | Windows 98 |
| 3 | 316 | 10.13 | 103 | 7.45 | +http://www.google.com/bot.html |
| 4 | 97 | 3.11 | 29 | 2.10 | Linux i686 [unknown version] |
| 5 | 85 | 2.72 | 29 | 2.10 | http://help.yahoo.com/help/us/ysearch/sl... |
| 6 | 54 | 1.73 | 24 | 1.74 | +http://www.exabot.com/go/robot |
| 7 | 53 | 1.70 | 35 | 2.53 | Linux [unknown version] |
| 8 | 44 | 1.41 | 31 | 2.24 | PPC Mac OS X Mach-O |
| 9 | 40 | 1.28 | 20 | 1.45 | +http://about.ask.com/en/docs/about/webm... |
| 10 | 39 | 1.25 | 38 | 2.75 | AmigaOS |
| 11 | 32 | 1.03 | 1 | 0.07 | +http://www.dontbuylists.com/ |
| 12 | 24 | 0.77 | 22 | 1.59 | Windows 95 |
| 13 | 22 | 0.71 | 20 | 1.45 | Macintosh; U; PPC; Mac OS X |
| 14 | 17 | 0.54 | 15 | 1.08 | Intel Mac OS X |
| 15 | 14 | 0.45 | 5 | 0.36 | +http://www.scoutjet.com/ |
| 16 | 14 | 0.45 | 14 | 1.01 | FreeBSD [unknown version] |
| 17 | 13 | 0.42 | 10 | 0.72 | Macintosh PPC |
| 18 | 13 | 0.42 | 11 | 0.80 | Amiga OS |
| 19 | 11 | 0.35 | 11 | 0.80 | AmigaOS4.0 |
| 20 | 10 | 0.32 | 4 | 0.29 | http://www.searchme.com/support/ |
| 21 | 10 | 0.32 | 9 | 0.65 | Chimera |
| 22 | 8 | 0.26 | 8 | 0.58 | BeOS |
| 23 | 7 | 0.22 | 6 | 0.43 | OpenBSD [unknown version] |
| 24 | 6 | 0.19 | 0 | 0.00 | J2ME/MIDP |
| 25 | 6 | 0.19 | 4 | 0.29 | +http://discoveryengine.com/discobot.htm... |
| 26 | 6 | 0.19 | 4 | 0.29 | DB OS 6.0 |
| 27 | 6 | 0.19 | 5 | 0.36 | Commodore 64 |
| 28 | 4 | 0.13 | 2 | 0.14 | Windows XP |
| 29 | 4 | 0.13 | 2 | 0.14 | +info@netcraft.com |
| 30 | 4 | 0.13 | 4 | 0.29 | Symbian OS/1.1.0 |
| 31 | 4 | 0.13 | 2 | 0.14 | http://www.majestic12.co.uk/bot.php?+ |
| 32 | 4 | 0.13 | 2 | 0.14 | Windows NT 5.2 |
| 33 | 4 | 0.13 | 2 | 0.14 | http://www.google.com/bot.html |
| 34 | 3 | 0.10 | 3 | 0.22 | Windows 2000 |
| 35 | 3 | 0.10 | 3 | 0.22 | Linux 2.4.x |
| 36 | 2 | 0.06 | 1 | 0.07 | SaferSurf; DigExt |
| 37 | 2 | 0.06 | 2 | 0.14 | Windows CE |
| 38 | 2 | 0.06 | 1 | 0.07 | http://www.dotnetdotcom.org/, crawler@do... |
| 39 | 2 | 0.06 | 2 | 0.14 | Windows ME |
| 40 | 1 | 0.03 | 1 | 0.07 | Windows 3.1 |
