| Used Operating Systems |
| 1 | 15014 | 81.93 | 838 | 48.92 | Windows NT |
| 2 | 1088 | 5.94 | 346 | 20.20 | +http://www.google.com/bot.html |
| 3 | 436 | 2.38 | 106 | 6.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 4 | 400 | 2.18 | 2 | 0.12 | +http://www.puritysearch.net/ |
| 5 | 337 | 1.84 | 69 | 4.03 | Windows 98 |
| 6 | 157 | 0.86 | 68 | 3.97 | AmigaOS |
| 7 | 122 | 0.67 | 55 | 3.21 | Linux [unknown version] |
| 8 | 88 | 0.48 | 5 | 0.29 | +http://www.seoprofiler.com/bot/ |
| 9 | 72 | 0.39 | 20 | 1.17 | FreeBSD [unknown version] |
| 10 | 65 | 0.35 | 2 | 0.12 | Windows 95 |
| 11 | 65 | 0.35 | 32 | 1.87 | Linux i686 [unknown version] |
| 12 | 55 | 0.30 | 22 | 1.28 | BeOS |
| 13 | 47 | 0.26 | 19 | 1.11 | AmigaOS4.0 |
| 14 | 47 | 0.26 | 24 | 1.40 | Macintosh; U; PPC; Mac OS X |
| 15 | 45 | 0.25 | 1 | 0.06 | Amiga OS |
| 16 | 35 | 0.19 | 7 | 0.41 | Linux 2.4.x |
| 17 | 32 | 0.17 | 5 | 0.29 | SaferSurf; DigExt |
| 18 | 30 | 0.16 | 4 | 0.23 | OpenBSD [unknown version] |
| 19 | 30 | 0.16 | 14 | 0.82 | DB OS 6.0 |
| 20 | 27 | 0.15 | 13 | 0.76 | Commodore 64 |
| 21 | 26 | 0.14 | 12 | 0.70 | Macintosh PPC |
| 22 | 24 | 0.13 | 15 | 0.88 | Symbian OS/1.1.0 |
| 23 | 23 | 0.13 | 11 | 0.64 | Darwin |
| 24 | 20 | 0.11 | 9 | 0.53 | Chimera |
| 25 | 10 | 0.05 | 0 | 0.00 | http://help.naver.com/customer_webtxt_02... |
| 26 | 8 | 0.04 | 3 | 0.18 | http://www.search17.com/bot.php |
| 27 | 6 | 0.03 | 0 | 0.00 | http://www.dotnetdotcom.org/, crawler@do... |
| 28 | 6 | 0.03 | 1 | 0.06 | Intel Mac OS X 10.6 |
| 29 | 4 | 0.02 | 4 | 0.23 | Intel Mac OS X 10.5 |
| 30 | 2 | 0.01 | 2 | 0.12 | Windows 2000 |
| 31 | 2 | 0.01 | 2 | 0.12 | +info@netcraft.com |
| 32 | 2 | 0.01 | 2 | 0.12 | Windows 3.1 |
