| Used Operating Systems |
| 1 | 2170 | 59.94 | 454 | 54.57 | Windows NT |
| 2 | 526 | 14.53 | 86 | 10.34 | Intel Mac OS X 10.6 |
| 3 | 489 | 13.51 | 198 | 23.80 | +http://www.google.com/bot.html |
| 4 | 108 | 2.98 | 17 | 2.04 | Intel Mac OS X 10.5 |
| 5 | 85 | 2.35 | 17 | 2.04 | http://www.dotnetdotcom.org/, crawler@do... |
| 6 | 72 | 1.99 | 32 | 3.85 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 52 | 1.44 | 2 | 0.24 | +http://www.puritysearch.net/ |
| 8 | 31 | 0.86 | 2 | 0.24 | +http://yandex.com/bots |
| 9 | 18 | 0.50 | 6 | 0.72 | +http://about.ask.com/en/docs/about/webm... |
| 10 | 14 | 0.39 | 2 | 0.24 | PPC Mac OS X 10.4 |
| 11 | 14 | 0.39 | 2 | 0.24 | Linux [unknown version] |
| 12 | 13 | 0.36 | 4 | 0.48 | Intel Mac OS X 10.4 |
| 13 | 12 | 0.33 | 3 | 0.36 | MirrorDetector; +http://yandex.com/bots |
| 14 | 7 | 0.19 | 3 | 0.36 | +http://www.seoprofiler.com/bot |
| 15 | 4 | 0.11 | 2 | 0.24 | PPC Mac OS X Mach-O |
| 16 | 2 | 0.06 | 0 | 0.00 | http://desktop.google.com/ |
| 17 | 2 | 0.06 | 2 | 0.24 | Windows 98 |
| 18 | 1 | 0.03 | 0 | 0.00 | America Online Browser 1.1; rev1.2; Wind... |
