| Used Operating Systems |
| 1 | 17373 | 76.30 | 668 | 52.97 | Windows NT |
| 2 | 2783 | 12.22 | 146 | 11.58 | http://help.yahoo.com/help/us/ysearch/sl... |
| 3 | 1012 | 4.44 | 313 | 24.82 | +http://www.google.com/bot.html |
| 4 | 503 | 2.21 | 35 | 2.78 | Windows 98 |
| 5 | 421 | 1.85 | 22 | 1.74 | http://www.dotnetdotcom.org/, crawler@do... |
| 6 | 346 | 1.52 | 2 | 0.16 | +http://www.puritysearch.net/ |
| 7 | 79 | 0.35 | 16 | 1.27 | +http://www.seoprofiler.com/bot |
| 8 | 53 | 0.23 | 9 | 0.71 | Linux i686 [unknown version] |
| 9 | 40 | 0.18 | 10 | 0.79 | +http://yandex.com/bots |
| 10 | 36 | 0.16 | 15 | 1.19 | +http://about.ask.com/en/docs/about/webm... |
| 11 | 30 | 0.13 | 2 | 0.16 | Macintosh |
| 12 | 22 | 0.10 | 3 | 0.24 | Linux [unknown version] |
| 13 | 17 | 0.07 | 7 | 0.56 | PPC Mac OS X Mach-O |
| 14 | 15 | 0.07 | 0 | 0.00 | http://desktop.google.com/ |
| 15 | 12 | 0.05 | 2 | 0.16 | Windows NT 5.2 |
| 16 | 8 | 0.04 | 4 | 0.32 | Intel Mac OS X 10.6 |
| 17 | 6 | 0.03 | 1 | 0.08 | MirrorDetector; +http://yandex.com/bots |
| 18 | 5 | 0.02 | 2 | 0.16 | Intel Mac OS X |
| 19 | 4 | 0.02 | 2 | 0.16 | http://www.majestic12.co.uk/bot.php?+ |
| 20 | 3 | 0.01 | 1 | 0.08 | Intel Mac OS X 10.5 |
| 21 | 1 | 0.00 | 1 | 0.08 | Windows 95 |
