| Used Operating Systems |
| 1 | 390 | 25.71 | 2 | 0.48 | +http://www.puritysearch.net/ |
| 2 | 380 | 25.05 | 131 | 31.57 | Windows NT |
| 3 | 369 | 24.32 | 178 | 42.89 | +http://www.google.com/bot.html |
| 4 | 115 | 7.58 | 21 | 5.06 | Intel Mac OS X 10.6 |
| 5 | 110 | 7.25 | 24 | 5.78 | Intel Mac OS X 10.5 |
| 6 | 86 | 5.67 | 35 | 8.43 | +http://about.ask.com/en/docs/about/webm... |
| 7 | 24 | 1.58 | 6 | 1.45 | Intel Mac OS X 10.4 |
| 8 | 16 | 1.05 | 5 | 1.20 | SunOS sun4u |
| 9 | 10 | 0.66 | 4 | 0.96 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 6 | 0.40 | 3 | 0.72 | http://www.dotnetdotcom.org/, crawler@do... |
| 11 | 6 | 0.40 | 3 | 0.72 | http://www.majestic12.co.uk/bot.php?+ |
| 12 | 4 | 0.26 | 2 | 0.48 | +http://www.seoprofiler.com/bot/ |
| 13 | 1 | 0.07 | 1 | 0.24 | Windows 98 |
