| Used Operating Systems |
| 1 | 4680 | 52.65 | 1726 | 70.05 | Windows NT |
| 2 | 1803 | 20.28 | 104 | 4.22 | Windows 98 |
| 3 | 1159 | 13.04 | 417 | 16.92 | +http://www.bing.com/bingbot.htm |
| 4 | 568 | 6.39 | 24 | 0.97 | http://www.majestic12.co.uk/bot.php?+ |
| 5 | 265 | 2.98 | 60 | 2.44 | +http://yandex.com/bots |
| 6 | 163 | 1.83 | 68 | 2.76 | +http://www.baidu.com/search/spider.html |
| 7 | 120 | 1.35 | 30 | 1.22 | +http://www.google.com/bot.html |
| 8 | 79 | 0.89 | 25 | 1.01 | +http://www.linkdex.com/bots/ |
| 9 | 17 | 0.19 | 0 | 0.00 | X11 |
| 10 | 12 | 0.13 | 0 | 0.00 | Android 2.3.5 |
| 11 | 5 | 0.06 | 0 | 0.00 | Linux [unknown version] |
| 12 | 4 | 0.04 | 0 | 0.00 | Linux 2.4.x |
| 13 | 3 | 0.03 | 3 | 0.12 | Windows 95 |
| 14 | 2 | 0.02 | 1 | 0.04 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 15 | 2 | 0.02 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 16 | 2 | 0.02 | 1 | 0.04 | +info@netcraft.com |
| 17 | 2 | 0.02 | 2 | 0.08 | MSIE 5.5; Windows NT 4.0 |
| 18 | 1 | 0.01 | 1 | 0.04 | +http://136.186.231.16 |
| 19 | 1 | 0.01 | 1 | 0.04 | Windows 3.1 |
| 20 | 1 | 0.01 | 1 | 0.04 | MSIE 5.5; Windows NT 5.0 |
