| Used Operating Systems |
| 1 | 13256 | 65.10 | 2604 | 43.54 | Windows NT |
| 2 | 2885 | 14.17 | 2219 | 37.10 | +http://www.baidu.com/search/spider.html |
| 3 | 1006 | 4.94 | 251 | 4.20 | ezooms.bot@gmail.com |
| 4 | 899 | 4.42 | 173 | 2.89 | +http://www.google.com/bot.html |
| 5 | 435 | 2.14 | 200 | 3.34 | +http://ahrefs.com/robot/ |
| 6 | 421 | 2.07 | 6 | 0.10 | http://crawler.sistrix.net/ |
| 7 | 395 | 1.94 | 41 | 0.69 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 361 | 1.77 | 127 | 2.12 | +http://www.bing.com/bingbot.htm |
| 9 | 302 | 1.48 | 114 | 1.91 | +http://yandex.com/bots |
| 10 | 114 | 0.56 | 25 | 0.42 | +http://www.exabot.com/go/robot |
| 11 | 90 | 0.44 | 79 | 1.32 | Windows 95 |
| 12 | 46 | 0.23 | 21 | 0.35 | Windows 98 |
| 13 | 29 | 0.14 | 28 | 0.47 | Windows 3.1 |
| 14 | 21 | 0.10 | 21 | 0.35 | Windows 2000 |
| 15 | 19 | 0.09 | 9 | 0.15 | Windows XP |
| 16 | 19 | 0.09 | 17 | 0.28 | MSIE 5.5; Windows NT 5.0 |
| 17 | 16 | 0.08 | 16 | 0.27 | Windows CE |
| 18 | 16 | 0.08 | 16 | 0.27 | MSIE 5.5; Windows NT 4.0 |
| 19 | 12 | 0.06 | 2 | 0.03 | MirrorDetector; +http://yandex.com/bots |
| 20 | 9 | 0.04 | 9 | 0.15 | Windows ME |
| 21 | 6 | 0.03 | 2 | 0.03 | +http://wummel.github.com/linkchecker/ |
| 22 | 3 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 23 | 2 | 0.01 | 0 | 0.00 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
