| Used Operating Systems |
| 1 | 8805 | 50.68 | 2353 | 41.17 | Windows NT |
| 2 | 2553 | 14.69 | 2252 | 39.41 | +http://www.baidu.com/search/spider.html |
| 3 | 1858 | 10.69 | 326 | 5.70 | ezooms.bot@gmail.com |
| 4 | 1394 | 8.02 | 116 | 2.03 | +http://ahrefs.com/robot/ |
| 5 | 662 | 3.81 | 61 | 1.07 | http://www.majestic12.co.uk/bot.php?+ |
| 6 | 469 | 2.70 | 94 | 1.64 | +http://yandex.com/bots |
| 7 | 456 | 2.62 | 6 | 0.10 | http://crawler.sistrix.net/ |
| 8 | 419 | 2.41 | 150 | 2.62 | +http://www.bing.com/bingbot.htm |
| 9 | 288 | 1.66 | 60 | 1.05 | +http://www.google.com/bot.html |
| 10 | 110 | 0.63 | 93 | 1.63 | Windows 95 |
| 11 | 95 | 0.55 | 30 | 0.52 | +http://www.exabot.com/go/robot |
| 12 | 63 | 0.36 | 27 | 0.47 | Windows 98 |
| 13 | 31 | 0.18 | 24 | 0.42 | Windows 3.1 |
| 14 | 24 | 0.14 | 22 | 0.38 | Windows CE |
| 15 | 24 | 0.14 | 22 | 0.38 | Windows 2000 |
| 16 | 23 | 0.13 | 11 | 0.19 | Windows XP |
| 17 | 22 | 0.13 | 3 | 0.05 | MirrorDetector; +http://yandex.com/bots |
| 18 | 21 | 0.12 | 18 | 0.31 | MSIE 5.5; Windows NT 5.0 |
| 19 | 20 | 0.12 | 19 | 0.33 | Windows ME |
| 20 | 20 | 0.12 | 20 | 0.35 | MSIE 5.5; Windows NT 4.0 |
| 21 | 6 | 0.03 | 0 | 0.00 | http://www.tkl.iis.u-tokyo.ac.jp/~crawle... |
| 22 | 3 | 0.02 | 2 | 0.03 | +info@netcraft.com |
| 23 | 2 | 0.01 | 2 | 0.03 | +http://www.netseer.com/crawler.html; cr... |
| 24 | 2 | 0.01 | 2 | 0.03 | Linux i686 [unknown version] |
| 25 | 2 | 0.01 | 0 | 0.00 | +http://www.acoon.de/robot.asp |
| 26 | 1 | 0.01 | 1 | 0.02 | Android 2.3.5 |
| 27 | 1 | 0.01 | 1 | 0.02 | X11 |
