| Used Operating Systems |
| 1 | 5493 | 43.11 | 1310 | 27.45 | Windows NT |
| 2 | 2201 | 17.27 | 2004 | 41.99 | +http://www.baidu.com/search/spider.html |
| 3 | 1554 | 12.20 | 437 | 9.16 | +http://www.google.com/bot.html |
| 4 | 1010 | 7.93 | 283 | 5.93 | ezooms.bot@gmail.com |
| 5 | 588 | 4.62 | 215 | 4.50 | +http://yandex.com/bots |
| 6 | 477 | 3.74 | 202 | 4.23 | +http://www.bing.com/bingbot.htm |
| 7 | 343 | 2.69 | 1 | 0.02 | +http://swebot.net |
| 8 | 197 | 1.55 | 6 | 0.13 | PPC Mac OS X 10.4 |
| 9 | 192 | 1.51 | 5 | 0.10 | http://kalooga.com/crawler |
| 10 | 159 | 1.25 | 51 | 1.07 | +http://discoveryengine.com/discobot.htm... |
| 11 | 74 | 0.58 | 66 | 1.38 | Windows 95 |
| 12 | 73 | 0.57 | 19 | 0.40 | http://www.majestic12.co.uk/bot.php?+ |
| 13 | 64 | 0.50 | 29 | 0.61 | Windows 98 |
| 14 | 62 | 0.49 | 1 | 0.02 | Intel Mac OS X 10.6 |
| 15 | 45 | 0.35 | 36 | 0.75 | +http://ahrefs.com/robot/ |
| 16 | 33 | 0.26 | 1 | 0.02 | Android 2.2.1 |
| 17 | 22 | 0.17 | 2 | 0.04 | +http://www.aihit.com/ |
| 18 | 22 | 0.17 | 17 | 0.36 | Windows XP |
| 19 | 21 | 0.16 | 20 | 0.42 | MSIE 5.5; Windows NT 4.0 |
| 20 | 20 | 0.16 | 17 | 0.36 | Windows ME |
| 21 | 19 | 0.15 | 19 | 0.40 | Windows 3.1 |
| 22 | 19 | 0.15 | 15 | 0.31 | MSIE 5.5; Windows NT 5.0 |
| 23 | 12 | 0.09 | 2 | 0.04 | Linux i686 [unknown version] |
| 24 | 10 | 0.08 | 8 | 0.17 | Windows CE |
| 25 | 9 | 0.07 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 26 | 4 | 0.03 | 0 | 0.00 | http://desktop.google.com/ |
| 27 | 4 | 0.03 | 4 | 0.08 | Windows 2000 |
| 28 | 4 | 0.03 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 29 | 3 | 0.02 | 1 | 0.02 | ReverseGet/1.0; http://reverseget.com/; ... |
| 30 | 2 | 0.02 | 0 | 0.00 | J2ME/MIDP |
| 31 | 2 | 0.02 | 1 | 0.02 | http://help.yahoo.com/help/us/ysearch/sl... |
| 32 | 2 | 0.02 | 0 | 0.00 | +info@netcraft.com |
| 33 | 1 | 0.01 | 0 | 0.00 | Windows Phone OS 7.5 |
