| Used Operating Systems |
| 1 | 3876 | 37.51 | 816 | 20.71 | Windows NT |
| 2 | 2532 | 24.50 | 2173 | 55.15 | +http://www.baidu.com/search/spider.html |
| 3 | 1416 | 13.70 | 574 | 14.57 | +http://www.google.com/bot.html |
| 4 | 736 | 7.12 | 26 | 0.66 | Windows 98 |
| 5 | 484 | 4.68 | 27 | 0.69 | +http://yandex.com/bots |
| 6 | 357 | 3.45 | 7 | 0.18 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 250 | 2.42 | 104 | 2.64 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 97 | 0.94 | 9 | 0.23 | +http://www.scoutjet.com/ |
| 9 | 89 | 0.86 | 43 | 1.09 | +http://www.bing.com/bingbot.htm |
| 10 | 85 | 0.82 | 39 | 0.99 | ezooms.bot@gmail.com |
| 11 | 52 | 0.50 | 13 | 0.33 | +http://ahrefs.com/robot/ |
| 12 | 42 | 0.41 | 2 | 0.05 | Intel Mac OS X 10.6 |
| 13 | 40 | 0.39 | 2 | 0.05 | Windows Phone OS 7.5 |
| 14 | 40 | 0.39 | 20 | 0.51 | Windows 95 |
| 15 | 27 | 0.26 | 1 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 16 | 22 | 0.21 | 2 | 0.05 | http://www.nerdbynature.net/bot |
| 17 | 22 | 0.21 | 2 | 0.05 | +http://www.aihit.com/ |
| 18 | 22 | 0.21 | 2 | 0.05 | +http://www.puritysearch.net/ |
| 19 | 20 | 0.19 | 1 | 0.03 | J2ME/MIDP |
| 20 | 18 | 0.17 | 8 | 0.20 | +http://www.seoprofiler.com/bot |
| 21 | 15 | 0.15 | 1 | 0.03 | Linux i686 [unknown version] |
| 22 | 12 | 0.12 | 10 | 0.25 | Windows 3.1 |
| 23 | 9 | 0.09 | 9 | 0.23 | Windows 2000 |
| 24 | 9 | 0.09 | 9 | 0.23 | Windows XP |
| 25 | 8 | 0.08 | 2 | 0.05 | +http://domains.checkparams.com/ |
| 26 | 6 | 0.06 | 6 | 0.15 | Windows ME |
| 27 | 6 | 0.06 | 2 | 0.05 | +info@netcraft.com |
| 28 | 6 | 0.06 | 3 | 0.08 | http://www.search17.com/bot.php |
| 29 | 6 | 0.06 | 3 | 0.08 | +http://www.exabot.com/go/robot |
| 30 | 5 | 0.05 | 5 | 0.13 | MSIE 5.5; Windows NT 5.0 |
| 31 | 4 | 0.04 | 4 | 0.10 | Windows CE |
| 32 | 4 | 0.04 | 4 | 0.10 | +http://pmoz.info/doc/botinfo.htm |
| 33 | 4 | 0.04 | 4 | 0.10 | MSIE 5.5; Windows NT 4.0 |
| 34 | 3 | 0.03 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 35 | 2 | 0.02 | 0 | 0.00 | http://desktop.google.com/ |
| 36 | 2 | 0.02 | 2 | 0.05 | +http://discoveryengine.com/discobot.htm... |
| 37 | 2 | 0.02 | 2 | 0.05 | Linux [unknown version] |
| 38 | 2 | 0.02 | 2 | 0.05 | X11 |
| 39 | 1 | 0.01 | 1 | 0.03 | Auto; Windows |
