| Used Operating Systems by Visits |
| 1 | 2644 | 23.83 | 2308 | 45.90 | +http://www.baidu.com/search/spider.html |
| 2 | 4966 | 44.76 | 1227 | 24.40 | Windows NT |
| 3 | 1342 | 12.10 | 562 | 11.18 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 450 | 4.06 | 172 | 3.42 | +http://www.google.com/bot.html |
| 5 | 140 | 1.26 | 140 | 2.78 | http://www.yodao.com/help/webmaster/spid... |
| 6 | 300 | 2.70 | 129 | 2.57 | +http://www.bing.com/bingbot.htm |
| 7 | 417 | 3.76 | 124 | 2.47 | +http://yandex.com/bots |
| 8 | 99 | 0.89 | 77 | 1.53 | Windows 95 |
| 9 | 59 | 0.53 | 31 | 0.62 | Windows 98 |
| 10 | 56 | 0.50 | 28 | 0.56 | ezooms.bot@gmail.com |
| 11 | 30 | 0.27 | 24 | 0.48 | MSIE 5.5; Windows NT 5.0 |
| 12 | 19 | 0.17 | 17 | 0.34 | Windows 2000 |
| 13 | 17 | 0.15 | 17 | 0.34 | Windows CE |
| 14 | 37 | 0.33 | 17 | 0.34 | +http://ahrefs.com/robot/ |
| 15 | 21 | 0.19 | 17 | 0.34 | Windows XP |
| 16 | 24 | 0.22 | 17 | 0.34 | Windows ME |
| 17 | 59 | 0.53 | 15 | 0.30 | http://crawler.sistrix.net/ |
| 18 | 14 | 0.13 | 14 | 0.28 | MSIE 5.5; Windows NT 4.0 |
| 19 | 15 | 0.14 | 13 | 0.26 | Windows 3.1 |
| 20 | 25 | 0.23 | 13 | 0.26 | +http://www.acoon.de/robot.asp |
| 21 | 17 | 0.15 | 9 | 0.18 | +http://discoveryengine.com/discobot.htm... |
| 22 | 16 | 0.14 | 8 | 0.16 | +http://www.seoprofiler.com/bot |
| 23 | 81 | 0.73 | 6 | 0.12 | http://help.yahoo.com/help/us/ysearch/sl... |
| 24 | 52 | 0.47 | 6 | 0.12 | Intel Mac OS X 10.6 |
| 25 | 12 | 0.11 | 6 | 0.12 | +http://www.exabot.com/go/robot |
| 26 | 12 | 0.11 | 6 | 0.12 | +http://shoulu.jike.com/spider.html |
| 27 | 18 | 0.16 | 3 | 0.06 | http://www.nerdbynature.net/bot |
| 28 | 6 | 0.05 | 3 | 0.06 | +http://www.eventguru.com/spider.html |
| 29 | 49 | 0.44 | 2 | 0.04 | Intel Mac OS X 10.5 |
| 30 | 2 | 0.02 | 2 | 0.04 | http://nmap.org/book/nse.html |
| 31 | 21 | 0.19 | 2 | 0.04 | Linux i686 [unknown version] |
| 32 | 4 | 0.04 | 2 | 0.04 | http://www.youdao.com/help/webmaster/spi... |
| 33 | 4 | 0.04 | 2 | 0.04 | +info@netcraft.com |
| 34 | 4 | 0.04 | 2 | 0.04 | +http://domains.checkparams.com/ |
| 35 | 8 | 0.07 | 2 | 0.04 | ScoutJet; +http://blekko.com/about/blekk... |
| 36 | 1 | 0.01 | 1 | 0.02 | Auto; Windows |
| 37 | 10 | 0.09 | 1 | 0.02 | +http://www.aihit.com/ |
| 38 | 9 | 0.08 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 39 | 2 | 0.02 | 1 | 0.02 | Linux [unknown version] |
| 40 | 23 | 0.21 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 41 | 4 | 0.04 | 0 | 0.00 | http://desktop.google.com/ |
| 42 | 5 | 0.05 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
