| Used Operating Systems |
| 1 | 61691 | 58.14 | 460 | 7.08 | +http://www.semrush.com/bot.html |
| 2 | 23121 | 21.79 | 218 | 3.36 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 12069 | 11.37 | 2 | 0.03 | +http://megaindex.com/crawler |
| 4 | 4753 | 4.48 | 3772 | 58.08 | +http://www.baidu.com/search/spider.html |
| 5 | 1670 | 1.57 | 725 | 11.16 | Windows NT |
| 6 | 702 | 0.66 | 374 | 5.76 | +http://www.bing.com/bingbot.htm |
| 7 | 622 | 0.59 | 344 | 5.30 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 354 | 0.33 | 95 | 1.46 | +http://www.linkdex.com/bots/ |
| 9 | 340 | 0.32 | 118 | 1.82 | +http://yandex.com/bots |
| 10 | 333 | 0.31 | 145 | 2.23 | +http://www.google.com/bot.html |
| 11 | 170 | 0.16 | 68 | 1.05 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 65 | 0.06 | 34 | 0.52 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 57 | 0.05 | 47 | 0.72 | +http://www.uptime.com/uptimebot |
| 14 | 27 | 0.03 | 18 | 0.28 | Windows 98 |
| 15 | 22 | 0.02 | 9 | 0.14 | Windows XP |
| 16 | 16 | 0.02 | 1 | 0.02 | +http://www.privacyaware.org |
| 17 | 16 | 0.02 | 16 | 0.25 | +http://www.xovibot.net/ |
| 18 | 14 | 0.01 | 8 | 0.12 | +http://www.exabot.com/go/robot |
| 19 | 12 | 0.01 | 1 | 0.02 | +http://www.linkpad.ru |
| 20 | 10 | 0.01 | 9 | 0.14 | Windows 95 |
| 21 | 6 | 0.01 | 3 | 0.05 | Windows ME |
| 22 | 5 | 0.00 | 1 | 0.02 | X11 |
| 23 | 4 | 0.00 | 4 | 0.06 | Windows 2000 |
| 24 | 4 | 0.00 | 4 | 0.06 | Auto; Windows |
| 25 | 4 | 0.00 | 3 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 26 | 4 | 0.00 | 3 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 27 | 3 | 0.00 | 0 | 0.00 | J2ME/MIDP |
| 28 | 3 | 0.00 | 2 | 0.03 | Android 2.3.5 |
| 29 | 3 | 0.00 | 2 | 0.03 | +info@netcraft.com |
| 30 | 3 | 0.00 | 3 | 0.05 | ) - BrowseX (2.0.0 Windows |
| 31 | 2 | 0.00 | 2 | 0.03 | Windows 3.1 |
| 32 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 33 | 2 | 0.00 | 1 | 0.02 | +http://duckduckgo.com |
| 34 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 35 | 1 | 0.00 | 0 | 0.00 | MAUI Runtime |
| 36 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
