| Used Operating Systems |
| 1 | 23378 | 32.69 | 32 | 0.28 | +http://ahrefs.com/robot/ |
| 2 | 19986 | 27.95 | 166 | 1.47 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 9585 | 13.40 | 2261 | 20.02 | +http://www.xovibot.net/ |
| 4 | 6084 | 8.51 | 4900 | 43.39 | +http://www.baidu.com/search/spider.html |
| 5 | 5487 | 7.67 | 1952 | 17.28 | Windows NT |
| 6 | 1946 | 2.72 | 22 | 0.19 | +http://OpenLinkProfiler.org/bot |
| 7 | 1824 | 2.55 | 834 | 7.38 | +http://www.google.com/bot.html |
| 8 | 811 | 1.13 | 226 | 2.00 | +http://yandex.com/bots |
| 9 | 513 | 0.72 | 4 | 0.04 | +http://www.warebay.com/bot.html |
| 10 | 502 | 0.70 | 222 | 1.97 | +http://www.bing.com/bingbot.htm |
| 11 | 425 | 0.59 | 214 | 1.89 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 155 | 0.22 | 132 | 1.17 | Windows 95 |
| 13 | 138 | 0.19 | 23 | 0.20 | +http://www.linkdex.com/bots/ |
| 14 | 122 | 0.17 | 28 | 0.25 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 120 | 0.17 | 26 | 0.23 | Windows 98 |
| 16 | 89 | 0.12 | 23 | 0.20 | +http://www.exabot.com/go/robot |
| 17 | 57 | 0.08 | 12 | 0.11 | http://www.opensiteexplorer.org/dotbot, ... |
| 18 | 37 | 0.05 | 6 | 0.05 | Windows XP |
| 19 | 33 | 0.05 | 31 | 0.27 | Windows 2000 |
| 20 | 33 | 0.05 | 29 | 0.26 | Windows ME |
| 21 | 31 | 0.04 | 30 | 0.27 | MSIE 5.5; Windows NT 4.0 |
| 22 | 28 | 0.04 | 22 | 0.19 | Windows 3.1 |
| 23 | 25 | 0.03 | 23 | 0.20 | MSIE 5.5; Windows NT 5.0 |
| 24 | 22 | 0.03 | 21 | 0.19 | Windows CE |
| 25 | 22 | 0.03 | 21 | 0.19 | ) - BrowseX (2.0.0 Windows |
| 26 | 14 | 0.02 | 2 | 0.02 | http://filterdb.iss.net/crawler/ |
| 27 | 13 | 0.02 | 13 | 0.12 | Auto; Windows |
| 28 | 11 | 0.02 | 10 | 0.09 | +info@netcraft.com |
| 29 | 4 | 0.01 | 2 | 0.02 | +http://www.meanpath.com/meanpathbot.htm... |
| 30 | 3 | 0.00 | 3 | 0.03 | Linux i686 [unknown version] |
| 31 | 3 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 32 | 3 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 33 | 2 | 0.00 | 1 | 0.01 | +http://sur.ly/bot.html |
| 34 | 2 | 0.00 | 1 | 0.01 | +http://duckduckgo.com |
| 35 | 1 | 0.00 | 1 | 0.01 | Linux [unknown version] |
| 36 | 1 | 0.00 | 0 | 0.00 | X11 |
| 37 | 1 | 0.00 | 1 | 0.01 | Macintosh |
