| Used Operating Systems |
| 1 | 29361 | 54.45 | 253 | 2.58 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 7025 | 13.03 | 3046 | 31.05 | Windows NT |
| 3 | 6613 | 12.26 | 5158 | 52.58 | +http://www.baidu.com/search/spider.html |
| 4 | 6436 | 11.93 | 93 | 0.95 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 1742 | 3.23 | 8 | 0.08 | +http://OpenLinkProfiler.org/bot |
| 6 | 922 | 1.71 | 259 | 2.64 | +http://www.bing.com/bingbot.htm |
| 7 | 719 | 1.33 | 473 | 4.82 | +http://www.google.com/bot.html |
| 8 | 519 | 0.96 | 168 | 1.71 | +http://yandex.com/bots |
| 9 | 160 | 0.30 | 61 | 0.62 | +http://www.linkdex.com/bots/ |
| 10 | 116 | 0.22 | 106 | 1.08 | Windows 95 |
| 11 | 72 | 0.13 | 31 | 0.32 | Windows 98 |
| 12 | 28 | 0.05 | 14 | 0.14 | +http://help.coccoc.com/ |
| 13 | 28 | 0.05 | 3 | 0.03 | X11 |
| 14 | 20 | 0.04 | 8 | 0.08 | Windows XP |
| 15 | 18 | 0.03 | 17 | 0.17 | MSIE 5.5; Windows NT 5.0 |
| 16 | 16 | 0.03 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 17 | 16 | 0.03 | 15 | 0.15 | Windows ME |
| 18 | 15 | 0.03 | 15 | 0.15 | Windows 3.1 |
| 19 | 15 | 0.03 | 15 | 0.15 | MSIE 5.5; Windows NT 4.0 |
| 20 | 12 | 0.02 | 12 | 0.12 | Windows CE |
| 21 | 12 | 0.02 | 12 | 0.12 | Windows 2000 |
| 22 | 10 | 0.02 | 4 | 0.04 | Android 2.3.5 |
| 23 | 10 | 0.02 | 5 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 8 | 0.01 | 8 | 0.08 | Auto; Windows |
| 25 | 7 | 0.01 | 7 | 0.07 | ) - BrowseX (2.0.0 Windows |
| 26 | 5 | 0.01 | 1 | 0.01 | http://help.yahoo.com/help/us/ysearch/sl... |
| 27 | 4 | 0.01 | 4 | 0.04 | Linux i686 [unknown version] |
| 28 | 4 | 0.01 | 3 | 0.03 | +info@netcraft.com |
| 29 | 4 | 0.01 | 2 | 0.02 | +http://duckduckgo.com |
| 30 | 3 | 0.01 | 3 | 0.03 | Linux [unknown version] |
| 31 | 2 | 0.00 | 1 | 0.01 | +http://www.semrush.com/bot.html |
| 32 | 2 | 0.00 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 33 | 1 | 0.00 | 1 | 0.01 | +http://www.seograph.net/bot.html |
| 34 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 35 | 1 | 0.00 | 1 | 0.01 | PPC Mac OS X Mach-O |
