| Used Operating Systems |
| 1 | 22850 | 36.75 | 142 | 1.07 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 11493 | 18.49 | 8297 | 62.38 | +http://ahrefs.com/robot/ |
| 3 | 7065 | 11.36 | 5 | 0.04 | +http://megaindex.com/crawler |
| 4 | 6601 | 10.62 | 666 | 5.01 | Windows NT |
| 5 | 4007 | 6.45 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 6 | 3732 | 6.00 | 422 | 3.17 | +http://www.bing.com/bingbot.htm |
| 7 | 2822 | 4.54 | 2395 | 18.01 | +http://www.baidu.com/search/spider.html |
| 8 | 2289 | 3.68 | 898 | 6.75 | +http://www.google.com/bot.html |
| 9 | 690 | 1.11 | 228 | 1.71 | +http://yandex.com/bots |
| 10 | 300 | 0.48 | 86 | 0.65 | +http://www.linkdex.com/bots/ |
| 11 | 58 | 0.09 | 29 | 0.22 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 39 | 0.06 | 12 | 0.09 | Windows XP |
| 13 | 34 | 0.05 | 8 | 0.06 | Windows 98 |
| 14 | 29 | 0.05 | 17 | 0.13 | +http://www.exabot.com/go/robot |
| 15 | 28 | 0.05 | 14 | 0.11 | +http://duckduckgo.com |
| 16 | 27 | 0.04 | 8 | 0.06 | Windows 95 |
| 17 | 25 | 0.04 | 23 | 0.17 | +http://www.uptime.com/uptimebot |
| 18 | 20 | 0.03 | 20 | 0.15 | apps-spreadsheets; +http://docs.google.c... |
| 19 | 11 | 0.02 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 20 | 8 | 0.01 | 8 | 0.06 | +http://www.xovibot.net/ |
| 21 | 6 | 0.01 | 2 | 0.02 | Windows CE |
| 22 | 6 | 0.01 | 2 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 23 | 6 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 24 | 4 | 0.01 | 2 | 0.02 | Auto; Windows |
| 25 | 4 | 0.01 | 1 | 0.01 | Windows ME |
| 26 | 3 | 0.00 | 2 | 0.02 | +info@netcraft.com |
| 27 | 3 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 28 | 2 | 0.00 | 1 | 0.01 | Windows 2000 |
| 29 | 2 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 30 | 2 | 0.00 | 1 | 0.01 | X11 |
| 31 | 2 | 0.00 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 33 | 1 | 0.00 | 1 | 0.01 | Android 2.3.5 |
