| Used Operating Systems |
| 1 | 20335 | 40.65 | 154 | 1.23 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 13700 | 27.39 | 7355 | 58.59 | +http://ahrefs.com/robot/ |
| 3 | 3447 | 6.89 | 1 | 0.01 | +http://megaindex.com/crawler |
| 4 | 3027 | 6.05 | 2589 | 20.62 | +http://www.baidu.com/search/spider.html |
| 5 | 2807 | 5.61 | 871 | 6.94 | Windows NT |
| 6 | 2002 | 4.00 | 762 | 6.07 | +http://www.google.com/bot.html |
| 7 | 1374 | 2.75 | 2 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 8 | 1298 | 2.59 | 9 | 0.07 | +http://www.warebay.com/bot.html |
| 9 | 554 | 1.11 | 190 | 1.51 | +http://yandex.com/bots |
| 10 | 500 | 1.00 | 255 | 2.03 | +http://www.bing.com/bingbot.htm |
| 11 | 318 | 0.64 | 104 | 0.83 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 255 | 0.51 | 68 | 0.54 | +http://www.linkdex.com/bots/ |
| 13 | 229 | 0.46 | 99 | 0.79 | +http://www.xovibot.net/ |
| 14 | 81 | 0.16 | 37 | 0.29 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 24 | 0.05 | 12 | 0.10 | +http://duckduckgo.com |
| 16 | 14 | 0.03 | 14 | 0.11 | apps-spreadsheets; +http://docs.google.c... |
| 17 | 12 | 0.02 | 6 | 0.05 | +http://www.exabot.com/go/robot |
| 18 | 8 | 0.02 | 4 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 19 | 6 | 0.01 | 3 | 0.02 | http://www.botje.com/plukkie.htm |
| 20 | 6 | 0.01 | 3 | 0.02 | Windows 95 |
| 21 | 3 | 0.01 | 1 | 0.01 | Windows ME |
| 22 | 3 | 0.01 | 2 | 0.02 | +info@netcraft.com |
| 23 | 3 | 0.01 | 2 | 0.02 | X11 |
| 24 | 3 | 0.01 | 1 | 0.01 | Windows 98 |
| 25 | 3 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 26 | 2 | 0.00 | 1 | 0.01 | Auto; Windows |
| 27 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 28 | 1 | 0.00 | 1 | 0.01 | Windows XP |
| 29 | 1 | 0.00 | 1 | 0.01 | +http://www.domaintuno.com/robot |
| 30 | 1 | 0.00 | 1 | 0.01 | +http://privatewww.essex.ac.uk/~jcread/W... |
| 31 | 1 | 0.00 | 1 | 0.01 | +https://www.wslta.com/WoTBoT.html |
| 32 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 33 | 1 | 0.00 | 1 | 0.01 | Linux i686 [unknown version] |
