| Used Operating Systems |
| 1 | 21301 | 37.40 | 146 | 1.87 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 10988 | 19.29 | 412 | 5.28 | +http://ahrefs.com/robot/ |
| 3 | 6893 | 12.10 | 2 | 0.03 | +http://megaindex.com/crawler |
| 4 | 6401 | 11.24 | 3390 | 43.48 | Windows NT |
| 5 | 5408 | 9.50 | 173 | 2.22 | +http://yandex.com/bots |
| 6 | 2876 | 5.05 | 2410 | 30.91 | +http://www.baidu.com/search/spider.html |
| 7 | 1629 | 2.86 | 678 | 8.70 | +http://www.google.com/bot.html |
| 8 | 586 | 1.03 | 267 | 3.42 | +http://www.bing.com/bingbot.htm |
| 9 | 212 | 0.37 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 10 | 189 | 0.33 | 43 | 0.55 | +http://www.linkdex.com/bots/ |
| 11 | 145 | 0.25 | 109 | 1.40 | +http://www.xovibot.net/ |
| 12 | 125 | 0.22 | 84 | 1.08 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 46 | 0.08 | 15 | 0.19 | Windows 95 |
| 14 | 24 | 0.04 | 8 | 0.10 | Windows 98 |
| 15 | 21 | 0.04 | 6 | 0.08 | Windows XP |
| 16 | 20 | 0.04 | 20 | 0.26 | apps-spreadsheets; +http://docs.google.c... |
| 17 | 14 | 0.02 | 7 | 0.09 | +http://www.exabot.com/go/robot |
| 18 | 12 | 0.02 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 19 | 12 | 0.02 | 6 | 0.08 | +http://duckduckgo.com |
| 20 | 8 | 0.01 | 3 | 0.04 | +http://tobbot.com/ |
| 21 | 6 | 0.01 | 2 | 0.03 | Windows ME |
| 22 | 6 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 4.0 |
| 23 | 5 | 0.01 | 2 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 24 | 4 | 0.01 | 2 | 0.03 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 3 | 0.01 | 1 | 0.01 | Windows 2000 |
| 26 | 3 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 27 | 3 | 0.01 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 28 | 3 | 0.01 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 29 | 2 | 0.00 | 1 | 0.01 | Windows CE |
| 30 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 31 | 1 | 0.00 | 1 | 0.01 | Intel Mac OS X 10.4 |
| 32 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 33 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 34 | 1 | 0.00 | 0 | 0.00 | i686 Linux; 20020620 |
| 35 | 1 | 0.00 | 0 | 0.00 | X11 |
