| Used Operating Systems |
| 1 | 11842 | 58.74 | 126 | 2.68 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 2448 | 12.14 | 1928 | 41.03 | +http://www.baidu.com/search/spider.html |
| 3 | 2172 | 10.77 | 1640 | 34.90 | Windows NT |
| 4 | 1024 | 5.08 | 123 | 2.62 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 916 | 4.54 | 102 | 2.17 | +http://yandex.com/bots |
| 6 | 792 | 3.93 | 308 | 6.55 | +http://www.google.com/bot.html |
| 7 | 299 | 1.48 | 114 | 2.43 | +http://www.bing.com/bingbot.htm |
| 8 | 132 | 0.65 | 103 | 2.19 | +http://www.linkdex.com/bots/ |
| 9 | 85 | 0.42 | 4 | 0.09 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 48 | 0.24 | 48 | 1.02 | +http://warifort.moykrest.ru |
| 11 | 47 | 0.23 | 35 | 0.74 | Windows 95 |
| 12 | 47 | 0.23 | 47 | 1.00 | +http://monasterytea.spbdyet.ru |
| 13 | 35 | 0.17 | 14 | 0.30 | Windows 98 |
| 14 | 29 | 0.14 | 3 | 0.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 21 | 0.10 | 4 | 0.09 | +http://ahrefs.com/robot/ |
| 16 | 19 | 0.09 | 5 | 0.11 | Windows XP |
| 17 | 16 | 0.08 | 8 | 0.17 | Windows 3.1 |
| 18 | 16 | 0.08 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 19 | 15 | 0.07 | 5 | 0.11 | Linux [unknown version] |
| 20 | 13 | 0.06 | 1 | 0.02 | Windows 99 |
| 21 | 12 | 0.06 | 6 | 0.13 | http://www.searchmetrics.com/en/searchme... |
| 22 | 12 | 0.06 | 5 | 0.11 | +http://help.coccoc.com/ |
| 23 | 12 | 0.06 | 6 | 0.13 | +http://www.meanpath.com/meanpathbot.htm... |
| 24 | 11 | 0.05 | 6 | 0.13 | Windows ME |
| 25 | 10 | 0.05 | 5 | 0.11 | +http://duckduckgo.com |
| 26 | 9 | 0.04 | 7 | 0.15 | MSIE 5.5; Windows NT 4.0 |
| 27 | 7 | 0.03 | 7 | 0.15 | info@muso.com; +http://www.muso.com |
| 28 | 7 | 0.03 | 1 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 29 | 6 | 0.03 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 30 | 6 | 0.03 | 6 | 0.13 | +http://megaindex.com/crawler |
| 31 | 6 | 0.03 | 3 | 0.06 | +http://www.exabot.com/go/robot |
| 32 | 5 | 0.02 | 5 | 0.11 | +http://domainsigma.com/robot |
| 33 | 4 | 0.02 | 2 | 0.04 | Auto; Windows |
| 34 | 4 | 0.02 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 35 | 4 | 0.02 | 4 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 36 | 4 | 0.02 | 1 | 0.02 | +http://fulltext.sblog.cz/ |
| 37 | 3 | 0.01 | 3 | 0.06 | Windows 2000 |
| 38 | 3 | 0.01 | 3 | 0.06 | Windows CE |
| 39 | 3 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 40 | 3 | 0.01 | 3 | 0.06 | Linux i686 [unknown version] |
| 41 | 3 | 0.01 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 42 | 2 | 0.01 | 1 | 0.02 | +http://www.scoutjet.com/ |
| 43 | 2 | 0.01 | 1 | 0.02 | +http://www.scopia.co |
| 44 | 2 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
| 45 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 46 | 1 | 0.00 | 0 | 0.00 | +https://gimmeusa.com/pages/crawler |
| 47 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
