| Used Operating Systems |
| 1 | 18798 | 43.53 | 202 | 4.35 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14480 | 33.53 | 58 | 1.25 | +http://ahrefs.com/robot/ |
| 3 | 2720 | 6.30 | 801 | 17.23 | Windows NT |
| 4 | 2677 | 6.20 | 2173 | 46.74 | +http://www.baidu.com/search/spider.html |
| 5 | 1327 | 3.07 | 261 | 5.61 | +http://www.bing.com/bingbot.htm |
| 6 | 1313 | 3.04 | 231 | 4.97 | +http://www.google.com/bot.html |
| 7 | 748 | 1.73 | 421 | 9.06 | +http://www.xovibot.net/ |
| 8 | 289 | 0.67 | 89 | 1.91 | +http://yandex.com/bots |
| 9 | 152 | 0.35 | 59 | 1.27 | http://www.opensiteexplorer.org/dotbot, ... |
| 10 | 133 | 0.31 | 99 | 2.13 | Windows 95 |
| 11 | 129 | 0.30 | 30 | 0.65 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 88 | 0.20 | 19 | 0.41 | Windows 98 |
| 13 | 61 | 0.14 | 21 | 0.45 | +http://www.linkdex.com/bots/ |
| 14 | 40 | 0.09 | 32 | 0.69 | Windows 3.1 |
| 15 | 30 | 0.07 | 23 | 0.49 | ) - BrowseX (2.0.0 Windows |
| 16 | 23 | 0.05 | 20 | 0.43 | MSIE 5.5; Windows NT 5.0 |
| 17 | 22 | 0.05 | 20 | 0.43 | Auto; Windows |
| 18 | 21 | 0.05 | 1 | 0.02 | Windows XP |
| 19 | 18 | 0.04 | 15 | 0.32 | Windows ME |
| 20 | 17 | 0.04 | 16 | 0.34 | Windows CE |
| 21 | 16 | 0.04 | 15 | 0.32 | MSIE 5.5; Windows NT 4.0 |
| 22 | 15 | 0.03 | 13 | 0.28 | Windows 2000 |
| 23 | 12 | 0.03 | 6 | 0.13 | +http://www.exabot.com/go/robot |
| 24 | 9 | 0.02 | 3 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 25 | 7 | 0.02 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 26 | 6 | 0.01 | 3 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 27 | 6 | 0.01 | 3 | 0.06 | +http://duckduckgo.com |
| 28 | 5 | 0.01 | 5 | 0.11 | +http://domainsigma.com/robot |
| 29 | 4 | 0.01 | 2 | 0.04 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 30 | 4 | 0.01 | 2 | 0.04 | +info@netcraft.com |
| 31 | 3 | 0.01 | 1 | 0.02 | +http://filterdb.iss.net/crawler/ |
| 32 | 3 | 0.01 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 33 | 2 | 0.00 | 2 | 0.04 | http://nmap.org/book/nse.html |
| 34 | 2 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 35 | 1 | 0.00 | 1 | 0.02 | Linux [unknown version] |
| 36 | 1 | 0.00 | 1 | 0.02 | Linux i586 [unknown version] |
| 37 | 1 | 0.00 | 0 | 0.00 | SunOS sun4u |
