| Used Operating Systems |
| 1 | 28050 | 39.37 | 204 | 0.98 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 15615 | 21.91 | 9725 | 46.64 | +http://www.baidu.com/search/spider.html |
| 3 | 10902 | 15.30 | 8395 | 40.26 | +http://ahrefs.com/robot/ |
| 4 | 8211 | 11.52 | 742 | 3.56 | Windows NT |
| 5 | 2251 | 3.16 | 1016 | 4.87 | +http://www.google.com/bot.html |
| 6 | 1236 | 1.73 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 1232 | 1.73 | 4 | 0.02 | +http://megaindex.com/crawler |
| 8 | 982 | 1.38 | 133 | 0.64 | +http://yandex.com/bots |
| 9 | 880 | 1.24 | 7 | 0.03 | +http://www.warebay.com/bot.html |
| 10 | 727 | 1.02 | 262 | 1.26 | +http://www.bing.com/bingbot.htm |
| 11 | 280 | 0.39 | 184 | 0.88 | +http://www.linkdex.com/bots/ |
| 12 | 182 | 0.26 | 2 | 0.01 | +http://fulltext.sblog.cz/ |
| 13 | 130 | 0.18 | 2 | 0.01 | Linux [unknown version] |
| 14 | 128 | 0.18 | 49 | 0.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 65 | 0.09 | 1 | 0.00 | Linux i586 [unknown version] |
| 16 | 59 | 0.08 | 9 | 0.04 | Windows 95 |
| 17 | 50 | 0.07 | 15 | 0.07 | +http://www.exabot.com/go/robot |
| 18 | 38 | 0.05 | 5 | 0.02 | Windows 3.1 |
| 19 | 27 | 0.04 | 4 | 0.02 | Windows CE |
| 20 | 26 | 0.04 | 23 | 0.11 | +http://www.uptime.com/uptimebot |
| 21 | 24 | 0.03 | 2 | 0.01 | +http://webmeup-crawler.com/ |
| 22 | 23 | 0.03 | 3 | 0.01 | Windows ME |
| 23 | 23 | 0.03 | 4 | 0.02 | Windows 98 |
| 24 | 20 | 0.03 | 10 | 0.05 | +http://help.coccoc.com/ |
| 25 | 20 | 0.03 | 2 | 0.01 | http://filterdb.iss.net/crawler/ |
| 26 | 14 | 0.02 | 14 | 0.07 | apps-spreadsheets; +http://docs.google.c... |
| 27 | 10 | 0.01 | 5 | 0.02 | +http://www.semrush.com/bot.html |
| 28 | 8 | 0.01 | 2 | 0.01 | +http://prlog.ru/ |
| 29 | 7 | 0.01 | 3 | 0.01 | http://www.opensiteexplorer.org/dotbot, ... |
| 30 | 7 | 0.01 | 1 | 0.00 | MSIE 5.5; Windows NT 4.0 |
| 31 | 5 | 0.01 | 4 | 0.02 | +info@netcraft.com |
| 32 | 4 | 0.01 | 3 | 0.01 | Win32 |
| 33 | 4 | 0.01 | 2 | 0.01 | Wayback Machine Live Record; +http://arc... |
| 34 | 3 | 0.00 | 1 | 0.00 | +http://www.meanpath.com/meanpathbot.htm... |
| 35 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 36 | 2 | 0.00 | 2 | 0.01 | +http://sur.ly/bot.html |
| 37 | 2 | 0.00 | 2 | 0.01 | +http://www.wmtips.com/tools/ |
| 38 | 2 | 0.00 | 1 | 0.00 | WinHttp.WinHttpRequest.5 |
| 39 | 1 | 0.00 | 1 | 0.00 | +http://www.privacyaware.org |
| 40 | 1 | 0.00 | 1 | 0.00 | X11; Linux i686; en |
