| Used Operating Systems |
| 1 | 17928 | 39.79 | 160 | 1.83 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 13452 | 29.86 | 26 | 0.30 | +http://ahrefs.com/robot/ |
| 3 | 6316 | 14.02 | 4126 | 47.10 | +http://www.baidu.com/search/spider.html |
| 4 | 4509 | 10.01 | 3284 | 37.49 | Windows NT |
| 5 | 1225 | 2.72 | 382 | 4.36 | +http://www.bing.com/bingbot.htm |
| 6 | 647 | 1.44 | 277 | 3.16 | +http://www.google.com/bot.html |
| 7 | 191 | 0.42 | 103 | 1.18 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 159 | 0.35 | 158 | 1.80 | +http://monasterytea.spbdyet.ru |
| 9 | 138 | 0.31 | 43 | 0.49 | +http://www.linkdex.com/bots/ |
| 10 | 125 | 0.28 | 26 | 0.30 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 81 | 0.18 | 81 | 0.92 | +http://warifort.moykrest.ru |
| 12 | 37 | 0.08 | 14 | 0.16 | +http://yandex.com/bots |
| 13 | 34 | 0.08 | 2 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 14 | 20 | 0.04 | 3 | 0.03 | Linux i686 [unknown version] |
| 15 | 20 | 0.04 | 9 | 0.10 | +http://www.exabot.com/go/robot |
| 16 | 20 | 0.04 | 5 | 0.06 | +http://fulltext.sblog.cz/ |
| 17 | 18 | 0.04 | 1 | 0.01 | Linux i586 [unknown version] |
| 18 | 16 | 0.04 | 8 | 0.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 19 | 15 | 0.03 | 1 | 0.01 | http://www.searchmetrics.com/en/searchme... |
| 20 | 15 | 0.03 | 13 | 0.15 | Windows 95 |
| 21 | 13 | 0.03 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 22 | 12 | 0.03 | 6 | 0.07 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 12 | 0.03 | 5 | 0.06 | +http://duckduckgo.com |
| 24 | 9 | 0.02 | 1 | 0.01 | Windows 98 |
| 25 | 6 | 0.01 | 1 | 0.01 | +http://www.profound.net/domainappender |
| 26 | 5 | 0.01 | 5 | 0.06 | +http://www.domaintuno.com/robot |
| 27 | 5 | 0.01 | 5 | 0.06 | MSIE 5.5; Windows NT 4.0 |
| 28 | 4 | 0.01 | 1 | 0.01 | Windows XP |
| 29 | 4 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 30 | 3 | 0.01 | 3 | 0.03 | Windows ME |
| 31 | 3 | 0.01 | 3 | 0.03 | MSIE 5.5; Windows NT 5.0 |
| 32 | 3 | 0.01 | 0 | 0.00 | +http://www.xovibot.net/ |
| 33 | 2 | 0.00 | 2 | 0.02 | Windows CE |
| 34 | 2 | 0.00 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 35 | 2 | 0.00 | 1 | 0.01 | +info@netcraft.com |
| 36 | 1 | 0.00 | 1 | 0.01 | Windows 2000 |
| 37 | 1 | 0.00 | 1 | 0.01 | Windows 3.1 |
