| Used Operating Systems |
| 1 | 23288 | 32.02 | 178 | 1.01 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 11866 | 16.31 | 8116 | 45.88 | +http://ahrefs.com/robot/ |
| 3 | 11816 | 16.25 | 1683 | 9.51 | Windows NT |
| 4 | 7431 | 10.22 | 5338 | 30.18 | +http://www.baidu.com/search/spider.html |
| 5 | 6620 | 9.10 | 2 | 0.01 | +http://megaindex.com/crawler |
| 6 | 3312 | 4.55 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 7 | 2683 | 3.69 | 502 | 2.84 | +http://yandex.com/bots |
| 8 | 2265 | 3.11 | 801 | 4.53 | +http://www.google.com/bot.html |
| 9 | 807 | 1.11 | 327 | 1.85 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 656 | 0.90 | 263 | 1.49 | +http://www.bing.com/bingbot.htm |
| 11 | 647 | 0.89 | 5 | 0.03 | +http://www.warebay.com/bot.html |
| 12 | 466 | 0.64 | 97 | 0.55 | +http://www.exabot.com/go/robot |
| 13 | 220 | 0.30 | 196 | 1.11 | +http://www.xovibot.net/ |
| 14 | 206 | 0.28 | 35 | 0.20 | +http://www.linkdex.com/bots/ |
| 15 | 104 | 0.14 | 38 | 0.21 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 44 | 0.06 | 2 | 0.01 | +http://sur.ly/bot.html |
| 17 | 31 | 0.04 | 8 | 0.05 | Windows 2000 |
| 18 | 24 | 0.03 | 6 | 0.03 | Linux i686 [unknown version] |
| 19 | 20 | 0.03 | 3 | 0.02 | Windows XP |
| 20 | 20 | 0.03 | 3 | 0.02 | Windows 98 |
| 21 | 19 | 0.03 | 7 | 0.04 | Windows 95 |
| 22 | 16 | 0.02 | 16 | 0.09 | +http://www.uptime.com/uptimebot |
| 23 | 14 | 0.02 | 14 | 0.08 | apps-spreadsheets; +http://docs.google.c... |
| 24 | 14 | 0.02 | 2 | 0.01 | http://filterdb.iss.net/crawler/ |
| 25 | 12 | 0.02 | 4 | 0.02 | Windows ME |
| 26 | 11 | 0.02 | 1 | 0.01 | crawler@mixrank.com |
| 27 | 10 | 0.01 | 9 | 0.05 | +info@netcraft.com |
| 28 | 10 | 0.01 | 3 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 29 | 10 | 0.01 | 5 | 0.03 | +http://duckduckgo.com |
| 30 | 9 | 0.01 | 3 | 0.02 | Windows CE |
| 31 | 9 | 0.01 | 1 | 0.01 | X11 |
| 32 | 8 | 0.01 | 2 | 0.01 | i686 Linux; 20021015 |
| 33 | 8 | 0.01 | 2 | 0.01 | Linux 2.4.x |
| 34 | 8 | 0.01 | 2 | 0.01 | Windows 3.1 |
| 35 | 8 | 0.01 | 3 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 36 | 8 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 37 | 8 | 0.01 | 2 | 0.01 | i686 Linux; 20020107 |
| 38 | 8 | 0.01 | 2 | 0.01 | NetBSD [unknown version] |
| 39 | 4 | 0.01 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 40 | 3 | 0.00 | 0 | 0.00 | FreeBSD [unknown version] |
| 41 | 3 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 42 | 2 | 0.00 | 1 | 0.01 | +http://www.meanpath.com/meanpathbot.htm... |
| 43 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 44 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 45 | 1 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
