| Used Operating Systems |
| 1 | 6156 | 25.80 | 178 | 3.55 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5997 | 25.14 | 1576 | 31.39 | Windows NT |
| 3 | 4046 | 16.96 | 1829 | 36.43 | +http://www.baidu.com/search/spider.html |
| 4 | 2973 | 12.46 | 451 | 8.98 | +http://www.google.com/bot.html |
| 5 | 1819 | 7.62 | 439 | 8.75 | +http://www.bing.com/bingbot.htm |
| 6 | 813 | 3.41 | 119 | 2.37 | +http://yandex.com/bots |
| 7 | 698 | 2.93 | 106 | 2.11 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 242 | 1.01 | 81 | 1.61 | +http://www.linkdex.com/bots/ |
| 9 | 225 | 0.94 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 10 | 182 | 0.76 | 33 | 0.66 | http://help.yahoo.com/help/us/ysearch/sl... |
| 11 | 142 | 0.60 | 53 | 1.06 | +http://ahrefs.com/robot/ |
| 12 | 142 | 0.60 | 44 | 0.88 | +http://www.exabot.com/go/robot |
| 13 | 99 | 0.41 | 22 | 0.44 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 24 | 0.10 | 7 | 0.14 | Windows 95 |
| 15 | 23 | 0.10 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 16 | 21 | 0.09 | 1 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 17 | 19 | 0.08 | 6 | 0.12 | MSIE 5.5; Windows NT 5.0 |
| 18 | 18 | 0.08 | 6 | 0.12 | Windows CE |
| 19 | 18 | 0.08 | 6 | 0.12 | +http://help.coccoc.com/ |
| 20 | 18 | 0.08 | 8 | 0.16 | Windows 98 |
| 21 | 15 | 0.06 | 3 | 0.06 | +http://inload.in |
| 22 | 14 | 0.06 | 2 | 0.04 | +http://p4load.com/ |
| 23 | 12 | 0.05 | 12 | 0.24 | +http://pmoz.info/doc/botinfo.htm |
| 24 | 12 | 0.05 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 25 | 12 | 0.05 | 4 | 0.08 | Windows ME |
| 26 | 12 | 0.05 | 0 | 0.00 | Linux i686 [unknown version] |
| 27 | 11 | 0.05 | 2 | 0.04 | +http://www.semrush.com/bot.html |
| 28 | 9 | 0.04 | 4 | 0.08 | +info@netcraft.com |
| 29 | 8 | 0.03 | 0 | 0.00 | Windows 9. |
| 30 | 8 | 0.03 | 4 | 0.08 | +http://OpenLinkProfiler.org/bot |
| 31 | 8 | 0.03 | 4 | 0.08 | +http://www.meanpath.com/meanpathbot.htm... |
| 32 | 8 | 0.03 | 4 | 0.08 | +http://fulltext.sblog.cz/ |
| 33 | 7 | 0.03 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 34 | 7 | 0.03 | 1 | 0.02 | +http://u12files.com/ |
| 35 | 6 | 0.03 | 3 | 0.06 | http://crawler.sistrix.net/ |
| 36 | 4 | 0.02 | 1 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 37 | 4 | 0.02 | 2 | 0.04 | +http://botw.org |
| 38 | 3 | 0.01 | 1 | 0.02 | Windows 2000 |
| 39 | 3 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 40 | 3 | 0.01 | 3 | 0.06 | +http://www.linkpad.ru |
| 41 | 3 | 0.01 | 1 | 0.02 | Windows XP |
| 42 | 2 | 0.01 | 0 | 0.00 | OpenBSD [unknown version] |
| 43 | 2 | 0.01 | 0 | 0.00 | Win32 |
| 44 | 2 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
| 45 | 2 | 0.01 | 0 | 0.00 | FreeBSD [unknown version] |
| 46 | 1 | 0.00 | 0 | 0.00 | documents; +http://docs.google.com |
| 47 | 1 | 0.00 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 48 | 1 | 0.00 | 1 | 0.02 | +http://136.186.231.16 |
| 49 | 1 | 0.00 | 1 | 0.02 | Wayback Machine Live Record; http://arch... |
