| Used Operating Systems |
| 1 | 5745 | 38.51 | 2857 | 54.47 | Windows NT |
| 2 | 4632 | 31.05 | 355 | 6.77 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 1563 | 10.48 | 1407 | 26.83 | +http://www.baidu.com/search/spider.html |
| 4 | 1147 | 7.69 | 58 | 1.11 | +http://www.easou.com/search/spider.html |
| 5 | 707 | 4.74 | 238 | 4.54 | +http://www.google.com/bot.html |
| 6 | 339 | 2.27 | 141 | 2.69 | +http://www.bing.com/bingbot.htm |
| 7 | 156 | 1.05 | 23 | 0.44 | +http://yandex.com/bots |
| 8 | 101 | 0.68 | 27 | 0.51 | http://help.yahoo.com/help/us/ysearch/sl... |
| 9 | 77 | 0.52 | 14 | 0.27 | +http://ahrefs.com/robot/ |
| 10 | 48 | 0.32 | 6 | 0.11 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 48 | 0.32 | 23 | 0.44 | +http://www.meanpath.com/meanpathbot.htm... |
| 12 | 42 | 0.28 | 5 | 0.10 | +http://fulltext.sblog.cz/ |
| 13 | 36 | 0.24 | 15 | 0.29 | Windows 95 |
| 14 | 26 | 0.17 | 9 | 0.17 | Windows 98 |
| 15 | 22 | 0.15 | 1 | 0.02 | http://www.searchmetrics.com/en/searchme... |
| 16 | 20 | 0.13 | 6 | 0.11 | +http://www.exabot.com/go/robot |
| 17 | 16 | 0.11 | 6 | 0.11 | Windows 2000 |
| 18 | 16 | 0.11 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 19 | 16 | 0.11 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 20 | 14 | 0.09 | 4 | 0.08 | +http://www.idmarch.org/bot.html |
| 21 | 12 | 0.08 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 22 | 12 | 0.08 | 5 | 0.10 | Windows XP |
| 23 | 12 | 0.08 | 10 | 0.19 | +http://www.xovibot.net/ |
| 24 | 11 | 0.07 | 5 | 0.10 | Windows 3.1 |
| 25 | 11 | 0.07 | 1 | 0.02 | +http://www.profound.net/domainappender |
| 26 | 10 | 0.07 | 4 | 0.08 | Auto; Windows |
| 27 | 10 | 0.07 | 1 | 0.02 | +http://www.linkpad.ru |
| 28 | 9 | 0.06 | 2 | 0.04 | +http://getdownload.ws |
| 29 | 6 | 0.04 | 1 | 0.02 | +http://endb-consolidated.aihit.com/ |
| 30 | 6 | 0.04 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 31 | 5 | 0.03 | 2 | 0.04 | Windows CE |
| 32 | 5 | 0.03 | 1 | 0.02 | +http://a14download.com |
| 33 | 4 | 0.03 | 1 | 0.02 | +http://plus5files.net |
| 34 | 4 | 0.03 | 1 | 0.02 | +http://onlythegames.com |
| 35 | 4 | 0.03 | 1 | 0.02 | +http://www.semrush.com/bot.html |
| 36 | 4 | 0.03 | 2 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 37 | 3 | 0.02 | 0 | 0.00 | X11 |
| 38 | 3 | 0.02 | 1 | 0.02 | +http://dl2engine.net |
| 39 | 2 | 0.01 | 1 | 0.02 | http://crawler.sistrix.net/ |
| 40 | 2 | 0.01 | 2 | 0.04 | Android 2.3.5 |
| 41 | 2 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 42 | 1 | 0.01 | 1 | 0.02 | crawler@mixrank.com |
| 43 | 1 | 0.01 | 0 | 0.00 | Macintosh PPC |
| 44 | 1 | 0.01 | 1 | 0.02 | Windows ME |
| 45 | 1 | 0.01 | 0 | 0.00 | Linux 2.4.x |
| 46 | 1 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 47 | 1 | 0.01 | 1 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 48 | 1 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 49 | 1 | 0.01 | 1 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 50 | 1 | 0.01 | 1 | 0.02 | Linux i686 [unknown version] |
| 51 | 1 | 0.01 | 0 | 0.00 | PPC Mac OS X Mach-O |
