| Used Operating Systems |
| 1 | 3169 | 42.56 | 2240 | 59.50 | Windows NT |
| 2 | 1741 | 23.38 | 41 | 1.09 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 716 | 9.62 | 704 | 18.70 | +http://www.baidu.com/search/spider.html |
| 4 | 613 | 8.23 | 145 | 3.85 | +http://yandex.com/bots |
| 5 | 221 | 2.97 | 79 | 2.10 | +http://www.linkdex.com/bots/ |
| 6 | 190 | 2.55 | 79 | 2.10 | +http://www.bing.com/bingbot.htm |
| 7 | 165 | 2.22 | 37 | 0.98 | +http://www.google.com/bot.html |
| 8 | 138 | 1.85 | 128 | 3.40 | Windows 95 |
| 9 | 87 | 1.17 | 40 | 1.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 10 | 75 | 1.01 | 43 | 1.14 | Windows 98 |
| 11 | 52 | 0.70 | 22 | 0.58 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 31 | 0.42 | 15 | 0.40 | +http://www.exabot.com/go/robot |
| 13 | 29 | 0.39 | 28 | 0.74 | Auto; Windows |
| 14 | 28 | 0.38 | 27 | 0.72 | Windows 2000 |
| 15 | 22 | 0.30 | 21 | 0.56 | Windows CE |
| 16 | 21 | 0.28 | 8 | 0.21 | Windows XP |
| 17 | 19 | 0.26 | 19 | 0.50 | Windows ME |
| 18 | 18 | 0.24 | 18 | 0.48 | MSIE 5.5; Windows NT 5.0 |
| 19 | 17 | 0.23 | 16 | 0.42 | Windows 3.1 |
| 20 | 14 | 0.19 | 14 | 0.37 | ) - BrowseX (2.0.0 Windows |
| 21 | 12 | 0.16 | 6 | 0.16 | +http://www.meanpath.com/meanpathbot.htm... |
| 22 | 11 | 0.15 | 10 | 0.27 | MSIE 5.5; Windows NT 4.0 |
| 23 | 8 | 0.11 | 2 | 0.05 | http://filterdb.iss.net/crawler/ |
| 24 | 6 | 0.08 | 2 | 0.05 | +http://OpenLinkProfiler.org/bot |
| 25 | 5 | 0.07 | 1 | 0.03 | +http://ahrefs.com/robot/ |
| 26 | 4 | 0.05 | 1 | 0.03 | +http://downloadg5.com |
| 27 | 4 | 0.05 | 2 | 0.05 | +http://advbot.org/bot.html |
| 28 | 4 | 0.05 | 4 | 0.11 | +http://domainsigma.com/robot |
| 29 | 3 | 0.04 | 2 | 0.05 | http://help.yahoo.com/help/us/ysearch/sl... |
| 30 | 3 | 0.04 | 2 | 0.05 | +info@netcraft.com |
| 31 | 3 | 0.04 | 2 | 0.05 | +http://www.semrush.com/bot.html |
| 32 | 3 | 0.04 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 33 | 2 | 0.03 | 1 | 0.03 | http://nmap.org/book/nse.html |
| 34 | 2 | 0.03 | 2 | 0.05 | +http://www.linkpad.ru |
| 35 | 2 | 0.03 | 1 | 0.03 | +http://gimme60.com |
| 36 | 2 | 0.03 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 37 | 2 | 0.03 | 1 | 0.03 | +http://duckduckgo.com |
| 38 | 1 | 0.01 | 1 | 0.03 | Linux i686 [unknown version] |
| 39 | 1 | 0.01 | 0 | 0.00 | Android 2.3.5 |
| 40 | 1 | 0.01 | 1 | 0.03 | X11 |
| 41 | 1 | 0.01 | 0 | 0.00 | +http://fulltext.sblog.cz/screenshot/ |
