| Used Operating Systems |
| 1 | 12251 | 35.54 | 342 | 4.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 2 | 5054 | 14.66 | 90 | 1.08 | http://mj12bot.com/ |
| 3 | 4333 | 12.57 | 1335 | 15.98 | Windows NT |
| 4 | 2609 | 7.57 | 2513 | 30.07 | +http://www.baidu.com/search/spider.html |
| 5 | 2060 | 5.98 | 680 | 8.14 | +http://www.google.com/bot.html |
| 6 | 1299 | 3.77 | 18 | 0.22 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 1209 | 3.51 | 335 | 4.01 | +http://www.bing.com/bingbot.htm |
| 8 | 680 | 1.97 | 20 | 0.24 | +http://www.semrush.com/bot.html |
| 9 | 629 | 1.82 | 102 | 1.22 | +http://yandex.com/bots |
| 10 | 362 | 1.05 | 105 | 1.26 | +http://www.linkdex.com/bots/ |
| 11 | 281 | 0.82 | 280 | 3.35 | Windows 2005 |
| 12 | 268 | 0.78 | 267 | 3.20 | Windows 9 |
| 13 | 262 | 0.76 | 262 | 3.14 | Windows 2008 |
| 14 | 260 | 0.75 | 260 | 3.11 | Windows 2003 |
| 15 | 252 | 0.73 | 252 | 3.02 | Windows 2007 |
| 16 | 250 | 0.73 | 250 | 2.99 | Windows 2006 |
| 17 | 244 | 0.71 | 244 | 2.92 | Windows 2002 |
| 18 | 227 | 0.66 | 107 | 1.28 | http://help.yahoo.com/help/us/ysearch/sl... |
| 19 | 221 | 0.64 | 221 | 2.64 | Windows 2004 |
| 20 | 203 | 0.59 | 166 | 1.99 | Windows 95 |
| 21 | 192 | 0.56 | 3 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 22 | 182 | 0.53 | 41 | 0.49 | Windows 98 |
| 23 | 123 | 0.36 | 3 | 0.04 | +http://webmeup-crawler.com/ |
| 24 | 122 | 0.35 | 92 | 1.10 | +http://ahrefs.com/robot/ |
| 25 | 114 | 0.33 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 26 | 97 | 0.28 | 28 | 0.34 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 27 | 68 | 0.20 | 4 | 0.05 | +http://siteexplorer.info/Backlink-Check... |
| 28 | 63 | 0.18 | 1 | 0.01 | +http://megaindex.com/crawler |
| 29 | 59 | 0.17 | 4 | 0.05 | Windows Phone OS 7.5 |
| 30 | 55 | 0.16 | 1 | 0.01 | Windows XP |
| 31 | 45 | 0.13 | 37 | 0.44 | Windows 3.1 |
| 32 | 45 | 0.13 | 41 | 0.49 | ) - BrowseX (2.0.0 Windows |
| 33 | 44 | 0.13 | 42 | 0.50 | Windows 2000 |
| 34 | 44 | 0.13 | 42 | 0.50 | MSIE 5.5; Windows NT 5.0 |
| 35 | 41 | 0.12 | 39 | 0.47 | Auto; Windows |
| 36 | 38 | 0.11 | 32 | 0.38 | Windows ME |
| 37 | 36 | 0.10 | 32 | 0.38 | Windows CE |
| 38 | 33 | 0.10 | 30 | 0.36 | MSIE 5.5; Windows NT 4.0 |
| 39 | 27 | 0.08 | 3 | 0.04 | +http://www.seokicks.de/robot.html |
| 40 | 19 | 0.06 | 3 | 0.04 | +http://napoveda.seznam.cz/en/seznambot-... |
| 41 | 18 | 0.05 | 1 | 0.01 | J2ME/MIDP |
| 42 | 14 | 0.04 | 8 | 0.10 | +http://www.exabot.com/go/robot |
| 43 | 7 | 0.02 | 4 | 0.05 | +https://deusu.de/robot.html |
| 44 | 6 | 0.02 | 3 | 0.04 | +https://www.mojeek.com/bot.html |
| 45 | 6 | 0.02 | 2 | 0.02 | +http://www.profound.net/domainappender |
| 46 | 3 | 0.01 | 3 | 0.04 | Android 2.3.5 |
| 47 | 2 | 0.01 | 2 | 0.02 | +http://pmoz.info/doc/botinfo.htm |
| 48 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 49 | 2 | 0.01 | 1 | 0.01 | +http://nlp.fi.muni.cz/projects/biwec/ |
| 50 | 2 | 0.01 | 1 | 0.01 | +http://duckduckgo.com |
| 51 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 52 | 1 | 0.00 | 1 | 0.01 | X11 |
| 53 | 1 | 0.00 | 1 | 0.01 | Linux i586 [unknown version] |
| 54 | 1 | 0.00 | 0 | 0.00 | Linux i686 [unknown version] |
