| Used Operating Systems |
| 1 | 22864 | 58.25 | 346 | 7.07 | +http://www.semrush.com/bot.html |
| 2 | 5987 | 15.25 | 481 | 9.83 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 3221 | 8.21 | 46 | 0.94 | http://mj12bot.com/ |
| 4 | 2008 | 5.12 | 1255 | 25.64 | Windows NT |
| 5 | 1393 | 3.55 | 752 | 15.37 | +http://www.google.com/bot.html |
| 6 | 617 | 1.57 | 322 | 6.58 | +http://www.bing.com/bingbot.htm |
| 7 | 605 | 1.54 | 166 | 3.39 | +http://www.linkdex.com/bots/ |
| 8 | 405 | 1.03 | 73 | 1.49 | +http://yandex.com/bots |
| 9 | 256 | 0.65 | 4 | 0.08 | +http://OpenLinkProfiler.org/bot |
| 10 | 192 | 0.49 | 129 | 2.64 | +http://ahrefs.com/robot/ |
| 11 | 152 | 0.39 | 142 | 2.90 | Windows 2003 |
| 12 | 144 | 0.37 | 140 | 2.86 | Windows 2004 |
| 13 | 137 | 0.35 | 134 | 2.74 | Windows 2002 |
| 14 | 130 | 0.33 | 129 | 2.64 | Windows 2006 |
| 15 | 126 | 0.32 | 2 | 0.04 | +http://megaindex.com/crawler |
| 16 | 125 | 0.32 | 122 | 2.49 | Windows 2008 |
| 17 | 125 | 0.32 | 124 | 2.53 | Windows 9 |
| 18 | 117 | 0.30 | 116 | 2.37 | Windows 2005 |
| 19 | 111 | 0.28 | 109 | 2.23 | Windows 2007 |
| 20 | 79 | 0.20 | 42 | 0.86 | http://help.yahoo.com/help/us/ysearch/sl... |
| 21 | 74 | 0.19 | 6 | 0.12 | +http://www.seokicks.de/robot.html |
| 22 | 57 | 0.15 | 26 | 0.53 | +https://deusu.de/robot.html |
| 23 | 44 | 0.11 | 15 | 0.31 | +https://www.mojeek.com/bot.html |
| 24 | 40 | 0.10 | 24 | 0.49 | Windows 98 |
| 25 | 38 | 0.10 | 38 | 0.78 | Windows 95 |
| 26 | 35 | 0.09 | 35 | 0.72 | +http://www.uptime.com/uptimebot |
| 27 | 30 | 0.08 | 29 | 0.59 | +http://www.baidu.com/search/spider.html |
| 28 | 15 | 0.04 | 2 | 0.04 | Android |
| 29 | 12 | 0.03 | 11 | 0.22 | Windows ME |
| 30 | 11 | 0.03 | 11 | 0.22 | Windows CE |
| 31 | 11 | 0.03 | 11 | 0.22 | MSIE 5.5; Windows NT 4.0 |
| 32 | 10 | 0.03 | 1 | 0.02 | J2ME/MIDP |
| 33 | 10 | 0.03 | 0 | 0.00 | Linux i686 [unknown version] |
| 34 | 9 | 0.02 | 8 | 0.16 | Windows 2000 |
| 35 | 7 | 0.02 | 4 | 0.08 | Windows XP |
| 36 | 7 | 0.02 | 4 | 0.08 | +http://www.exabot.com/go/robot |
| 37 | 6 | 0.02 | 6 | 0.12 | Auto; Windows |
| 38 | 5 | 0.01 | 5 | 0.10 | MSIE 5.5; Windows NT 5.0 |
| 39 | 5 | 0.01 | 1 | 0.02 | +info@netcraft.com |
| 40 | 5 | 0.01 | 5 | 0.10 | ) - BrowseX (2.0.0 Windows |
| 41 | 4 | 0.01 | 2 | 0.04 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 42 | 4 | 0.01 | 2 | 0.04 | Windows 3.1 |
| 43 | 4 | 0.01 | 4 | 0.08 | +http://alphaseobot.com/bot.html |
| 44 | 3 | 0.01 | 3 | 0.06 | Linux [unknown version] |
| 45 | 2 | 0.01 | 2 | 0.04 | +http://pmoz.info/doc/botinfo.htm |
| 46 | 2 | 0.01 | 1 | 0.02 | X11 |
| 47 | 2 | 0.01 | 1 | 0.02 | +http://duckduckgo.com |
| 48 | 1 | 0.00 | 1 | 0.02 | +http://sur.ly/bot.html |
| 49 | 1 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/Backlink-Check... |
| 50 | 1 | 0.00 | 1 | 0.02 | +http://glutenfreepleasure.com/ |
| 51 | 1 | 0.00 | 0 | 0.00 | +https://extlinks.com/Bot.html |
| 52 | 1 | 0.00 | 1 | 0.02 | Linux i586 [unknown version] |
