| Used Operating Systems |
| 1 | 19276 | 45.81 | 212 | 2.95 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 10424 | 24.77 | 135 | 1.88 | +http://ahrefs.com/robot/ |
| 3 | 5183 | 12.32 | 3655 | 50.85 | +http://www.baidu.com/search/spider.html |
| 4 | 3375 | 8.02 | 1563 | 21.74 | Windows NT |
| 5 | 1054 | 2.50 | 192 | 2.67 | +http://www.google.com/bot.html |
| 6 | 815 | 1.94 | 305 | 4.24 | +http://www.bing.com/bingbot.htm |
| 7 | 588 | 1.40 | 479 | 6.66 | +http://www.linkdex.com/bots/ |
| 8 | 454 | 1.08 | 137 | 1.91 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 149 | 0.35 | 146 | 2.03 | +http://monasterytea.spbdyet.ru |
| 10 | 133 | 0.32 | 51 | 0.71 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 73 | 0.17 | 20 | 0.28 | +http://yandex.com/bots |
| 12 | 62 | 0.15 | 24 | 0.33 | Windows 98 |
| 13 | 53 | 0.13 | 53 | 0.74 | +http://warifort.moykrest.ru/ |
| 14 | 52 | 0.12 | 15 | 0.21 | +http://fulltext.sblog.cz/ |
| 15 | 48 | 0.11 | 42 | 0.58 | Windows 95 |
| 16 | 44 | 0.10 | 18 | 0.25 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 32 | 0.08 | 8 | 0.11 | +http://OpenLinkProfiler.org/bot |
| 18 | 28 | 0.07 | 14 | 0.19 | +http://help.coccoc.com/ |
| 19 | 22 | 0.05 | 2 | 0.03 | +http://www.seokicks.de/robot.html |
| 20 | 20 | 0.05 | 9 | 0.13 | +http://duckduckgo.com |
| 21 | 14 | 0.03 | 11 | 0.15 | Windows 2000 |
| 22 | 14 | 0.03 | 10 | 0.14 | Windows 3.1 |
| 23 | 13 | 0.03 | 11 | 0.15 | Auto; Windows |
| 24 | 12 | 0.03 | 8 | 0.11 | MSIE 5.5; Windows NT 4.0 |
| 25 | 12 | 0.03 | 6 | 0.08 | +http://www.meanpath.com/meanpathbot.htm... |
| 26 | 11 | 0.03 | 2 | 0.03 | Windows XP |
| 27 | 11 | 0.03 | 8 | 0.11 | Windows ME |
| 28 | 11 | 0.03 | 4 | 0.06 | +http://www.semrush.com/bot.html |
| 29 | 10 | 0.02 | 1 | 0.01 | +https://www.aihitdata.com/about |
| 30 | 10 | 0.02 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 31 | 10 | 0.02 | 6 | 0.08 | +http://www.exabot.com/go/robot |
| 32 | 9 | 0.02 | 7 | 0.10 | MSIE 5.5; Windows NT 5.0 |
| 33 | 9 | 0.02 | 8 | 0.11 | ) - BrowseX (2.0.0 Windows |
| 34 | 7 | 0.02 | 1 | 0.01 | +http://www.xovibot.net/ |
| 35 | 6 | 0.01 | 3 | 0.04 | X11 |
| 36 | 4 | 0.01 | 4 | 0.06 | Windows CE |
| 37 | 4 | 0.01 | 4 | 0.06 | Linux [unknown version] |
| 38 | 4 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 39 | 4 | 0.01 | 2 | 0.03 | +http://www.wmtips.com/tools/ |
| 40 | 3 | 0.01 | 3 | 0.04 | +http://pmoz.info/doc/botinfo.htm |
| 41 | 3 | 0.01 | 3 | 0.04 | Linux i686 [unknown version] |
| 42 | 3 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 43 | 3 | 0.01 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 44 | 2 | 0.00 | 2 | 0.03 | +https://gimmeusa.com/pages/crawler |
| 45 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 46 | 2 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 47 | 1 | 0.00 | 1 | 0.01 | +http://sur.ly/bot.html |
| 48 | 1 | 0.00 | 0 | 0.00 | +https://wbsrch.com |
| 49 | 1 | 0.00 | 1 | 0.01 | +http://www.grapeshot.co.uk/crawler.php |
