| Used Operating Systems |
| 1 | 11325 | 42.51 | 153 | 2.81 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 10263 | 38.52 | 2877 | 52.81 | Windows NT |
| 3 | 1228 | 4.61 | 1013 | 18.59 | +http://www.baidu.com/search/spider.html |
| 4 | 1135 | 4.26 | 180 | 3.30 | +http://www.bing.com/bingbot.htm |
| 5 | 790 | 2.97 | 285 | 5.23 | +http://www.google.com/bot.html |
| 6 | 609 | 2.29 | 328 | 6.02 | +http://ahrefs.com/robot/ |
| 7 | 324 | 1.22 | 83 | 1.52 | +http://yandex.com/bots |
| 8 | 242 | 0.91 | 80 | 1.47 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 161 | 0.60 | 67 | 1.23 | +http://www.linkdex.com/bots/ |
| 10 | 127 | 0.48 | 116 | 2.13 | Windows 95 |
| 11 | 88 | 0.33 | 35 | 0.64 | Windows 98 |
| 12 | 73 | 0.27 | 36 | 0.66 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 25 | 0.09 | 10 | 0.18 | Windows XP |
| 14 | 25 | 0.09 | 23 | 0.42 | Windows ME |
| 15 | 24 | 0.09 | 21 | 0.39 | Auto; Windows |
| 16 | 20 | 0.08 | 19 | 0.35 | Windows 2000 |
| 17 | 19 | 0.07 | 19 | 0.35 | MSIE 5.5; Windows NT 5.0 |
| 18 | 19 | 0.07 | 18 | 0.33 | ) - BrowseX (2.0.0 Windows |
| 19 | 18 | 0.07 | 18 | 0.33 | Windows CE |
| 20 | 17 | 0.06 | 15 | 0.28 | Windows 3.1 |
| 21 | 17 | 0.06 | 17 | 0.31 | MSIE 5.5; Windows NT 4.0 |
| 22 | 11 | 0.04 | 2 | 0.04 | +info@netcraft.com |
| 23 | 10 | 0.04 | 4 | 0.07 | http://www.opensiteexplorer.org/dotbot, ... |
| 24 | 10 | 0.04 | 5 | 0.09 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 9 | 0.03 | 4 | 0.07 | +http://www.exabot.com/go/robot |
| 26 | 7 | 0.03 | 1 | 0.02 | X11 |
| 27 | 6 | 0.02 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 28 | 5 | 0.02 | 1 | 0.02 | Linux i686 [unknown version] |
| 29 | 4 | 0.02 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 4 | 0.02 | 4 | 0.07 | +http://www.domaintuno.com/robot |
| 31 | 4 | 0.02 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 32 | 4 | 0.02 | 2 | 0.04 | +http://duckduckgo.com |
| 33 | 4 | 0.02 | 1 | 0.02 | +http://downloadg5.com |
| 34 | 3 | 0.01 | 1 | 0.02 | http://www.lipperhey.com/ |
| 35 | 2 | 0.01 | 1 | 0.02 | +http://www.semrush.com/bot.html |
| 36 | 2 | 0.01 | 1 | 0.02 | +http://gimme60.com |
| 37 | 2 | 0.01 | 1 | 0.02 | +http://advbot.org/bot.html |
| 38 | 1 | 0.00 | 1 | 0.02 | OSF1 V4.0 alpha |
| 39 | 1 | 0.00 | 1 | 0.02 | Macintosh |
| 40 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 41 | 1 | 0.00 | 1 | 0.02 | +https://www.domaintuno.com/robot |
