| Used Operating Systems |
| 1 | 2441 | 41.74 | 2117 | 62.63 | +http://www.baidu.com/search/spider.html |
| 2 | 2062 | 35.26 | 648 | 19.17 | Windows NT |
| 3 | 343 | 5.87 | 175 | 5.18 | +http://www.bing.com/bingbot.htm |
| 4 | 313 | 5.35 | 152 | 4.50 | +http://www.google.com/bot.html |
| 5 | 167 | 2.86 | 100 | 2.96 | +http://yandex.com/bots |
| 6 | 123 | 2.10 | 39 | 1.15 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 106 | 1.81 | 46 | 1.36 | http://www.opensiteexplorer.org/dotbot, ... |
| 8 | 42 | 0.72 | 12 | 0.36 | Windows XP |
| 9 | 20 | 0.34 | 11 | 0.33 | +http://ahrefs.com/robot/ |
| 10 | 18 | 0.31 | 2 | 0.06 | +http://OpenLinkProfiler.org/bot |
| 11 | 18 | 0.31 | 2 | 0.06 | +https://www.lipperhey.com/en/about/ |
| 12 | 17 | 0.29 | 7 | 0.21 | Windows 95 |
| 13 | 17 | 0.29 | 7 | 0.21 | Windows 98 |
| 14 | 16 | 0.27 | 2 | 0.06 | http://www.searchmetrics.com/en/searchme... |
| 15 | 16 | 0.27 | 8 | 0.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 16 | 0.27 | 8 | 0.24 | +http://www.exabot.com/go/robot |
| 17 | 14 | 0.24 | 4 | 0.12 | Linux [unknown version] |
| 18 | 12 | 0.21 | 4 | 0.12 | Auto; Windows |
| 19 | 12 | 0.21 | 6 | 0.18 | +https://gimmeusa.com/pages/crawler |
| 20 | 12 | 0.21 | 2 | 0.06 | ) - BrowseX (2.0.0 Windows |
| 21 | 8 | 0.14 | 4 | 0.12 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 22 | 8 | 0.14 | 3 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 23 | 8 | 0.14 | 1 | 0.03 | +http://www.seokicks.de/robot.html |
| 24 | 8 | 0.14 | 4 | 0.12 | +http://www.meanpath.com/meanpathbot.htm... |
| 25 | 7 | 0.12 | 1 | 0.03 | Linux i586 [unknown version] |
| 26 | 4 | 0.07 | 4 | 0.12 | http://nmap.org/book/nse.html |
| 27 | 4 | 0.07 | 4 | 0.12 | +http://www.domaintuno.com/robot |
| 28 | 4 | 0.07 | 2 | 0.06 | +info@netcraft.com |
| 29 | 4 | 0.07 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 30 | 2 | 0.03 | 1 | 0.03 | Windows 3.1 |
| 31 | 2 | 0.03 | 2 | 0.06 | +http://www.grapeshot.co.uk/crawler.php |
| 32 | 2 | 0.03 | 2 | 0.06 | Linux i686 [unknown version] |
| 33 | 2 | 0.03 | 0 | 0.00 | OSF1 alpha |
