| Used Operating Systems |
| 1 | 38714 | 92.42 | 289 | 18.35 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 872 | 2.08 | 629 | 39.94 | Windows NT |
| 3 | 358 | 0.85 | 275 | 17.46 | +http://www.baidu.com/search/spider.html |
| 4 | 312 | 0.74 | 92 | 5.84 | +http://www.bing.com/bingbot.htm |
| 5 | 304 | 0.73 | 4 | 0.25 | +http://OpenLinkProfiler.org/bot |
| 6 | 288 | 0.69 | 64 | 4.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 7 | 242 | 0.58 | 73 | 4.63 | +http://yandex.com/bots |
| 8 | 209 | 0.50 | 29 | 1.84 | +http://www.google.com/bot.html |
| 9 | 150 | 0.36 | 7 | 0.44 | Linux [unknown version] |
| 10 | 124 | 0.30 | 32 | 2.03 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 90 | 0.21 | 19 | 1.21 | +http://ahrefs.com/robot/ |
| 12 | 78 | 0.19 | 19 | 1.21 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 72 | 0.17 | 20 | 1.27 | +http://www.exabot.com/go/robot |
| 14 | 31 | 0.07 | 7 | 0.44 | Linux i686 [unknown version] |
| 15 | 18 | 0.04 | 2 | 0.13 | +http://filterdb.iss.net/crawler/ |
| 16 | 14 | 0.03 | 7 | 0.44 | +http://www.meanpath.com/meanpathbot.htm... |
| 17 | 4 | 0.01 | 2 | 0.13 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 18 | 4 | 0.01 | 1 | 0.06 | X11 |
| 19 | 2 | 0.00 | 2 | 0.13 | +http://www.seograph.net/bot.html |
| 20 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 21 | 2 | 0.00 | 2 | 0.13 | Linux i586 [unknown version] |
