| Used Operating Systems |
| 1 | 151669 | 55.85 | 698 | 3.23 | http://mj12bot.com/ |
| 2 | 72770 | 26.79 | 1891 | 8.76 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 25095 | 9.24 | 15742 | 72.92 | +http://ahrefs.com/robot/ |
| 4 | 5055 | 1.86 | 839 | 3.89 | Windows NT |
| 5 | 4476 | 1.65 | 5 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 6 | 3322 | 1.22 | 1 | 0.00 | +http://megaindex.com/crawler |
| 7 | 2631 | 0.97 | 393 | 1.82 | +http://www.linkdex.com/bots/ |
| 8 | 2585 | 0.95 | 203 | 0.94 | +http://yandex.com/bots |
| 9 | 1921 | 0.71 | 1341 | 6.21 | +http://www.baidu.com/search/spider.html |
| 10 | 499 | 0.18 | 150 | 0.69 | +http://www.google.com/bot.html |
| 11 | 433 | 0.16 | 4 | 0.02 | +http://www.lumtel.com/bot/ |
| 12 | 385 | 0.14 | 152 | 0.70 | +http://www.bing.com/bingbot.htm |
| 13 | 188 | 0.07 | 11 | 0.05 | +http://siteexplorer.info/Backlink-Check... |
| 14 | 187 | 0.07 | 48 | 0.22 | +http://www.semrush.com/bot.html |
| 15 | 174 | 0.06 | 51 | 0.24 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 44 | 0.02 | 7 | 0.03 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 17 | 41 | 0.02 | 10 | 0.05 | http://www.botje.com/plukkie.htm |
| 18 | 27 | 0.01 | 3 | 0.01 | +http://www.seokicks.de/robot.html |
| 19 | 20 | 0.01 | 11 | 0.05 | +http://www.uptime.com/uptimebot |
| 20 | 12 | 0.00 | 2 | 0.01 | +http://www.profound.net/domainappender |
| 21 | 9 | 0.00 | 5 | 0.02 | +http://sur.ly/bot.html |
| 22 | 7 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 23 | 6 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 24 | 6 | 0.00 | 3 | 0.01 | +http://www.exabot.com/go/robot |
| 25 | 4 | 0.00 | 2 | 0.01 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 26 | 4 | 0.00 | 2 | 0.01 | http://www.majestic12.co.uk/bot.php?+ |
| 27 | 4 | 0.00 | 2 | 0.01 | +http://duckduckgo.com |
| 28 | 3 | 0.00 | 3 | 0.01 | X11 |
| 29 | 2 | 0.00 | 2 | 0.01 | Windows 2000 |
| 30 | 2 | 0.00 | 2 | 0.01 | Intel Mac OS X |
| 31 | 2 | 0.00 | 2 | 0.01 | Linux 2.0.x |
| 32 | 2 | 0.00 | 2 | 0.01 | Windows XP |
| 33 | 1 | 0.00 | 1 | 0.00 | PPC Mac OS X Mach-O |
