| Used Operating Systems |
| 1 | 43462 | 56.27 | 280 | 2.15 | http://mj12bot.com/ |
| 2 | 13001 | 16.83 | 9798 | 75.39 | +http://ahrefs.com/robot/ |
| 3 | 8522 | 11.03 | 1550 | 11.93 | Windows NT |
| 4 | 5006 | 6.48 | 370 | 2.85 | http://www.opensiteexplorer.org/dotbot, ... |
| 5 | 3328 | 4.31 | 1 | 0.01 | +http://megaindex.com/crawler |
| 6 | 923 | 1.19 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 713 | 0.92 | 587 | 4.52 | +http://www.baidu.com/search/spider.html |
| 8 | 667 | 0.86 | 147 | 1.13 | +http://www.linkdex.com/bots/ |
| 9 | 500 | 0.65 | 2 | 0.02 | Linux i586 [unknown version] |
| 10 | 359 | 0.46 | 127 | 0.98 | +http://www.bing.com/bingbot.htm |
| 11 | 229 | 0.30 | 29 | 0.22 | +http://yandex.com/bots |
| 12 | 213 | 0.28 | 71 | 0.55 | +http://www.google.com/bot.html |
| 13 | 122 | 0.16 | 0 | 0.00 | Linux [unknown version] |
| 14 | 83 | 0.11 | 24 | 0.18 | +http://www.semrush.com/bot.html |
| 15 | 57 | 0.07 | 0 | 0.00 | X11 |
| 16 | 25 | 0.03 | 1 | 0.01 | Android 2.3.5 |
| 17 | 22 | 0.03 | 2 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 4 | 0.01 | 2 | 0.02 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 19 | 4 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 20 | 1 | 0.00 | 1 | 0.01 | +info@netcraft.com |
