| Used Operating Systems |
| 1 | 3587 | 33.34 | 2911 | 59.13 | +http://ahrefs.com/robot/ |
| 2 | 1981 | 18.41 | 285 | 5.79 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 1891 | 17.57 | 47 | 0.95 | http://mj12bot.com/ |
| 4 | 1494 | 13.88 | 1247 | 25.33 | +http://www.baidu.com/search/spider.html |
| 5 | 594 | 5.52 | 136 | 2.76 | Windows NT |
| 6 | 457 | 4.25 | 73 | 1.48 | +http://yandex.com/bots |
| 7 | 266 | 2.47 | 92 | 1.87 | +http://www.semrush.com/bot.html |
| 8 | 226 | 2.10 | 71 | 1.44 | +http://www.linkdex.com/bots/ |
| 9 | 94 | 0.87 | 33 | 0.67 | +http://www.google.com/bot.html |
| 10 | 64 | 0.59 | 19 | 0.39 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 54 | 0.50 | 3 | 0.06 | +http://www.bing.com/bingbot.htm |
| 12 | 50 | 0.46 | 4 | 0.08 | +http://www.findxbot.com |
| 13 | 2 | 0.02 | 2 | 0.04 | +info@netcraft.com |
