| Used Operating Systems |
| 1 | 37316 | 32.64 | 364 | 2.53 | +http://www.semrush.com/bot.html |
| 2 | 34710 | 30.36 | 11970 | 83.19 | +http://ahrefs.com/robot/ |
| 3 | 31116 | 27.22 | 261 | 1.81 | http://mj12bot.com/ |
| 4 | 6564 | 5.74 | 3 | 0.02 | +http://megaindex.com/crawler |
| 5 | 2111 | 1.85 | 860 | 5.98 | Windows NT |
| 6 | 836 | 0.73 | 454 | 3.16 | +http://www.baidu.com/search/spider.html |
| 7 | 644 | 0.56 | 178 | 1.24 | +http://yandex.com/bots |
| 8 | 517 | 0.45 | 115 | 0.80 | +http://www.linkdex.com/bots/ |
| 9 | 331 | 0.29 | 130 | 0.90 | +http://www.google.com/bot.html |
| 10 | 89 | 0.08 | 13 | 0.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 31 | 0.03 | 17 | 0.12 | +http://www.bing.com/bingbot.htm |
| 12 | 22 | 0.02 | 11 | 0.08 | +http://napoveda.seznam.cz/en/seznambot-... |
| 13 | 16 | 0.01 | 4 | 0.03 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 4 | 0.00 | 2 | 0.01 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 4 | 0.00 | 2 | 0.01 | Linux i686 [unknown version] |
| 16 | 3 | 0.00 | 3 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 17 | 2 | 0.00 | 2 | 0.01 | Windows 98 |
