| Used Operating Systems |
| 1 | 15375 | 29.10 | 174 | 1.33 | http://mj12bot.com/ |
| 2 | 15162 | 28.70 | 11153 | 85.45 | +http://ahrefs.com/robot/ |
| 3 | 10264 | 19.43 | 527 | 4.04 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 5634 | 10.67 | 374 | 2.87 | Windows NT |
| 5 | 3322 | 6.29 | 1 | 0.01 | +http://megaindex.com/crawler |
| 6 | 851 | 1.61 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 7 | 626 | 1.19 | 145 | 1.11 | +http://www.linkdex.com/bots/ |
| 8 | 556 | 1.05 | 399 | 3.06 | +http://www.baidu.com/search/spider.html |
| 9 | 471 | 0.89 | 131 | 1.00 | +http://www.bing.com/bingbot.htm |
| 10 | 222 | 0.42 | 69 | 0.53 | +http://www.google.com/bot.html |
| 11 | 164 | 0.31 | 26 | 0.20 | +http://yandex.com/bots |
| 12 | 97 | 0.18 | 26 | 0.20 | +http://www.semrush.com/bot.html |
| 13 | 38 | 0.07 | 10 | 0.08 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 22 | 0.04 | 2 | 0.02 | crawler@mixrank.com |
| 15 | 4 | 0.01 | 2 | 0.02 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 16 | 4 | 0.01 | 1 | 0.01 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 4 | 0.01 | 2 | 0.02 | Linux i686 [unknown version] |
| 18 | 4 | 0.01 | 2 | 0.02 | +http://www.exabot.com/go/robot |
| 19 | 2 | 0.00 | 2 | 0.02 | Macintosh |
| 20 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 21 | 2 | 0.00 | 2 | 0.02 | +info@netcraft.com |
