| Used Operating Systems |
| 1 | 26812 | 36.54 | 256 | 1.80 | http://mj12bot.com/ |
| 2 | 15924 | 21.70 | 11665 | 82.08 | +http://ahrefs.com/robot/ |
| 3 | 15470 | 21.08 | 875 | 6.16 | http://www.opensiteexplorer.org/dotbot, ... |
| 4 | 7369 | 10.04 | 333 | 2.34 | Windows NT |
| 5 | 3322 | 4.53 | 1 | 0.01 | +http://megaindex.com/crawler |
| 6 | 1045 | 1.42 | 5 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 7 | 626 | 0.85 | 458 | 3.22 | +http://www.baidu.com/search/spider.html |
| 8 | 564 | 0.77 | 130 | 0.91 | +http://www.linkdex.com/bots/ |
| 9 | 555 | 0.76 | 142 | 1.00 | +http://www.bing.com/bingbot.htm |
| 10 | 500 | 0.68 | 2 | 0.01 | Linux i586 [unknown version] |
| 11 | 387 | 0.53 | 76 | 0.53 | +http://yandex.com/bots |
| 12 | 268 | 0.37 | 93 | 0.65 | +http://www.google.com/bot.html |
| 13 | 250 | 0.34 | 1 | 0.01 | Linux i686 [unknown version] |
| 14 | 88 | 0.12 | 68 | 0.48 | +http://tiod.ru |
| 15 | 72 | 0.10 | 55 | 0.39 | +http://megogoserial.ru |
| 16 | 70 | 0.10 | 30 | 0.21 | +http://www.semrush.com/bot.html |
| 17 | 26 | 0.04 | 8 | 0.06 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 20 | 0.03 | 7 | 0.05 | +http://www.exabot.com/go/robot |
| 19 | 2 | 0.00 | 2 | 0.01 | Windows 3.1 |
| 20 | 2 | 0.00 | 2 | 0.01 | Windows 98 |
| 21 | 2 | 0.00 | 2 | 0.01 | +info@netcraft.com |
