| Used Operating Systems |
| 1 | 501 | 36.65 | 8 | 3.08 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 151 | 11.05 | 108 | 41.54 | +http://www.baidu.com/search/spider.html |
| 3 | 136 | 9.95 | 3 | 1.15 | +http://OpenLinkProfiler.org/bot |
| 4 | 128 | 9.36 | 37 | 14.23 | +http://www.bing.com/bingbot.htm |
| 5 | 113 | 8.27 | 43 | 16.54 | +http://yandex.com/bots |
| 6 | 86 | 6.29 | 19 | 7.31 | +http://ahrefs.com/robot/ |
| 7 | 83 | 6.07 | 14 | 5.38 | Windows NT |
| 8 | 80 | 5.85 | 5 | 1.92 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 44 | 3.22 | 10 | 3.85 | +http://www.google.com/bot.html |
| 10 | 35 | 2.56 | 11 | 4.23 | +http://www.exabot.com/go/robot |
| 11 | 4 | 0.29 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 4 | 0.29 | 0 | 0.00 | Linux i686 [unknown version] |
| 13 | 2 | 0.15 | 2 | 0.77 | +info@netcraft.com |
