| Used Operating Systems |
| 1 | 3976 | 88.81 | 2789 | 93.87 | +http://www.baidu.com/search/spider.html |
| 2 | 258 | 5.76 | 70 | 2.36 | +http://yandex.com/bots |
| 3 | 56 | 1.25 | 47 | 1.58 | Windows NT |
| 4 | 42 | 0.94 | 19 | 0.64 | +http://www.uptime.com/uptimebot |
| 5 | 37 | 0.83 | 16 | 0.54 | +http://www.google.com/bot.html |
| 6 | 22 | 0.49 | 2 | 0.07 | http://filterdb.iss.net/crawler/ |
| 7 | 20 | 0.45 | 4 | 0.13 | +http://www.bing.com/bingbot.htm |
| 8 | 18 | 0.40 | 6 | 0.20 | +http://OpenLinkProfiler.org/bot |
| 9 | 12 | 0.27 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 10 | 8 | 0.18 | 4 | 0.13 | +http://siteexplorer.info/Backlink-Check... |
| 11 | 6 | 0.13 | 2 | 0.07 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 6 | 0.13 | 4 | 0.13 | +info@netcraft.com |
| 13 | 4 | 0.09 | 2 | 0.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 14 | 4 | 0.09 | 2 | 0.07 | +http://duckduckgo.com |
| 15 | 2 | 0.04 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
| 16 | 2 | 0.04 | 0 | 0.00 | http://mj12bot.com/ |
| 17 | 2 | 0.04 | 2 | 0.07 | http://nmap.org/book/nse.html |
| 18 | 2 | 0.04 | 2 | 0.07 | +http://megaindex.com/crawler |
