| Used Operating Systems |
| 1 | 4454 | 86.42 | 3209 | 90.60 | +http://www.baidu.com/search/spider.html |
| 2 | 260 | 5.04 | 69 | 1.95 | +http://yandex.com/bots |
| 3 | 146 | 2.83 | 104 | 2.94 | +http://www.uptime.com/uptimebot |
| 4 | 98 | 1.90 | 65 | 1.84 | +http://www.google.com/bot.html |
| 5 | 89 | 1.73 | 67 | 1.89 | Windows NT |
| 6 | 23 | 0.45 | 3 | 0.08 | +http://www.bing.com/bingbot.htm |
| 7 | 15 | 0.29 | 5 | 0.14 | +http://OpenLinkProfiler.org/bot |
| 8 | 14 | 0.27 | 2 | 0.06 | http://filterdb.iss.net/crawler/ |
| 9 | 10 | 0.19 | 4 | 0.11 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 9 | 0.17 | 3 | 0.08 | +http://siteexplorer.info/Backlink-Check... |
| 11 | 9 | 0.17 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 12 | 6 | 0.12 | 0 | 0.00 | Windows 98 |
| 13 | 4 | 0.08 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 14 | 4 | 0.08 | 2 | 0.06 | +info@netcraft.com |
| 15 | 3 | 0.06 | 0 | 0.00 | http://mj12bot.com/ |
| 16 | 2 | 0.04 | 2 | 0.06 | http://nmap.org/book/nse.html |
| 17 | 2 | 0.04 | 2 | 0.06 | +http://www.google.com/bot.html,Yahoo! S... |
| 18 | 2 | 0.04 | 2 | 0.06 | Linux [unknown version] |
| 19 | 2 | 0.04 | 2 | 0.06 | Linux i586 [unknown version] |
| 20 | 2 | 0.04 | 1 | 0.03 | +http://duckduckgo.com |
