| Used Operating Systems |
| 1 | 447 | 34.38 | 425 | 47.12 | Windows NT |
| 2 | 312 | 24.00 | 272 | 30.16 | +http://www.baidu.com/search/spider.html |
| 3 | 295 | 22.69 | 138 | 15.30 | +http://www.google.com/bot.html |
| 4 | 82 | 6.31 | 7 | 0.78 | +http://www.bing.com/bingbot.htm |
| 5 | 54 | 4.15 | 15 | 1.66 | +http://yandex.com/bots |
| 6 | 22 | 1.69 | 8 | 0.89 | http://help.yahoo.com/help/us/ysearch/sl... |
| 7 | 20 | 1.54 | 10 | 1.11 | +http://www.meanpath.com/meanpathbot.htm... |
| 8 | 14 | 1.08 | 2 | 0.22 | http://filterdb.iss.net/crawler/ |
| 9 | 12 | 0.92 | 4 | 0.44 | +http://OpenLinkProfiler.org/bot |
| 10 | 9 | 0.69 | 9 | 1.00 | +http://www.domaintuno.com/robot |
| 11 | 8 | 0.62 | 0 | 0.00 | http://www.majestic12.co.uk/bot.php?+ |
| 12 | 7 | 0.54 | 4 | 0.44 | +http://www.semrush.com/bot.html |
| 13 | 6 | 0.46 | 0 | 0.00 | +http://ahrefs.com/robot/ |
| 14 | 4 | 0.31 | 2 | 0.22 | +info@netcraft.com |
| 15 | 2 | 0.15 | 2 | 0.22 | +http://www.seograph.net/bot.html |
| 16 | 2 | 0.15 | 2 | 0.22 | Linux [unknown version] |
| 17 | 2 | 0.15 | 2 | 0.22 | http://nmap.org/book/nse.html |
| 18 | 2 | 0.15 | 0 | 0.00 | http://www.opensiteexplorer.org/dotbot, ... |
