| Used Operating Systems |
| 1 | 15550 | 34.68 | 224 | 4.83 | +http://ahrefs.com/robot/ |
| 2 | 14617 | 32.60 | 92 | 1.98 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 6116 | 13.64 | 1240 | 26.73 | Windows NT |
| 4 | 3615 | 8.06 | 2469 | 53.22 | +http://www.baidu.com/search/spider.html |
| 5 | 3320 | 7.40 | 4 | 0.09 | +http://OpenLinkProfiler.org/bot |
| 6 | 858 | 1.91 | 393 | 8.47 | +http://www.google.com/bot.html |
| 7 | 340 | 0.76 | 111 | 2.39 | +http://www.bing.com/bingbot.htm |
| 8 | 200 | 0.45 | 35 | 0.75 | +http://yandex.com/bots |
| 9 | 90 | 0.20 | 27 | 0.58 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 43 | 0.10 | 5 | 0.11 | http://www.opensiteexplorer.org/dotbot, ... |
| 11 | 39 | 0.09 | 7 | 0.15 | Linux [unknown version] |
| 12 | 16 | 0.04 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 13 | 15 | 0.03 | 15 | 0.32 | Linux i686 [unknown version] |
| 14 | 6 | 0.01 | 3 | 0.06 | +http://www.meanpath.com/meanpathbot.htm... |
| 15 | 4 | 0.01 | 3 | 0.06 | +info@netcraft.com |
| 16 | 3 | 0.01 | 3 | 0.06 | http://nmap.org/book/nse.html |
| 17 | 3 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 18 | 3 | 0.01 | 3 | 0.06 | Linux i586 [unknown version] |
| 19 | 2 | 0.00 | 2 | 0.04 | Windows CE |
| 20 | 1 | 0.00 | 1 | 0.02 | Windows ME |
| 21 | 1 | 0.00 | 1 | 0.02 | Windows 98 |
