| Used Operating Systems |
| 1 | 2384 | 77.18 | 2027 | 87.71 | +http://www.baidu.com/search/spider.html |
| 2 | 213 | 6.90 | 68 | 2.94 | Windows NT |
| 3 | 192 | 6.22 | 54 | 2.34 | +http://www.google.com/bot.html |
| 4 | 127 | 4.11 | 85 | 3.68 | +http://www.bing.com/bingbot.htm |
| 5 | 79 | 2.56 | 44 | 1.90 | +http://yandex.com/bots |
| 6 | 24 | 0.78 | 5 | 0.22 | Windows 98 |
| 7 | 22 | 0.71 | 9 | 0.39 | http://www.majestic12.co.uk/bot.php?+ |
| 8 | 12 | 0.39 | 6 | 0.26 | +http://www.meanpath.com/meanpathbot.htm... |
| 9 | 8 | 0.26 | 2 | 0.09 | +http://filterdb.iss.net/crawler/ |
| 10 | 8 | 0.26 | 1 | 0.04 | FreeBSD [unknown version] |
| 11 | 4 | 0.13 | 2 | 0.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 4 | 0.13 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 13 | 4 | 0.13 | 2 | 0.09 | http://www.botje.com/plukkie.htm |
| 14 | 3 | 0.10 | 1 | 0.04 | +info@netcraft.com |
| 15 | 2 | 0.06 | 2 | 0.09 | +https://www.wslta.com/WoTBoT.html |
| 16 | 1 | 0.03 | 1 | 0.04 | Linux i686 [unknown version] |
| 17 | 1 | 0.03 | 1 | 0.04 | http://nmap.org/book/nse.html |
| 18 | 1 | 0.03 | 1 | 0.04 | Solaris 7.x |
