| Used Operating Systems |
| 1 | 3366 | 33.13 | 2907 | 49.51 | +http://www.baidu.com/search/spider.html |
| 2 | 2698 | 26.56 | 1734 | 29.53 | Windows NT |
| 3 | 1677 | 16.51 | 649 | 11.05 | +http://www.google.com/bot.html |
| 4 | 1143 | 11.25 | 328 | 5.59 | +http://www.bing.com/bingbot.htm |
| 5 | 826 | 8.13 | 66 | 1.12 | +http://yandex.com/bots |
| 6 | 105 | 1.03 | 64 | 1.09 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 67 | 0.66 | 21 | 0.36 | +http://www.exabot.com/go/robot |
| 8 | 42 | 0.41 | 6 | 0.10 | +http://OpenLinkProfiler.org/bot |
| 9 | 36 | 0.35 | 11 | 0.19 | http://www.majestic12.co.uk/bot.php?+ |
| 10 | 35 | 0.34 | 22 | 0.37 | +http://ahrefs.com/robot/ |
| 11 | 33 | 0.32 | 11 | 0.19 | +http://www.meanpath.com/meanpathbot.htm... |
| 12 | 18 | 0.18 | 9 | 0.15 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 12 | 0.12 | 2 | 0.03 | http://www.searchmetrics.com/en/searchme... |
| 14 | 11 | 0.11 | 1 | 0.02 | Linux [unknown version] |
| 15 | 10 | 0.10 | 8 | 0.14 | +info@netcraft.com |
| 16 | 10 | 0.10 | 0 | 0.00 | +http://siteexplorer.info/ |
| 17 | 8 | 0.08 | 2 | 0.03 | +http://filterdb.iss.net/crawler/ |
| 18 | 8 | 0.08 | 4 | 0.07 | http://crawler.sistrix.net/ |
| 19 | 8 | 0.08 | 4 | 0.07 | +http://help.coccoc.com/ |
| 20 | 8 | 0.08 | 1 | 0.02 | http://filterdb.iss.net/crawler/ |
| 21 | 6 | 0.06 | 2 | 0.03 | +http://mydownloadengine.com |
| 22 | 4 | 0.04 | 2 | 0.03 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 23 | 4 | 0.04 | 2 | 0.03 | +http://wmaid.com/explore/ |
| 24 | 4 | 0.04 | 1 | 0.02 | +http://prlog.ru/ |
| 25 | 4 | 0.04 | 2 | 0.03 | +http://fulltext.sblog.cz/ |
| 26 | 3 | 0.03 | 3 | 0.05 | Win32 |
| 27 | 3 | 0.03 | 2 | 0.03 | X11 |
| 28 | 3 | 0.03 | 1 | 0.02 | +http://inload.me |
| 29 | 2 | 0.02 | 2 | 0.03 | +http://136.186.231.16 |
| 30 | 2 | 0.02 | 2 | 0.03 | +http://fb02itsscan.fh-muenster.de |
| 31 | 1 | 0.01 | 1 | 0.02 | Linux 2.4.x |
| 32 | 1 | 0.01 | 1 | 0.02 | Windows 98 |
| 33 | 1 | 0.01 | 1 | 0.02 | PPC Mac OS X Mach-O |
