| Used Operating Systems |
| 1 | 2009 | 22.97 | 404 | 10.07 | +http://www.bing.com/bingbot.htm |
| 2 | 2006 | 22.94 | 1858 | 46.30 | +http://www.baidu.com/search/spider.html |
| 3 | 1571 | 17.96 | 42 | 1.05 | +http://yandex.com/bots |
| 4 | 1341 | 15.33 | 984 | 24.52 | Windows NT |
| 5 | 743 | 8.50 | 362 | 9.02 | +http://www.google.com/bot.html |
| 6 | 131 | 1.50 | 115 | 2.87 | +http://www.easou.com/search/spider.html |
| 7 | 114 | 1.30 | 2 | 0.05 | +http://webmeup-crawler.com/ |
| 8 | 105 | 1.20 | 35 | 0.87 | +http://www.meanpath.com/meanpathbot.htm... |
| 9 | 101 | 1.15 | 43 | 1.07 | +http://ahrefs.com/robot/ |
| 10 | 94 | 1.07 | 15 | 0.37 | http://www.majestic12.co.uk/bot.php?+ |
| 11 | 91 | 1.04 | 1 | 0.02 | +http://www.apercite.fr/robot/index.html |
| 12 | 80 | 0.91 | 37 | 0.92 | +http://gimme60.com |
| 13 | 64 | 0.73 | 2 | 0.05 | +http://endb-consolidated.aihit.com/ |
| 14 | 63 | 0.72 | 35 | 0.87 | http://www.opensiteexplorer.org/dotbot, ... |
| 15 | 62 | 0.71 | 22 | 0.55 | +http://www.exabot.com/go/robot |
| 16 | 24 | 0.27 | 2 | 0.05 | http://www.lipperhey.com/ |
| 17 | 24 | 0.27 | 6 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 14 | 0.16 | 7 | 0.17 | http://crawler.sistrix.net/ |
| 19 | 14 | 0.16 | 1 | 0.02 | +http://www.profound.net/domainappender |
| 20 | 12 | 0.14 | 4 | 0.10 | +http://www.grapeshot.co.uk/crawler.php |
| 21 | 8 | 0.09 | 2 | 0.05 | +http://filterdb.iss.net/crawler/ |
| 22 | 8 | 0.09 | 4 | 0.10 | http://help.yahoo.com/help/us/ysearch/sl... |
| 23 | 8 | 0.09 | 2 | 0.05 | +http://plus5files.net |
| 24 | 8 | 0.09 | 2 | 0.05 | http://filterdb.iss.net/crawler/ |
| 25 | 6 | 0.07 | 2 | 0.05 | +http://onlythegames.com |
| 26 | 6 | 0.07 | 4 | 0.10 | +http://wmaid.com/explore/ |
| 27 | 6 | 0.07 | 2 | 0.05 | +http://mydownloadengine.com |
| 28 | 4 | 0.05 | 1 | 0.02 | +http://uni5download.com |
| 29 | 4 | 0.05 | 1 | 0.02 | +http://u8files.asia |
| 30 | 4 | 0.05 | 3 | 0.07 | +http://www.semrush.com/bot.html |
| 31 | 3 | 0.03 | 1 | 0.02 | +http://downloaflare.biz |
| 32 | 3 | 0.03 | 1 | 0.02 | +http://a14download.com |
| 33 | 3 | 0.03 | 1 | 0.02 | +http://dl2engine.net |
| 34 | 2 | 0.02 | 2 | 0.05 | Win32 |
| 35 | 2 | 0.02 | 2 | 0.05 | Linux 2.4.x |
| 36 | 2 | 0.02 | 2 | 0.05 | Linux [unknown version] |
| 37 | 2 | 0.02 | 1 | 0.02 | +info@netcraft.com |
| 38 | 2 | 0.02 | 2 | 0.05 | Intel Mac OS X 10.6 |
| 39 | 1 | 0.01 | 1 | 0.02 | Windows 98 |
