| Used Operating Systems |
| 1 | 11073 | 50.71 | 152 | 2.69 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 3772 | 17.27 | 1433 | 25.39 | Windows NT |
| 3 | 3192 | 14.62 | 2719 | 48.18 | +http://www.baidu.com/search/spider.html |
| 4 | 1467 | 6.72 | 699 | 12.38 | +http://www.google.com/bot.html |
| 5 | 667 | 3.05 | 57 | 1.01 | +http://yandex.com/bots |
| 6 | 556 | 2.55 | 248 | 4.39 | +http://www.bing.com/bingbot.htm |
| 7 | 434 | 1.99 | 124 | 2.20 | +http://www.linkdex.com/bots/ |
| 8 | 171 | 0.78 | 59 | 1.05 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 69 | 0.32 | 17 | 0.30 | +http://www.profound.net/domainappender |
| 10 | 35 | 0.16 | 20 | 0.35 | +http://ahrefs.com/robot/ |
| 11 | 33 | 0.15 | 10 | 0.18 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 31 | 0.14 | 5 | 0.09 | http://crawler.sistrix.net/ |
| 13 | 31 | 0.14 | 12 | 0.21 | +http://www.semrush.com/bot.html |
| 14 | 30 | 0.14 | 12 | 0.21 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 30 | 0.14 | 2 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 16 | 29 | 0.13 | 2 | 0.04 | +http://advbot.net/bot.html |
| 17 | 27 | 0.12 | 1 | 0.02 | +http://webmeup-crawler.com/ |
| 18 | 25 | 0.11 | 1 | 0.02 | +http://www.similartech.com/smtbot |
| 19 | 20 | 0.09 | 2 | 0.04 | crawler@mixrank.com |
| 20 | 17 | 0.08 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 21 | 16 | 0.07 | 8 | 0.14 | +http://duckduckgo.com |
| 22 | 13 | 0.06 | 1 | 0.02 | +http://www.aihitdata.com/about |
| 23 | 12 | 0.05 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 24 | 12 | 0.05 | 6 | 0.11 | +http://www.exabot.com/go/robot |
| 25 | 9 | 0.04 | 9 | 0.16 | +http://www.domaintuno.com/robot |
| 26 | 8 | 0.04 | 6 | 0.11 | Windows 98 |
| 27 | 8 | 0.04 | 4 | 0.07 | +http://www.meanpath.com/meanpathbot.htm... |
| 28 | 6 | 0.03 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 29 | 5 | 0.02 | 5 | 0.09 | Windows 95 |
| 30 | 5 | 0.02 | 5 | 0.09 | MSIE 5.5; Windows NT 5.0 |
| 31 | 4 | 0.02 | 1 | 0.02 | +http://isdownload.biz |
| 32 | 4 | 0.02 | 2 | 0.04 | +info@netcraft.com |
| 33 | 4 | 0.02 | 2 | 0.04 | +http://gimme60.com |
| 34 | 3 | 0.01 | 3 | 0.05 | http://www.openfos.com |
| 35 | 3 | 0.01 | 3 | 0.05 | http://www.topicway.com |
| 36 | 2 | 0.01 | 1 | 0.02 | +http://www.domainoptima.com/robot |
| 37 | 2 | 0.01 | 2 | 0.04 | Linux i686 [unknown version] |
| 38 | 2 | 0.01 | 2 | 0.04 | +http://www.grapeshot.co.uk/crawler.php |
| 39 | 1 | 0.00 | 1 | 0.02 | Macintosh; Intel Mac OS X 10_7_3; Triden... |
| 40 | 1 | 0.00 | 1 | 0.02 | Windows 2000 |
| 41 | 1 | 0.00 | 1 | 0.02 | Windows 3.1 |
| 42 | 1 | 0.00 | 1 | 0.02 | Windows ME |
| 43 | 1 | 0.00 | 1 | 0.02 | MSIE 5.5; Windows NT 4.0 |
| 44 | 1 | 0.00 | 1 | 0.02 | +; |
| 45 | 1 | 0.00 | 1 | 0.02 | X11 |
| 46 | 1 | 0.00 | 1 | 0.02 | +http://www.xovibot.net/ |
| 47 | 1 | 0.00 | 0 | 0.00 | Android 2.3.5 |
