| Used Operating Systems |
| 1 | 154362 | 55.61 | 711 | 3.54 | http://mj12bot.com/ |
| 2 | 62614 | 22.56 | 1071 | 5.33 | http://www.opensiteexplorer.org/dotbot, ... |
| 3 | 22969 | 8.27 | 14799 | 73.60 | +http://ahrefs.com/robot/ |
| 4 | 13362 | 4.81 | 384 | 1.91 | +http://yandex.com/bots |
| 5 | 6552 | 2.36 | 2 | 0.01 | +http://megaindex.com/crawler |
| 6 | 6127 | 2.21 | 476 | 2.37 | Windows NT |
| 7 | 3977 | 1.43 | 4 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 8 | 3061 | 1.10 | 419 | 2.08 | +http://www.linkdex.com/bots/ |
| 9 | 2138 | 0.77 | 1610 | 8.01 | +http://www.baidu.com/search/spider.html |
| 10 | 769 | 0.28 | 194 | 0.96 | +http://www.google.com/bot.html |
| 11 | 642 | 0.23 | 181 | 0.90 | +http://www.bing.com/bingbot.htm |
| 12 | 356 | 0.13 | 82 | 0.41 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 198 | 0.07 | 22 | 0.11 | +http://www.semrush.com/bot.html |
| 14 | 94 | 0.03 | 9 | 0.04 | +http://siteexplorer.info/Backlink-Check... |
| 15 | 86 | 0.03 | 30 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 16 | 45 | 0.02 | 30 | 0.15 | +http://www.uptime.com/uptimebot |
| 17 | 39 | 0.01 | 12 | 0.06 | Windows XP |
| 18 | 36 | 0.01 | 4 | 0.02 | +http://www.seokicks.de/robot.html |
| 19 | 28 | 0.01 | 10 | 0.05 | Windows 95 |
| 20 | 28 | 0.01 | 12 | 0.06 | +http://www.exabot.com/go/robot |
| 21 | 15 | 0.01 | 5 | 0.02 | Windows 3.1 |
| 22 | 14 | 0.01 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 23 | 12 | 0.00 | 6 | 0.03 | +http://duckduckgo.com |
| 24 | 10 | 0.00 | 4 | 0.02 | Windows 98 |
| 25 | 8 | 0.00 | 4 | 0.02 | Windows CE |
| 26 | 7 | 0.00 | 5 | 0.02 | +http://sur.ly/bot.html |
| 27 | 6 | 0.00 | 3 | 0.01 | +http://cs.daum.net/faq/15/4118.html?faq... |
| 28 | 4 | 0.00 | 2 | 0.01 | Auto; Windows |
| 29 | 4 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 30 | 4 | 0.00 | 2 | 0.01 | http://www.majestic12.co.uk/bot.php?+ |
| 31 | 3 | 0.00 | 3 | 0.01 | X11 |
| 32 | 3 | 0.00 | 1 | 0.00 | MSIE 5.5; Windows NT 4.0 |
| 33 | 2 | 0.00 | 0 | 0.00 | Android |
| 34 | 2 | 0.00 | 2 | 0.01 | Linux [unknown version] |
| 35 | 2 | 0.00 | 2 | 0.01 | +http://www.google.com/bot.html,Yahoo! S... |
| 36 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 37 | 2 | 0.00 | 2 | 0.01 | +info@netcraft.com |
| 38 | 2 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 39 | 2 | 0.00 | 0 | 0.00 | UrlCrawler; http://www.seomoz.org/dp/rog... |
| 40 | 1 | 0.00 | 1 | 0.00 | Linux i686 [unknown version] |
