| Used Operating Systems |
| 1 | 8296 | 38.34 | 1879 | 40.65 | Windows NT |
| 2 | 5540 | 25.60 | 91 | 1.97 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 2637 | 12.19 | 1462 | 31.63 | +http://www.baidu.com/search/spider.html |
| 4 | 2093 | 9.67 | 448 | 9.69 | +http://www.google.com/bot.html |
| 5 | 1585 | 7.32 | 354 | 7.66 | +http://www.bing.com/bingbot.htm |
| 6 | 311 | 1.44 | 33 | 0.71 | +http://ahrefs.com/robot/ |
| 7 | 175 | 0.81 | 4 | 0.09 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 168 | 0.78 | 58 | 1.25 | +http://www.linkdex.com/bots/ |
| 9 | 160 | 0.74 | 9 | 0.19 | +http://fulltext.sblog.cz/ |
| 10 | 118 | 0.55 | 118 | 2.55 | +http://monasterytea.spbdyet.ru |
| 11 | 100 | 0.46 | 23 | 0.50 | http://help.yahoo.com/help/us/ysearch/sl... |
| 12 | 100 | 0.46 | 20 | 0.43 | +http://yandex.com/bots |
| 13 | 67 | 0.31 | 3 | 0.06 | +http://www.seokicks.de/robot.html |
| 14 | 42 | 0.19 | 42 | 0.91 | +http://warifort.moykrest.ru/ |
| 15 | 24 | 0.11 | 1 | 0.02 | WinHttp.WinHttpRequest.5 |
| 16 | 23 | 0.11 | 5 | 0.11 | +http://OpenLinkProfiler.org/bot |
| 17 | 21 | 0.10 | 17 | 0.37 | http://www.bing.com/bingbot.htm |
| 18 | 18 | 0.08 | 2 | 0.04 | +http://megaindex.com/crawler |
| 19 | 18 | 0.08 | 9 | 0.19 | +http://duckduckgo.com |
| 20 | 15 | 0.07 | 1 | 0.02 | +http://www.warebay.com/bot.html |
| 21 | 14 | 0.06 | 7 | 0.15 | +http://www.xovibot.net/ |
| 22 | 14 | 0.06 | 3 | 0.06 | +http://www.semrush.com/bot.html |
| 23 | 11 | 0.05 | 1 | 0.02 | http://www.opensiteexplorer.org/dotbot, ... |
| 24 | 10 | 0.05 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
| 25 | 9 | 0.04 | 1 | 0.02 | Linux [unknown version] |
| 26 | 9 | 0.04 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 27 | 8 | 0.04 | 4 | 0.09 | +http://help.coccoc.com/ |
| 28 | 8 | 0.04 | 4 | 0.09 | +http://www.meanpath.com/meanpathbot.htm... |
| 29 | 7 | 0.03 | 1 | 0.02 | crawler@mixrank.com |
| 30 | 5 | 0.02 | 5 | 0.11 | +http://www.domaintuno.com/robot |
| 31 | 5 | 0.02 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 32 | 4 | 0.02 | 1 | 0.02 | +http://www.seograph.net/bot.html |
| 33 | 3 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 34 | 3 | 0.01 | 2 | 0.04 | +info@netcraft.com |
| 35 | 3 | 0.01 | 2 | 0.04 | Windows 98 |
| 36 | 3 | 0.01 | 2 | 0.04 | +http://www.exabot.com/go/robot |
| 37 | 2 | 0.01 | 2 | 0.04 | +https://gimmeusa.com/pages/crawler |
| 38 | 2 | 0.01 | 1 | 0.02 | +https://www.mojeek.com/bot.html |
| 39 | 2 | 0.01 | 1 | 0.02 | +http://crawler.seolytics.net/ |
| 40 | 2 | 0.01 | 0 | 0.00 | +http://siteexplorer.info/ |
| 41 | 1 | 0.00 | 1 | 0.02 | Windows CE |
| 42 | 1 | 0.00 | 1 | 0.02 | Windows 95 |
| 43 | 1 | 0.00 | 1 | 0.02 | Intel Mac OS X 10.4 |
| 44 | 1 | 0.00 | 1 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 45 | 1 | 0.00 | 1 | 0.02 | Windows 3.1 |
