| Used Operating Systems |
| 1 | 34926 | 42.28 | 312 | 2.30 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 15815 | 19.14 | 510 | 3.76 | +http://yandex.com/bots |
| 3 | 9781 | 11.84 | 5652 | 41.67 | +http://ahrefs.com/robot/ |
| 4 | 6717 | 8.13 | 4456 | 32.85 | +http://www.baidu.com/search/spider.html |
| 5 | 6701 | 8.11 | 51 | 0.38 | http://mj12bot.com/ |
| 6 | 3595 | 4.35 | 428 | 3.16 | Windows NT |
| 7 | 1663 | 2.01 | 526 | 3.88 | +http://www.google.com/bot.html |
| 8 | 849 | 1.03 | 259 | 1.91 | +http://www.bing.com/bingbot.htm |
| 9 | 497 | 0.60 | 322 | 2.37 | +http://www.linkdex.com/bots/ |
| 10 | 389 | 0.47 | 162 | 1.19 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 206 | 0.25 | 41 | 0.30 | +http://www.semrush.com/bot.html |
| 12 | 192 | 0.23 | 45 | 0.33 | http://www.opensiteexplorer.org/dotbot, ... |
| 13 | 158 | 0.19 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 14 | 111 | 0.13 | 104 | 0.77 | Windows 2007 |
| 15 | 107 | 0.13 | 92 | 0.68 | Windows 2003 |
| 16 | 88 | 0.11 | 80 | 0.59 | Windows 2006 |
| 17 | 88 | 0.11 | 82 | 0.60 | Windows 9 |
| 18 | 82 | 0.10 | 71 | 0.52 | Windows 2008 |
| 19 | 79 | 0.10 | 73 | 0.54 | Windows 2005 |
| 20 | 78 | 0.09 | 74 | 0.55 | Windows 2004 |
| 21 | 75 | 0.09 | 69 | 0.51 | Windows 2002 |
| 22 | 65 | 0.08 | 7 | 0.05 | +http://www.seokicks.de/robot.html |
| 23 | 46 | 0.06 | 12 | 0.09 | +http://help.coccoc.com/searchengine |
| 24 | 44 | 0.05 | 16 | 0.12 | +http://napoveda.seznam.cz/en/seznambot-... |
| 25 | 41 | 0.05 | 32 | 0.24 | +http://www.uptime.com/uptimebot |
| 26 | 38 | 0.05 | 17 | 0.13 | +http://duckduckgo.com |
| 27 | 30 | 0.04 | 12 | 0.09 | http://help.yahoo.com/help/us/ysearch/sl... |
| 28 | 20 | 0.02 | 2 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 29 | 20 | 0.02 | 2 | 0.01 | +https://www.aihitdata.com/about |
| 30 | 18 | 0.02 | 2 | 0.01 | crawler@mixrank.com |
| 31 | 10 | 0.01 | 1 | 0.01 | +http://megaindex.com/crawler |
| 32 | 10 | 0.01 | 2 | 0.01 | +http://www.profound.net/domainappender |
| 33 | 10 | 0.01 | 5 | 0.04 | +http://www.exabot.com/go/robot |
| 34 | 9 | 0.01 | 7 | 0.05 | Windows 98 |
| 35 | 8 | 0.01 | 4 | 0.03 | +http://webmeup-crawler.com/ |
| 36 | 7 | 0.01 | 7 | 0.05 | Windows 95 |
| 37 | 5 | 0.01 | 5 | 0.04 | Auto; Windows |
| 38 | 5 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 39 | 5 | 0.01 | 4 | 0.03 | Windows XP |
| 40 | 4 | 0.00 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 41 | 3 | 0.00 | 3 | 0.02 | +http://pmoz.info/doc/botinfo.htm |
| 42 | 3 | 0.00 | 3 | 0.02 | Windows 3.1 |
| 43 | 3 | 0.00 | 2 | 0.01 | +info@netcraft.com |
| 44 | 2 | 0.00 | 2 | 0.01 | +http://sur.ly/bot.html |
| 45 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 46 | 2 | 0.00 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 47 | 2 | 0.00 | 2 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 48 | 1 | 0.00 | 1 | 0.01 | J2ME/MIDP |
| 49 | 1 | 0.00 | 0 | 0.00 | X11 |
| 50 | 1 | 0.00 | 1 | 0.01 | Android 2.3.5 |
