| Used Operating Systems |
| 1 | 33066 | 35.17 | 483 | 2.59 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 20769 | 22.09 | 13330 | 71.41 | +http://ahrefs.com/robot/ |
| 3 | 7947 | 8.45 | 77 | 0.41 | http://mj12bot.com/ |
| 4 | 5543 | 5.90 | 686 | 3.68 | Windows NT |
| 5 | 4431 | 4.71 | 104 | 0.56 | +http://www.semrush.com/bot.html |
| 6 | 4393 | 4.67 | 1219 | 6.53 | +http://www.bing.com/bingbot.htm |
| 7 | 3641 | 3.87 | 446 | 2.39 | +http://yandex.com/bots |
| 8 | 3395 | 3.61 | 1490 | 7.98 | +http://www.google.com/bot.html |
| 9 | 2184 | 2.32 | 5 | 0.03 | +http://www.baidu.com/search/spider.html |
| 10 | 1784 | 1.90 | 2 | 0.01 | crawler@goodzer.com |
| 11 | 1633 | 1.74 | 2 | 0.01 | +http://megaindex.com/crawler |
| 12 | 942 | 1.00 | 17 | 0.09 | +http://www.seokicks.de/robot.html |
| 13 | 855 | 0.91 | 14 | 0.08 | +http://OpenLinkProfiler.org/bot |
| 14 | 711 | 0.76 | 134 | 0.72 | +http://www.linkdex.com/bots/ |
| 15 | 489 | 0.52 | 241 | 1.29 | http://help.yahoo.com/help/us/ysearch/sl... |
| 16 | 440 | 0.47 | 3 | 0.02 | +http://webmeup-crawler.com/ |
| 17 | 410 | 0.44 | 1 | 0.01 | +http://www.linkpad.ru |
| 18 | 286 | 0.30 | 49 | 0.26 | +http://napoveda.seznam.cz/en/seznambot-... |
| 19 | 199 | 0.21 | 135 | 0.72 | +http://www.uptime.com/uptimebot |
| 20 | 172 | 0.18 | 8 | 0.04 | +https://www.aihitdata.com/about |
| 21 | 162 | 0.17 | 18 | 0.10 | +http://www.profound.net/domainappender |
| 22 | 120 | 0.13 | 50 | 0.27 | +http://duckduckgo.com |
| 23 | 60 | 0.06 | 18 | 0.10 | Windows XP |
| 24 | 54 | 0.06 | 18 | 0.10 | Windows 95 |
| 25 | 49 | 0.05 | 27 | 0.14 | +http://www.exabot.com/go/robot |
| 26 | 45 | 0.05 | 5 | 0.03 | +https://github.com/AliasIO/Wappalyzer |
| 27 | 36 | 0.04 | 10 | 0.05 | http://www.opensiteexplorer.org/dotbot, ... |
| 28 | 34 | 0.04 | 7 | 0.04 | +https://www.dataprovider.com/ |
| 29 | 28 | 0.03 | 4 | 0.02 | http://filterdb.iss.net/crawler/ |
| 30 | 26 | 0.03 | 5 | 0.03 | Windows 98 |
| 31 | 22 | 0.02 | 20 | 0.11 | +info@netcraft.com |
| 32 | 13 | 0.01 | 5 | 0.03 | Windows ME |
| 33 | 11 | 0.01 | 1 | 0.01 | +http://www.warebay.com/bot.html |
| 34 | 10 | 0.01 | 2 | 0.01 | MSIE 5.5; Windows NT 5.0 |
| 35 | 8 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 36 | 7 | 0.01 | 4 | 0.02 | +http://www.grapeshot.co.uk/crawler.php |
| 37 | 6 | 0.01 | 6 | 0.03 | Linux i686 [unknown version] |
| 38 | 5 | 0.01 | 5 | 0.03 | +http://besome1.info/securityresearchbot... |
| 39 | 5 | 0.01 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 40 | 4 | 0.00 | 2 | 0.01 | Windows CE |
| 41 | 4 | 0.00 | 0 | 0.00 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 42 | 3 | 0.00 | 1 | 0.01 | Auto; Windows |
| 43 | 3 | 0.00 | 1 | 0.01 | Windows 3.1 |
| 44 | 3 | 0.00 | 1 | 0.01 | ) - BrowseX (2.0.0 Windows |
| 45 | 3 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 46 | 2 | 0.00 | 0 | 0.00 | https://nmap.org/book/nse.html |
| 47 | 2 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 48 | 2 | 0.00 | 1 | 0.01 | +https://www.mojeek.com/bot.html |
| 49 | 2 | 0.00 | 2 | 0.01 | Linux [unknown version] |
| 50 | 2 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 51 | 2 | 0.00 | 1 | 0.01 | X11 |
| 52 | 2 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 53 | 1 | 0.00 | 1 | 0.01 | crawler@mixrank.com |
| 54 | 1 | 0.00 | 1 | 0.01 | Macintosh PPC |
| 55 | 1 | 0.00 | 1 | 0.01 | Macintosh |
