| Used Operating Systems |
| 1 | 27372 | 32.13 | 273 | 1.22 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 21666 | 25.43 | 15915 | 71.14 | +http://ahrefs.com/robot/ |
| 3 | 18045 | 21.18 | 2759 | 12.33 | +http://www.google.com/bot.html |
| 4 | 7373 | 8.65 | 1 | 0.00 | +http://megaindex.com/crawler |
| 5 | 2960 | 3.47 | 230 | 1.03 | +http://www.bing.com/bingbot.htm |
| 6 | 2238 | 2.63 | 2097 | 9.37 | +http://www.baidu.com/search/spider.html |
| 7 | 1596 | 1.87 | 625 | 2.79 | Windows NT |
| 8 | 1482 | 1.74 | 161 | 0.72 | +http://yandex.com/bots |
| 9 | 1352 | 1.59 | 3 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 10 | 330 | 0.39 | 69 | 0.31 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 250 | 0.29 | 52 | 0.23 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 98 | 0.12 | 21 | 0.09 | +http://www.semrush.com/bot.html |
| 13 | 93 | 0.11 | 16 | 0.07 | +spider@seoscanners.net |
| 14 | 69 | 0.08 | 17 | 0.08 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 47 | 0.06 | 29 | 0.13 | Linux i686 [unknown version] |
| 16 | 40 | 0.05 | 26 | 0.12 | Linux [unknown version] |
| 17 | 36 | 0.04 | 17 | 0.08 | Windows 95 |
| 18 | 22 | 0.03 | 7 | 0.03 | Windows XP |
| 19 | 20 | 0.02 | 8 | 0.04 | ) - BrowseX (2.0.0 Windows |
| 20 | 18 | 0.02 | 5 | 0.02 | +http://www.exabot.com/go/robot |
| 21 | 13 | 0.02 | 6 | 0.03 | Windows 98 |
| 22 | 12 | 0.01 | 1 | 0.00 | +https://www.dataprovider.com/ |
| 23 | 8 | 0.01 | 4 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 24 | 8 | 0.01 | 8 | 0.04 | +http://www.xovibot.net/ |
| 25 | 7 | 0.01 | 0 | 0.00 | J2ME/MIDP |
| 26 | 5 | 0.01 | 4 | 0.02 | Auto; Windows |
| 27 | 5 | 0.01 | 1 | 0.00 | +http://siteexplorer.info/ |
| 28 | 4 | 0.00 | 0 | 0.00 | Android |
| 29 | 4 | 0.00 | 2 | 0.01 | +http://www.linkdex.com/bots/ |
| 30 | 4 | 0.00 | 2 | 0.01 | +info@netcraft.com |
| 31 | 3 | 0.00 | 3 | 0.01 | Windows ME |
| 32 | 3 | 0.00 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 33 | 3 | 0.00 | 0 | 0.00 | X11 |
| 34 | 3 | 0.00 | 3 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 35 | 2 | 0.00 | 2 | 0.01 | Windows CE |
| 36 | 2 | 0.00 | 2 | 0.01 | http://nmap.org/book/nse.html |
| 37 | 1 | 0.00 | 1 | 0.00 | Windows 2000 |
| 38 | 1 | 0.00 | 0 | 0.00 | +http://www.proximic.com/info/spider.php |
| 39 | 1 | 0.00 | 0 | 0.00 | +http://filterdb.iss.net/crawler/ |
| 40 | 1 | 0.00 | 1 | 0.00 | Windows 3.1 |
