| Used Operating Systems |
| 1 | 17715 | 24.58 | 155 | 1.23 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 14944 | 20.74 | 45 | 0.36 | +http://www.warebay.com/bot.html |
| 3 | 10222 | 14.19 | 5292 | 42.13 | +http://ahrefs.com/robot/ |
| 4 | 7087 | 9.83 | 1505 | 11.98 | Windows NT |
| 5 | 6545 | 9.08 | 2 | 0.02 | +http://megaindex.com/crawler |
| 6 | 6072 | 8.43 | 4082 | 32.49 | +http://www.baidu.com/search/spider.html |
| 7 | 2001 | 2.78 | 2 | 0.02 | http://crawler.007ac9.net/ |
| 8 | 1834 | 2.55 | 298 | 2.37 | +http://www.bing.com/bingbot.htm |
| 9 | 1099 | 1.53 | 535 | 4.26 | +http://www.google.com/bot.html |
| 10 | 1035 | 1.44 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 11 | 954 | 1.32 | 6 | 0.05 | +http://webmeup-crawler.com/ |
| 12 | 781 | 1.08 | 135 | 1.07 | +http://yandex.com/bots |
| 13 | 757 | 1.05 | 186 | 1.48 | +http://www.linkdex.com/bots/ |
| 14 | 269 | 0.37 | 70 | 0.56 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 15 | 250 | 0.35 | 1 | 0.01 | Linux i686 [unknown version] |
| 16 | 108 | 0.15 | 85 | 0.68 | +http://www.xovibot.net/ |
| 17 | 79 | 0.11 | 24 | 0.19 | http://help.yahoo.com/help/us/ysearch/sl... |
| 18 | 55 | 0.08 | 46 | 0.37 | +http://www.uptime.com/uptimebot |
| 19 | 29 | 0.04 | 7 | 0.06 | Windows 3.1 |
| 20 | 25 | 0.03 | 15 | 0.12 | Windows 95 |
| 21 | 23 | 0.03 | 10 | 0.08 | Windows 98 |
| 22 | 22 | 0.03 | 6 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 23 | 20 | 0.03 | 9 | 0.07 | +http://www.exabot.com/go/robot |
| 24 | 18 | 0.02 | 1 | 0.01 | +http://sur.ly/bot.html |
| 25 | 14 | 0.02 | 1 | 0.01 | +http://filterdb.iss.net/crawler/ |
| 26 | 13 | 0.02 | 1 | 0.01 | +http://www.linkpad.ru |
| 27 | 13 | 0.02 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 28 | 12 | 0.02 | 0 | 0.00 | +http://fulltext.sblog.cz/ |
| 29 | 10 | 0.01 | 6 | 0.05 | X11 |
| 30 | 9 | 0.01 | 2 | 0.02 | MSIE 5.5; Windows NT 5.0 |
| 31 | 9 | 0.01 | 8 | 0.06 | +info@netcraft.com |
| 32 | 6 | 0.01 | 6 | 0.05 | actually this is http://ismyblogworking.... |
| 33 | 5 | 0.01 | 1 | 0.01 | +http://www.privacyaware.org |
| 34 | 5 | 0.01 | 3 | 0.02 | Windows XP |
| 35 | 4 | 0.01 | 4 | 0.03 | Windows 2000 |
| 36 | 3 | 0.00 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 37 | 3 | 0.00 | 1 | 0.01 | +http://prlog.ru/ |
| 38 | 2 | 0.00 | 2 | 0.02 | Windows CE |
| 39 | 2 | 0.00 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 40 | 2 | 0.00 | 2 | 0.02 | ) - BrowseX (2.0.0 Windows |
| 41 | 2 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 42 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 43 | 1 | 0.00 | 1 | 0.01 | Android 2.3.5 |
