| Used Operating Systems by Visits |
| 1 | 6426 | 17.39 | 4052 | 48.50 | +http://www.baidu.com/search/spider.html |
| 2 | 2336 | 6.32 | 1639 | 19.62 | +http://ahrefs.com/robot/ |
| 3 | 2709 | 7.33 | 933 | 11.17 | Windows NT |
| 4 | 1299 | 3.52 | 568 | 6.80 | +http://www.google.com/bot.html |
| 5 | 1925 | 5.21 | 308 | 3.69 | +http://www.bing.com/bingbot.htm |
| 6 | 17699 | 47.89 | 194 | 2.32 | http://www.majestic12.co.uk/bot.php?+ |
| 7 | 346 | 0.94 | 155 | 1.86 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 329 | 0.89 | 69 | 0.83 | +http://yandex.com/bots |
| 9 | 444 | 1.20 | 68 | 0.81 | +http://www.semrush.com/bot.html |
| 10 | 234 | 0.63 | 65 | 0.78 | +http://www.linkdex.com/bots/ |
| 11 | 401 | 1.09 | 64 | 0.77 | http://www.opensiteexplorer.org/dotbot, ... |
| 12 | 160 | 0.43 | 58 | 0.69 | http://help.yahoo.com/help/us/ysearch/sl... |
| 13 | 28 | 0.08 | 28 | 0.34 | +http://www.xovibot.net/ |
| 14 | 42 | 0.11 | 22 | 0.26 | Windows 95 |
| 15 | 2219 | 6.00 | 21 | 0.25 | Windows XP |
| 16 | 46 | 0.12 | 21 | 0.25 | +http://fulltext.sblog.cz/ |
| 17 | 32 | 0.09 | 13 | 0.16 | +http://www.exabot.com/go/robot |
| 18 | 22 | 0.06 | 9 | 0.11 | Windows 98 |
| 19 | 13 | 0.04 | 7 | 0.08 | Auto; Windows |
| 20 | 18 | 0.05 | 6 | 0.07 | Windows ME |
| 21 | 6 | 0.02 | 6 | 0.07 | Windows 3.1 |
| 22 | 6 | 0.02 | 6 | 0.07 | ) - BrowseX (2.0.0 Windows |
| 23 | 15 | 0.04 | 4 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 24 | 22 | 0.06 | 4 | 0.05 | Linux i686 [unknown version] |
| 25 | 8 | 0.02 | 4 | 0.05 | +http://www.meanpath.com/meanpathbot.htm... |
| 26 | 8 | 0.02 | 4 | 0.05 | +http://duckduckgo.com |
| 27 | 8 | 0.02 | 3 | 0.04 | Windows 2000 |
| 28 | 51 | 0.14 | 3 | 0.04 | +http://OpenLinkProfiler.org/bot |
| 29 | 6 | 0.02 | 3 | 0.04 | MSIE 5.5; Windows NT 4.0 |
| 30 | 3 | 0.01 | 2 | 0.02 | +http://sur.ly/bot.html |
| 31 | 3 | 0.01 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 32 | 19 | 0.05 | 2 | 0.02 | Linux [unknown version] |
| 33 | 10 | 0.03 | 1 | 0.01 | crawler@mixrank.com |
| 34 | 3 | 0.01 | 1 | 0.01 | Windows CE |
| 35 | 5 | 0.01 | 1 | 0.01 | Android |
| 36 | 1 | 0.00 | 1 | 0.01 | +http://www.privacyaware.org |
| 37 | 1 | 0.00 | 1 | 0.01 | +http://www.domaintuno.com/robot |
| 38 | 2 | 0.01 | 1 | 0.01 | http://www.botje.com/plukkie.htm |
| 39 | 2 | 0.01 | 1 | 0.01 | +info@netcraft.com |
| 40 | 13 | 0.04 | 1 | 0.01 | +https://www.lipperhey.com/en/about/ |
| 41 | 18 | 0.05 | 1 | 0.01 | +http://webmeup-crawler.com/ |
| 42 | 1 | 0.00 | 1 | 0.01 | +http://www.uptime.com/uptimebot |
| 43 | 5 | 0.01 | 1 | 0.01 | MAUI Runtime |
| 44 | 2 | 0.01 | 0 | 0.00 | +http://www.domainoptima.com/robot |
| 45 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 46 | 4 | 0.01 | 0 | 0.00 | MSIE 5.5; Windows NT 5.1 |
| 47 | 2 | 0.01 | 0 | 0.00 | X11 |
| 48 | 1 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 49 | 1 | 0.00 | 0 | 0.00 | Intel Mac OS X 10.6 |
