| Used Operating Systems |
| 1 | 24734 | 64.96 | 1843 | 46.31 | Windows NT |
| 2 | 5048 | 13.26 | 100 | 2.51 | http://www.majestic12.co.uk/bot.php?+ |
| 3 | 2491 | 6.54 | 286 | 7.19 | +http://www.google.com/bot.html |
| 4 | 2240 | 5.88 | 282 | 7.09 | +http://www.bing.com/bingbot.htm |
| 5 | 1974 | 5.18 | 1231 | 30.93 | +http://www.baidu.com/search/spider.html |
| 6 | 501 | 1.32 | 22 | 0.55 | +http://ahrefs.com/robot/ |
| 7 | 291 | 0.76 | 8 | 0.20 | +http://yandex.com/bots |
| 8 | 182 | 0.48 | 6 | 0.15 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 9 | 179 | 0.47 | 34 | 0.85 | http://help.yahoo.com/help/us/ysearch/sl... |
| 10 | 79 | 0.21 | 4 | 0.10 | +http://fulltext.sblog.cz/ |
| 11 | 45 | 0.12 | 33 | 0.83 | +http://www.linkdex.com/bots/ |
| 12 | 43 | 0.11 | 2 | 0.05 | +http://www.warebay.com/bot.html |
| 13 | 31 | 0.08 | 6 | 0.15 | +http://www.semrush.com/bot.html |
| 14 | 27 | 0.07 | 26 | 0.65 | Windows 95 |
| 15 | 26 | 0.07 | 12 | 0.30 | Windows 98 |
| 16 | 26 | 0.07 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 17 | 18 | 0.05 | 0 | 0.00 | http://filterdb.iss.net/crawler/ |
| 18 | 18 | 0.05 | 9 | 0.23 | +http://duckduckgo.com |
| 19 | 12 | 0.03 | 5 | 0.13 | +http://help.coccoc.com/ |
| 20 | 11 | 0.03 | 1 | 0.03 | Linux i586 [unknown version] |
| 21 | 11 | 0.03 | 3 | 0.08 | +http://www.exabot.com/go/robot |
| 22 | 10 | 0.03 | 1 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 23 | 8 | 0.02 | 7 | 0.18 | Windows 2000 |
| 24 | 8 | 0.02 | 8 | 0.20 | http://www.bing.com/bingbot.htm |
| 25 | 8 | 0.02 | 8 | 0.20 | MSIE 5.5; Windows NT 5.0 |
| 26 | 6 | 0.02 | 6 | 0.15 | Windows 3.1 |
| 27 | 6 | 0.02 | 6 | 0.15 | ) - BrowseX (2.0.0 Windows |
| 28 | 4 | 0.01 | 3 | 0.08 | Windows XP |
| 29 | 4 | 0.01 | 4 | 0.10 | Windows ME |
| 30 | 4 | 0.01 | 3 | 0.08 | +info@netcraft.com |
| 31 | 4 | 0.01 | 1 | 0.03 | +http://www.findxbot.com |
| 32 | 3 | 0.01 | 3 | 0.08 | Windows CE |
| 33 | 3 | 0.01 | 2 | 0.05 | http://www.opensiteexplorer.org/dotbot, ... |
| 34 | 3 | 0.01 | 1 | 0.03 | +http://www.profound.net/domainappender |
| 35 | 2 | 0.01 | 2 | 0.05 | Auto; Windows |
| 36 | 2 | 0.01 | 1 | 0.03 | Linux [unknown version] |
| 37 | 2 | 0.01 | 1 | 0.03 | +https://www.mojeek.com/bot.html |
| 38 | 2 | 0.01 | 1 | 0.03 | +http://crawler.seolytics.net/ |
| 39 | 2 | 0.01 | 1 | 0.03 | http://www.botje.com/plukkie.htm |
| 40 | 2 | 0.01 | 2 | 0.05 | MSIE 5.5; Windows NT 4.0 |
| 41 | 1 | 0.00 | 0 | 0.00 | http://desktop.google.com/ |
| 42 | 1 | 0.00 | 1 | 0.03 | +http://glutenfreepleasure.com/ |
| 43 | 1 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 44 | 1 | 0.00 | 1 | 0.03 | http://nmap.org/book/nse.html |
| 45 | 1 | 0.00 | 1 | 0.03 | +http://www.grapeshot.co.uk/crawler.php |
| 46 | 1 | 0.00 | 1 | 0.03 | +http://domainmacro.com |
| 47 | 1 | 0.00 | 1 | 0.03 | X11 |
| 48 | 1 | 0.00 | 1 | 0.03 | Linux i686 [unknown version] |
