| Used Operating Systems |
| 1 | 30529 | 31.31 | 245 | 1.31 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 22011 | 22.57 | 2160 | 11.51 | Windows NT |
| 3 | 11372 | 11.66 | 7769 | 41.40 | +http://ahrefs.com/robot/ |
| 4 | 9818 | 10.07 | 3 | 0.02 | +http://megaindex.com/crawler |
| 5 | 8399 | 8.61 | 5867 | 31.27 | +http://www.baidu.com/search/spider.html |
| 6 | 5065 | 5.19 | 272 | 1.45 | +http://www.bing.com/bingbot.htm |
| 7 | 3007 | 3.08 | 646 | 3.44 | +http://yandex.com/bots |
| 8 | 3004 | 3.08 | 3 | 0.02 | +http://OpenLinkProfiler.org/bot |
| 9 | 1759 | 1.80 | 697 | 3.71 | +http://www.google.com/bot.html |
| 10 | 625 | 0.64 | 278 | 1.48 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 11 | 444 | 0.46 | 105 | 0.56 | +http://www.exabot.com/go/robot |
| 12 | 270 | 0.28 | 170 | 0.91 | Windows 95 |
| 13 | 250 | 0.26 | 45 | 0.24 | +http://www.linkdex.com/bots/ |
| 14 | 183 | 0.19 | 134 | 0.71 | +http://www.xovibot.net/ |
| 15 | 177 | 0.18 | 34 | 0.18 | Windows 98 |
| 16 | 100 | 0.10 | 34 | 0.18 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 52 | 0.05 | 10 | 0.05 | Windows XP |
| 18 | 44 | 0.05 | 39 | 0.21 | MSIE 5.5; Windows NT 4.0 |
| 19 | 43 | 0.04 | 29 | 0.15 | MSIE 5.5; Windows NT 5.0 |
| 20 | 42 | 0.04 | 31 | 0.17 | Auto; Windows |
| 21 | 41 | 0.04 | 6 | 0.03 | +http://sur.ly/bot.html |
| 22 | 39 | 0.04 | 28 | 0.15 | Windows 3.1 |
| 23 | 37 | 0.04 | 26 | 0.14 | Windows ME |
| 24 | 34 | 0.03 | 34 | 0.18 | +http://www.uptime.com/uptimebot |
| 25 | 32 | 0.03 | 29 | 0.15 | ) - BrowseX (2.0.0 Windows |
| 26 | 28 | 0.03 | 24 | 0.13 | Windows CE |
| 27 | 27 | 0.03 | 25 | 0.13 | Windows 2000 |
| 28 | 14 | 0.01 | 2 | 0.01 | http://filterdb.iss.net/crawler/ |
| 29 | 14 | 0.01 | 1 | 0.01 | +https://www.dataprovider.com/ |
| 30 | 11 | 0.01 | 10 | 0.05 | +info@netcraft.com |
| 31 | 10 | 0.01 | 2 | 0.01 | +http://siteexplorer.info/ |
| 32 | 6 | 0.01 | 3 | 0.02 | +http://duckduckgo.com |
| 33 | 5 | 0.01 | 1 | 0.01 | https://nmap.org/book/nse.html |
| 34 | 5 | 0.01 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 35 | 4 | 0.00 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 36 | 3 | 0.00 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 37 | 3 | 0.00 | 0 | 0.00 | X11 |
| 38 | 2 | 0.00 | 1 | 0.01 | http://www.botje.com/plukkie.htm |
| 39 | 1 | 0.00 | 1 | 0.01 | +https://gimmeusa.com/crawler.html |
| 40 | 1 | 0.00 | 1 | 0.01 | http://nmap.org/book/nse.html |
| 41 | 1 | 0.00 | 0 | 0.00 | Android 2.3.5 |
| 42 | 1 | 0.00 | 0 | 0.00 | Linux i686 [unknown version] |
