| Used Operating Systems |
| 1 | 15856 | 42.83 | 8974 | 75.88 | +http://ahrefs.com/robot/ |
| 2 | 6589 | 17.80 | 3 | 0.03 | +http://megaindex.com/crawler |
| 3 | 3825 | 10.33 | 4 | 0.03 | +http://OpenLinkProfiler.org/bot |
| 4 | 2657 | 7.18 | 48 | 0.41 | http://www.majestic12.co.uk/bot.php?+ |
| 5 | 2101 | 5.67 | 45 | 0.38 | http://mj12bot.com/ |
| 6 | 1924 | 5.20 | 1695 | 14.33 | +http://www.baidu.com/search/spider.html |
| 7 | 1422 | 3.84 | 256 | 2.16 | Windows NT |
| 8 | 793 | 2.14 | 274 | 2.32 | +http://www.bing.com/bingbot.htm |
| 9 | 725 | 1.96 | 195 | 1.65 | +http://www.google.com/bot.html |
| 10 | 475 | 1.28 | 80 | 0.68 | +http://yandex.com/bots |
| 11 | 226 | 0.61 | 90 | 0.76 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 12 | 190 | 0.51 | 118 | 1.00 | +http://www.linkdex.com/bots/ |
| 13 | 138 | 0.37 | 1 | 0.01 | +http://www.seokicks.de/robot.html |
| 14 | 34 | 0.09 | 8 | 0.07 | http://help.yahoo.com/help/us/ysearch/sl... |
| 15 | 12 | 0.03 | 0 | 0.00 | +http://www.semrush.com/bot.html |
| 16 | 8 | 0.02 | 7 | 0.06 | +info@netcraft.com |
| 17 | 8 | 0.02 | 1 | 0.01 | Windows 98 |
| 18 | 7 | 0.02 | 7 | 0.06 | Windows 95 |
| 19 | 6 | 0.02 | 2 | 0.02 | Windows CE |
| 20 | 6 | 0.02 | 3 | 0.03 | +http://www.exabot.com/go/robot |
| 21 | 6 | 0.02 | 3 | 0.03 | +http://duckduckgo.com |
| 22 | 3 | 0.01 | 3 | 0.03 | Windows XP |
| 23 | 2 | 0.01 | 2 | 0.02 | http://nmap.org/book/nse.html |
| 24 | 2 | 0.01 | 2 | 0.02 | Windows ME |
| 25 | 2 | 0.01 | 2 | 0.02 | Syllable |
| 26 | 2 | 0.01 | 0 | 0.00 | Intel Mac OS X 10.6 |
| 27 | 1 | 0.00 | 0 | 0.00 | .NET CLR 2.0.50727 |
| 28 | 1 | 0.00 | 1 | 0.01 | Auto; Windows |
| 29 | 1 | 0.00 | 1 | 0.01 | MSIE 5.5; Windows NT 4.0 |
| 30 | 1 | 0.00 | 0 | 0.00 | WinHttp.WinHttpRequest.5 |
| 31 | 1 | 0.00 | 1 | 0.01 | +http://www.uptime.com/uptimebot |
