| Used Operating Systems |
| 1 | 39807 | 30.32 | 24558 | 43.16 | +http://www.baidu.com/search/spider.html |
| 2 | 38834 | 29.58 | 27029 | 47.50 | +http://ahrefs.com/robot/ |
| 3 | 20364 | 15.51 | 275 | 0.48 | http://www.majestic12.co.uk/bot.php?+ |
| 4 | 11795 | 8.98 | 391 | 0.69 | +http://yandex.com/bots |
| 5 | 10867 | 8.28 | 2129 | 3.74 | Windows NT |
| 6 | 2498 | 1.90 | 450 | 0.79 | http://www.opensiteexplorer.org/dotbot, ... |
| 7 | 2359 | 1.80 | 978 | 1.72 | +http://www.google.com/bot.html |
| 8 | 2040 | 1.55 | 3 | 0.01 | +http://OpenLinkProfiler.org/bot |
| 9 | 1010 | 0.77 | 310 | 0.54 | +http://www.bing.com/bingbot.htm |
| 10 | 324 | 0.25 | 46 | 0.08 | +http://www.semrush.com/bot.html |
| 11 | 317 | 0.24 | 81 | 0.14 | +http://www.linkdex.com/bots/ |
| 12 | 275 | 0.21 | 190 | 0.33 | Windows 95 |
| 13 | 166 | 0.13 | 73 | 0.13 | Windows 98 |
| 14 | 73 | 0.06 | 43 | 0.08 | +http://www.xovibot.net/ |
| 15 | 53 | 0.04 | 39 | 0.07 | MSIE 5.5; Windows NT 4.0 |
| 16 | 51 | 0.04 | 20 | 0.04 | http://help.yahoo.com/help/us/ysearch/sl... |
| 17 | 38 | 0.03 | 9 | 0.02 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 18 | 37 | 0.03 | 32 | 0.06 | Windows ME |
| 19 | 37 | 0.03 | 37 | 0.07 | ) - BrowseX (2.0.0 Windows |
| 20 | 36 | 0.03 | 36 | 0.06 | Auto; Windows |
| 21 | 36 | 0.03 | 12 | 0.02 | Windows XP |
| 22 | 35 | 0.03 | 30 | 0.05 | Windows CE |
| 23 | 35 | 0.03 | 32 | 0.06 | Windows 3.1 |
| 24 | 31 | 0.02 | 25 | 0.04 | Windows 2000 |
| 25 | 30 | 0.02 | 29 | 0.05 | MSIE 5.5; Windows NT 5.0 |
| 26 | 17 | 0.01 | 16 | 0.03 | +info@netcraft.com |
| 27 | 16 | 0.01 | 4 | 0.01 | +http://www.seokicks.de/robot.html |
| 28 | 16 | 0.01 | 1 | 0.00 | +https://teeraid.com/bot/ |
| 29 | 12 | 0.01 | 2 | 0.00 | Macintosh PPC |
| 30 | 12 | 0.01 | 1 | 0.00 | +https://www.dataprovider.com/ |
| 31 | 12 | 0.01 | 4 | 0.01 | +http://www.profound.net/domainappender |
| 32 | 11 | 0.01 | 4 | 0.01 | +http://www.exabot.com/go/robot |
| 33 | 10 | 0.01 | 7 | 0.01 | +http://www.uptime.com/uptimebot |
| 34 | 10 | 0.01 | 2 | 0.00 | PPC Mac OS X 10.5 |
| 35 | 7 | 0.01 | 0 | 0.00 | +http://webmeup-crawler.com/ |
| 36 | 2 | 0.00 | 0 | 0.00 | Windows 92 |
| 37 | 2 | 0.00 | 1 | 0.00 | +http://domainsigma.com/robot |
| 38 | 2 | 0.00 | 0 | 0.00 | +http://siteexplorer.info/ |
| 39 | 1 | 0.00 | 1 | 0.00 | http://nmap.org/book/nse.html |
| 40 | 1 | 0.00 | 0 | 0.00 | +http://www.domainoptima.com/robot |
| 41 | 1 | 0.00 | 1 | 0.00 | Linux i686 [unknown version] |
