| Used Operating Systems |
| 1 | 20037 | 63.55 | 162 | 2.71 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 4917 | 15.60 | 2549 | 42.63 | Windows NT |
| 3 | 2079 | 6.59 | 1790 | 29.93 | +http://www.baidu.com/search/spider.html |
| 4 | 1119 | 3.55 | 283 | 4.73 | +http://www.bing.com/bingbot.htm |
| 5 | 762 | 2.42 | 178 | 2.98 | +http://yandex.com/bots |
| 6 | 642 | 2.04 | 9 | 0.15 | +http://OpenLinkProfiler.org/bot |
| 7 | 464 | 1.47 | 189 | 3.16 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 8 | 304 | 0.96 | 101 | 1.69 | http://www.opensiteexplorer.org/dotbot, ... |
| 9 | 288 | 0.91 | 140 | 2.34 | +http://www.google.com/bot.html |
| 10 | 203 | 0.64 | 163 | 2.73 | Windows 95 |
| 11 | 133 | 0.42 | 36 | 0.60 | Windows 98 |
| 12 | 96 | 0.30 | 37 | 0.62 | +http://www.linkdex.com/bots/ |
| 13 | 54 | 0.17 | 42 | 0.70 | +http://ahrefs.com/robot/ |
| 14 | 50 | 0.16 | 35 | 0.59 | Windows ME |
| 15 | 48 | 0.15 | 40 | 0.67 | Windows 2000 |
| 16 | 42 | 0.13 | 38 | 0.64 | Windows CE |
| 17 | 42 | 0.13 | 35 | 0.59 | Windows 3.1 |
| 18 | 39 | 0.12 | 32 | 0.54 | MSIE 5.5; Windows NT 5.0 |
| 19 | 34 | 0.11 | 5 | 0.08 | Windows XP |
| 20 | 33 | 0.10 | 14 | 0.23 | http://help.yahoo.com/help/us/ysearch/sl... |
| 21 | 30 | 0.10 | 27 | 0.45 | Auto; Windows |
| 22 | 29 | 0.09 | 25 | 0.42 | ) - BrowseX (2.0.0 Windows |
| 23 | 28 | 0.09 | 25 | 0.42 | MSIE 5.5; Windows NT 4.0 |
| 24 | 18 | 0.06 | 1 | 0.02 | +http://advbot.org/bot.html |
| 25 | 16 | 0.05 | 13 | 0.22 | X11 |
| 26 | 8 | 0.03 | 4 | 0.07 | +http://www.meanpath.com/meanpathbot.htm... |
| 27 | 3 | 0.01 | 1 | 0.02 | PPC Mac OS X Mach-O |
| 28 | 3 | 0.01 | 2 | 0.03 | +info@netcraft.com |
| 29 | 2 | 0.01 | 1 | 0.02 | Mail.RU_Bot/Robots/2.0; +http://go.mail.... |
| 30 | 2 | 0.01 | 0 | 0.00 | Wayback Machine Live Record; +http://arc... |
| 31 | 2 | 0.01 | 1 | 0.02 | +http://duckduckgo.com |
| 32 | 1 | 0.00 | 1 | 0.02 | http://nmap.org/book/nse.html |
| 33 | 1 | 0.00 | 1 | 0.02 | +https://www.lipperhey.com/en/about/ |
