| Used Operating Systems |
| 1 | 6191 | 41.22 | 137 | 3.42 | http://www.majestic12.co.uk/bot.php?+ |
| 2 | 5299 | 35.28 | 2024 | 50.46 | Windows NT |
| 3 | 1105 | 7.36 | 959 | 23.91 | +http://www.baidu.com/search/spider.html |
| 4 | 1099 | 7.32 | 293 | 7.30 | +http://ahrefs.com/robot/ |
| 5 | 185 | 1.23 | 137 | 3.42 | Windows 95 |
| 6 | 176 | 1.17 | 70 | 1.75 | +http://yandex.com/bots |
| 7 | 170 | 1.13 | 65 | 1.62 | +http://www.bing.com/bingbot.htm |
| 8 | 154 | 1.03 | 27 | 0.67 | +http://www.google.com/bot.html |
| 9 | 124 | 0.83 | 21 | 0.52 | Windows 98 |
| 10 | 58 | 0.39 | 39 | 0.97 | Auto; Windows |
| 11 | 51 | 0.34 | 36 | 0.90 | ) - BrowseX (2.0.0 Windows |
| 12 | 48 | 0.32 | 4 | 0.10 | Windows XP |
| 13 | 47 | 0.31 | 6 | 0.15 | http://help.yahoo.com/help/us/ysearch/sl... |
| 14 | 44 | 0.29 | 15 | 0.37 | +http://www.linkdex.com/bots/ |
| 15 | 34 | 0.23 | 30 | 0.75 | Windows CE |
| 16 | 31 | 0.21 | 24 | 0.60 | MSIE 5.5; Windows NT 5.0 |
| 17 | 26 | 0.17 | 12 | 0.30 | Linux i686 [unknown version] |
| 18 | 25 | 0.17 | 18 | 0.45 | Windows 3.1 |
| 19 | 22 | 0.15 | 18 | 0.45 | Windows 2000 |
| 20 | 21 | 0.14 | 16 | 0.40 | Windows ME |
| 21 | 21 | 0.14 | 17 | 0.42 | MSIE 5.5; Windows NT 4.0 |
| 22 | 16 | 0.11 | 8 | 0.20 | +http://www.meanpath.com/meanpathbot.htm... |
| 23 | 13 | 0.09 | 11 | 0.27 | +https://www.megaindex.ru/?tab=linkAnaly... |
| 24 | 10 | 0.07 | 4 | 0.10 | Win32 |
| 25 | 9 | 0.06 | 1 | 0.02 | +http://advbot.org/bot.html |
| 26 | 6 | 0.04 | 3 | 0.07 | Mail.RU_Bot/2.0; +http://go.mail.ru/help... |
| 27 | 6 | 0.04 | 3 | 0.07 | http://www.opensiteexplorer.org/dotbot, ... |
| 28 | 6 | 0.04 | 2 | 0.05 | +https://www.lipperhey.com/en/about/ |
| 29 | 6 | 0.04 | 3 | 0.07 | +http://gimme60.com |
| 30 | 6 | 0.04 | 2 | 0.05 | X11 |
| 31 | 4 | 0.03 | 1 | 0.02 | Android 2.3.5 |
| 32 | 4 | 0.03 | 4 | 0.10 | +http://megaindex.com/crawler |
| 33 | 1 | 0.01 | 1 | 0.02 | +info@netcraft.com |
