404. That’s an error.
The requested URL /add?feedurl=http://mfweiyoufeng.no17.35nic.com/cn/rss/rss_menu_53.xml was not found on this server. That’s all we know.
/add?feedurl=http://mfweiyoufeng.no17.35nic.com/cn/rss/rss_menu_53.xml