404. That’s an error.
The requested URL /add?source=atgs&feedurl=https%3A%2F%2Ffanera8.webnode.ru%2Frss%2Fall.xml was not found on this server. That’s all we know.
/add?source=atgs&feedurl=https%3A%2F%2Ffanera8.webnode.ru%2Frss%2Fall.xml