404. That’s an error.

The requested URL /translate_c?depth=1&tl=ja&u=https://dic.nicovideo.jp/a/%E6%9D%B1%E6%96%B9%E5%A1%97%E3%82%8A%E7%B5%B5%E7%A5%AD%E3%82%8A was not found on this server. That’s all we know.