404. That’s an error.

The requested URL /translate_c?depth=1&tl=ja&u=https://dic.nicovideo.jp/a/%E3%83%A9%E3%83%96%E3%83%A9%E3%82%A4%E3%83%96%EF%BC%81%E3%81%AE%E6%A5%BD%E6%9B%B2%E4%B8%80%E8%A6%A7 was not found on this server. That’s all we know.