404. That’s an error.
The requested URL /_/+1/confirm?hl=ja&url=https://anime-douga.work/%E3%81%A8%E3%81%82%E3%82%8B%E7%A7%91%E5%AD%A6%E3%81%AE%E8%B6%85%E9%9B%BB%E7%A3%81%E7%A0%B2t%E3%80%90%E5%8B%95%E7%94%BB%E3%80%91%E3%80%8C3%E8%A9%B1%E3%80%8D%E3%83%90%E3%83%AB%E3%83%BC%E3%83%B3%E3%83%8F/
was not found on this server. That’s all we know.