404. That’s an error.
The requested URL /_/+1/confirm?hl=en&url=http%3A%2F%2F%20http://hnsoxford2016.org/otherservice/other_life/%E3%81%8D%E3%82%82%E3%81%AE%E3%81%99%E3%81%9F%E3%81%84%E3%82%8A%E3%81%99%E3%81%A8%E3%81%BF%E3%81%88%E3%81%93.html
was not found on this server. That’s all we know.