HTTP/1.1 200 OK Server: nginx/1.18.0 (Ubuntu) Date: Thu, 18 Sep 2025 22:10:00 GMT Content-Type: text/html; charset=shift_jis Transfer-Encoding: chunked Connection: keep-alive Content-Encoding: gzip HTTP/1.1 400 Bad Request Date: Thu, 18 Sep 2025 22:10:00 GMT Content-Length: 0 Connection: close CF-RAY: 98142bc0c8bc97f6-BOM