HTTPヘッダ情報チェック
| HTTP/1.1 200 OK | |
| Connection | Keep-Alive |
| Keep-Alive | timeout=5, max=100 |
| x-powered-by | PHP/8.1.31 |
| content-type | text/html; charset=UTF-8 |
| content-length | 0 |
| date | Mon, 20 Jan 2025 12:00:20 GMT |
| server | LiteSpeed |
| platform | hostinger |
| strict-transport-security | max-age=31536000; includeSubDomains; preload |
| x-xss-protection | 1; mode=block |
| x-content-type-options | nosniff |