HTTPヘッダ情報チェック
| HTTP/1.1 404 Not Found | |
| Server | nginx/1.20.0 |
| Date | Fri, 26 Apr 2024 20:38:03 GMT |
| Content-Type | text/html |
| Content-Length | 756 |
| Connection | keep-alive |
| ETag | "1dc09d84-2f4" |
| HTTP/1.1 404 Not Found | |
| Server | nginx/1.20.0 |
| Date | Fri, 26 Apr 2024 20:38:03 GMT |
| Content-Type | text/html |
| Content-Length | 756 |
| Connection | keep-alive |
| ETag | "1dc09d84-2f4" |