HTTPヘッダ情報チェック
| HTTP/1.1 200 OK | |
| Server | nginx |
| Date | Mon, 20 Jan 2025 11:26:31 GMT |
| Content-Type | text/html |
| Content-Length | 79 |
| Last-Modified | Mon, 06 Jan 2025 22:25:37 GMT |
| Connection | keep-alive |
| ETag | "677c5861-4f" |
| Accept-Ranges | bytes |
| HTTP/1.1 200 OK | |
| Server | nginx |
| Date | Mon, 20 Jan 2025 11:26:31 GMT |
| Content-Type | text/html |
| Content-Length | 79 |
| Last-Modified | Mon, 06 Jan 2025 22:25:37 GMT |
| Connection | keep-alive |
| ETag | "677c5861-4f" |
| Accept-Ranges | bytes |