HTTPヘッダ情報チェック
| HTTP/1.1 200 OK | |
| Server | nginx-reuseport/1.21.1 |
| Date | Wed, 24 Apr 2024 03:22:08 GMT |
| Content-Type | text/html |
| Content-Length | 19715 |
| Connection | keep-alive |
| Keep-Alive | timeout=30 |
| Vary | Accept-Encoding |
| Last-Modified | Tue, 07 Nov 2023 20:25:58 GMT |
| ETag | "4d03-60995c74d5125" |
| Accept-Ranges | bytes |