显示HTTP状态码和HEAD信息↓
HTTP/1.1 200 OK
Server: nginx
Content-Type: text/html; charset=UTF-8
Connection: keep-alive
Vary: Accept-Encoding
Cache-Control: no-store, max-age=0, no-cache
Date: Fri, 28 Jun 2024 02:51:34 GMT
Strict-Transport-Security: max-age=31536000