HTTP 状态检测
#1 HTTP 301 · 2 ms · http://ip438.com
↓ 跳转到 http://www.ip438.com/
Server: nginx
Date: Tue, 22 Sep 2026 12:32:32 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: http://www.ip438.com/
#2 HTTP 301 · 2 ms · http://www.ip438.com/
↓ 跳转到 https://www.ip438.com/
Server: nginx
Date: Tue, 22 Sep 2026 12:32:32 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
Location: https://www.ip438.com/
#3 HTTP 200 · 24 ms · https://www.ip438.com/
Date: Tue, 22 Sep 2026 12:32:32 GMT
Content-Type: text/html; charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Server: nginx
Set-Cookie: PHPSESSID=7hck2hchplogjj39lcn1iiup13; expires=Fri, 25-Sep-2026 12:32:32 GMT; Max-Age=259200; path=/; domain=.ip438.com
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate
Pragma: no-cache
说明
检测从本站服务器发起，最多跟踪 5 次跳转，每一跳都会重新校验目标（仅允许公网 Web 端口）。3xx 跳转会展示 Location 指向。
