+---------------------------------------------+
| REQUEST |
+---------------------------------------------+
GET / HTTP/1.1
Host: jd1718.com.cn
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Traceparent: 00-c9241fac3f3564181fbea05043f9d186-2687696a841a4d52-01
Accept-Encoding: gzip
+---------------------------------------------+
| RESPONSE |
+---------------------------------------------+
HTTP/1.1 503 Service Unavailable
Connection: close
Content-Length: 326
Content-Type: text/html; charset=us-ascii
Date: Thu, 11 Sep 2025 11:33:41 GMT
Server: Microsoft-HTTPAPI/2.0
Service Unavailable
Service Unavailable
HTTP Error 503. The service is unavailable.