+---------------------------------------------+
|                   REQUEST                   |
+---------------------------------------------+
GET / HTTP/1.1
Host: yj565.com
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-c4842be7b8844618b7e9ad059252cf7f-d7af4fae42e15c1a-01
Accept-Encoding: gzip




+---------------------------------------------+
|                   RESPONSE                  |
+---------------------------------------------+
HTTP/1.1 521 
Connection: close
Content-Length: 15
Alt-Svc: h3=":443"; ma=86400
Cache-Control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Cf-Ray: 94b9ad38ec4166d8-AMS
Content-Type: text/plain; charset=UTF-8
Date: Fri, 06 Jun 2025 17:37:15 GMT
Expires: Thu, 01 Jan 1970 00:00:01 GMT
Nel: {"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Referrer-Policy: same-origin
Report-To: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=Pkp%2FJFSw%2B7YQYFLyXUOoCg%2F1kJTKNw5pxIig%2BFd%2Bo9WOSbPgH4hDaDNnKQKa8FrFmdWSWzGckAKhS%2By29TIsmz4V%2FIIUDgUE5DNgY3o5Q4aRFNnakNQr%2BhIxfvE%3D"}],"group":"cf-nel","max_age":604800}
Server: cloudflare
Server-Timing: cfL4;desc="?proto=TCP&rtt=220616&min_rtt=220616&rtt_var=110308&sent=1&recv=3&lost=0&retrans=0&sent_bytes=0&recv_bytes=272&delivery_rate=0&cwnd=30&unsent_bytes=0&cid=0000000000000000&ts=0&x=0"
Speculation-Rules: "/cdn-cgi/speculation"
X-Frame-Options: SAMEORIGIN


error code: 521