=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 302 Found : Moved Temporarily
Location: https://www.un.org/millenniumgoals/
Connection: close
Cache-Control: no-cache
Pragma: no-cache

HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 01:47:58 GMT
Server: Apache
Accept-Ranges: bytes
Keep-Alive: timeout=5, max=99
Connection: Keep-Alive
Content-Type: text/html
Strict-Transport-Security: max-age=7776000
Set-Cookie: citrix_ns_id=sttbZFynWBI5F0oMQ5/+DQ9ianY0001; Domain=.un.org; Path=/; HttpOnly

Request headers
================
HEAD /millenniumgoals/ HTTP/1.1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Host: www.un.org
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.