=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Date: Mon, 29 Jul 2019 00:08:03 GMT
Server: Apache
Set-Cookie: JSESSIONID=2C1C87EFEAD8EBFA5CF3FB72414749C1.cl051; Path=/unodc/; HttpOnly
Last-Modified: Mon, 11 Sep 2017 07:14:36 GMT
Expires: Tue, 30 Jul 2019 00:08:03 GMT
Connection: close
Content-Type: text/html;charset=utf-8
Set-Cookie: UNODC-NSLB=ffffffffc3a0404345525d5f4f58455e445a4a4229a0;path=/;httponly

Request headers
================
HEAD /unodc/en/prevention/youth-initiative.html 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.unodc.org
Accept: */*
Referer: https://ssdp.org
Connection: close


Link is valid.