=== HTTP code : 301 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: Sun-ONE-Web-Server/6.1
Date: Sat, 10 May 2025 07:51:39 GMT
Content-length: 122
Content-type: text/html
Location: http://www.ies.org
Connection: close

HTTP/1.1 301 Moved Permanently
Server: nginx/1.27.4
Date: Sat, 10 May 2025 07:51:39 GMT
Content-Type: text/html; charset=iso-8859-1
Connection: close
Location: https://www.ies.org/
X-Proxy-Cache: DISABLED

Request headers
================
HEAD / HTTP/1.1
Host: www.ies.org
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.5112.34 Safari/537.36
Accept: */*
Referer: https://greenmanual.rutgers.edu
Connection: close


Link is valid.