=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Wed, 01 Dec 2021 10:16:58 GMT
Content-Type: text/html; charset=iso-8859-1
Connection: close
Server: Apache
Location: https://www.wwf.or.jp/

HTTP/1.1 200 OK
Date: Wed, 01 Dec 2021 10:16:58 GMT
Content-Type: text/html;charset=utf-8
Content-Length: 11541
Connection: close
Server: Apache
Cache-Control: max-age=1800
Expires: Wed, 01 Dec 2021 10:44:50 GMT
Content-Encoding: gzip
Age: 128

Request headers
================
HEAD / HTTP/1.1
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Host: www.wwf.or.jp
Accept: */*
Referer: http://web-marketing.zako.org
Connection: close


Link is valid.