=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Fri, 03 Dec 2021 09:19:25 GMT
Server: Apache
Location: https://referralrock.com/
Cache-Control: max-age=600
Expires: Fri, 03 Dec 2021 09:29:25 GMT
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.1 200 OK
Server: nginx
Date: Fri, 03 Dec 2021 09:19:26 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Vary: Accept-Encoding
Last-Modified: Thu, 02 Dec 2021 12:56:49 GMT
Cache-Control: max-age=0
Expires: Fri, 03 Dec 2021 09:19:26 GMT
Vary: Accept-Encoding

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


Link is valid.