=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Server: nginx/1.10.3 (Ubuntu)
Date: Mon, 15 Apr 2019 03:12:57 GMT
Content-Type: text/html
Content-Length: 194
Connection: close
Location: https://whois.ws/

HTTP/2 200 
server: nginx/1.10.3 (Ubuntu)
date: Mon, 15 Apr 2019 03:12:58 GMT
content-type: text/html; charset=UTF-8
set-cookie: PHPSESSID=8uuje37nijujpl079bgv05iv70; path=/
expires: Thu, 19 Nov 1981 08:52:00 GMT
cache-control: no-store, no-cache, must-revalidate
pragma: no-cache

Request headers
================
HEAD / HTTP/2
Host: whois.ws
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: https://itxdesign.com
Connection: close


Link is valid.