=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Sun, 14 Apr 2019 20:11:25 GMT
Server: Apache/2.4.7 (Ubuntu)
Location: https://muledesign.com/blog
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.1 200 OK
Date: Sun, 14 Apr 2019 20:11:25 GMT
Server: Apache/2.4.7 (Ubuntu)
X-Powered-By: Craft CMS
Set-Cookie: CraftSessionId=5dpsr7j65htvq0sc3rh4bsvkj6; path=/; secure; HttpOnly
Expires: Thu, 19 Nov 1981 08:52:00 GMT
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0
Pragma: no-cache
charset: utf-8
Connection: close
Content-Type: text/html; charset=utf-8

Request headers
================
HEAD /blog HTTP/1.1
Host: muledesign.com
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.