=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Server: nginx/1.16.0
Date: Wed, 07 Aug 2019 03:31:20 GMT
Content-Type: text/html; charset=UTF-8
Content-Length: 46824
Connection: close
X-Pingback: http://entopsis.com/xmlrpc.php
Link: &lt;http://entopsis.com/wp-json/&gt;; rel=&quot;https://api.w.org/&quot;, &lt;http://entopsis.com/&gt;; rel=shortlink
Cache-Control: max-age=604800
Expires: Wed, 14 Aug 2019 03:31:19 GMT
Accept-Ranges: bytes
X-Varnish: 1949283249
Age: 0
Via: 1.1 varnish
X-Cache: MISS

Request headers
================
HEAD / HTTP/1.1
Host: entopsis.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36
Accept: */*
Referer: https://bme.fiu.edu
Connection: close


Link is valid.