=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 200 OK
Content-Length: 83992
Content-Type: text/html
Last-Modified: Tue, 13 Feb 2018 00:51:37 GMT
Accept-Ranges: bytes
ETag: &quot;246d76cd64a4d31:0&quot;
Server: Microsoft-IIS/7.5
X-Powered-By: ASP.NET
Date: Tue, 13 Feb 2018 09:42:26 GMT

Request headers
================
HEAD / HTTP/1.1
Host: www.concordia.ca
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: http://51.15.134.16
Connection: close


Link is valid.