=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Fri, 29 Dec 2017 08:32:05 GMT
Server: Apache
Location: http://www.colorado.edu/biofrontiers/
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.0 301 Moved Permanently
Location: https://www.colorado.edu/biofrontiers/
Server: BigIP
Connection: close
Content-Length: 0

HTTP/1.1 200 OK
X-Content-Type-Options: nosniff
Cache-Control: public, max-age=10800
X-Content-Type-Options: nosniff
Content-Language: en
X-Frame-Options: SAMEORIGIN
Link: &lt;https://www.colorado.edu/biofrontiers/&gt;; rel=&quot;canonical&quot;,&lt;https://www.colorado.edu/biofrontiers/&gt;; rel=&quot;shortlink&quot;
Etag: &quot;1514536195-0&quot;
Last-Modified: Fri, 29 Dec 2017 08:29:55 GMT
Vary: Cookie,Accept-Encoding
Content-Type: text/html; charset=utf-8
Date: Fri, 29 Dec 2017 08:32:06 GMT
Connection: close
Set-Cookie: f5_persistence=3071322304.20480.0000; path=/

Request headers
================
HEAD /biofrontiers/ HTTP/1.0
Host: www.colorado.edu
User-Agent: Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 6.1; WOW64; Trident/5.0)
Accept: */*
Referer: http://jagjuice.us
Connection: close


Link is valid.