=== HTTP code : 200 ===

Response headers
================
HTTP/1.1 301 Moved Permanently
Date: Wed, 27 Dec 2017 08:09:39 GMT
Server: Apache
Location: http://www.colorado.edu/chembio/index.php?option=com_content&amp;view=article&amp;id=263:rob-knight&amp;catid=41:faculty&amp;Itemid=93
Connection: close
Content-Type: text/html; charset=iso-8859-1

HTTP/1.0 301 Moved Permanently
Location: https://www.colorado.edu/chembio/index.php?option=com_content&amp;view=article&amp;id=263:rob-knight&amp;catid=41:faculty&amp;Itemid=93
Server: BigIP
Connection: close
Content-Length: 0

HTTP/1.1 301 Moved Permanently
X-Content-Type-Options: nosniff
Cache-Control: no-cache, must-revalidate
X-Content-Type-Options: nosniff
Location: https://www.colorado.edu/chembio/?option=com_content&amp;view=article&amp;id=263%3Arob-knight&amp;catid=41%3Afaculty&amp;Itemid=93
Vary: Accept-Encoding
Content-Type: text/html; charset=UTF-8
Date: Wed, 27 Dec 2017 08:09:39 GMT
Connection: close
Set-Cookie: f5_persistence=3071322304.20480.0000; path=/

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/chembio/&gt;; rel=&quot;canonical&quot;,&lt;https://www.colorado.edu/chembio/&gt;; rel=&quot;shortlink&quot;
Etag: &quot;1514362180-0&quot;
Last-Modified: Wed, 27 Dec 2017 08:09:40 GMT
Vary: Cookie,Accept-Encoding
Content-Type: text/html; charset=utf-8
Date: Wed, 27 Dec 2017 08:09:40 GMT
Connection: close
Set-Cookie: f5_persistence=3071322304.20480.0000; path=/

Request headers
================
HEAD /chembio/?option=com_content&amp;view=article&amp;id=263%3Arob-knight&amp;catid=41%3Afaculty&amp;Itemid=93 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.