=== HTTP code : 200 ===

HTTP/1.1 301 Moved Permanently
Server: Apache/2.2.3 (Red Hat)
Location: http://www.drgreene.com/guest-posts/
Content-Type: text/html; charset=iso-8859-1
Content-Length: 326
Date: Sun, 12 May 2013 18:50:32 GMT
X-Varnish: 170115164
Age: 0
Via: 1.1 varnish
Connection: keep-alive

HTTP/1.1 200 OK
Server: Apache/2.2.3 (Red Hat)
X-Powered-By: PHP/5.2.17
X-Pingback: http://www.drgreene.com/xmlrpc.php
Link: <http://wp.me/P3m6gQ-9Qr>; rel=shortlink
X-Mod-Pagespeed: 1.3.25.4-2941
Vary: Accept-Encoding
Cache-Control: max-age=0, no-cache
Content-Type: text/html; charset=UTF-8
Content-Length: 111923
Date: Sun, 12 May 2013 18:50:33 GMT
X-Varnish: 170115165
Age: 0
Via: 1.1 varnish
Connection: keep-alive


Link is valid.