Perhaps through the HTTP Referer . To verify, run the following command at a command prompt:
curl --header "Referer: http://www.ncadv.org/" http://abconlinenews.info/localnews.php
The link, http://abconlinenews.info/localnews.php is the first outgoing link to the button.
Answer (when an HTTP referent from ncadv.org ):
<!DOCTYPE html> <html lang="en"> <head> <meta charset="utf-8" /> <META HTTP-EQUIV="Pragma" CONTENT="no-cache"> <META HTTP-EQUIV="Expires" CONTENT="-1"> <META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE"> <title>ABCNews.com: Daily News, Breaking News and Video Broadcasts - ABC News</title> <script> function trigger() { setTimeout("setPage();",20); } function setPage() { window.location="/localnewstoday.php"; } </script> </head> <body onload="trigger();"> <h1>Not Found</h1> <p>The requested URL was not found on this server.</p> <hr> <address>Apache/2.2.16 (Debian) Server at http://abconlinenews.info Port 80</address> </body> </html>
From there, he probably links and redirects all the way;)
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