Not data.

http://ftr.fivefilters.org/makefulltextfeed.php?url=” the data returns empty after passing the url into, for example "http://ftr.fivefilters.org/makefulltextfeed.php?url=http://www.skysports.com/boxing/news/12183/10809878/joshua- Vs-klitschko-wladimir-klitschkos-boxing-brain-will-beat-brawn-says-his-brother-vitali "

The URL you pass should be URL-encoded. If you use our form at http://fivefilters.org/content-only/ the URL will be passed correctly. If you’re constructing the URL yourself, make sure you URL-encode using your programming language or a tool like this http://meyerweb.com/eric/tools/dencoder/

The result should look something like:

http://ftr.fivefilters.org/makefulltextfeed.php?url=http%3A%2F%2Fwww.skysports.com%2Fboxing%2Fnews%2F12040%2F10809878%2Fjoshua-vs-klitschko-wladimir-klitschko39s-boxing-brain-will-beat-brawn-says-his-brother-vitali