The DEMO version only includes 10 pages:
http://qdownloader.cc
http://qdownloader.cc/youtube-video-downloader.html
http://qdownloader.cc/facebook-video-downloader.html
http://qdownloader.cc/twitter-video-downloader.html
http://qdownloader.cc/bookmarklet.html
http://qdownloader.cc/ar.html
http://qdownloader.cc/fr.html
http://qdownloader.cc/it.html
http://qdownloader.cc/fa.html
http://qdownloader.cc/es.html

It is possible to download these free files and install them on your server, so you can test how the site works.
Visit https://www3.waybackmachinedownloader.com/website-downloader-online/scrape-all-files/ to buy a fully functioning site.
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