The DEMO version only includes 4 pages:
http://youtubedownloaderwimdows.com
http://youtubedownloaderwimdows.com/we-take-the-screening-of-our-teams-of-close-protection-extremely-seriously.html
http://youtubedownloaderwimdows.com/author/admin.html
http://youtubedownloaderwimdows.com/category/uncategorized.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://www.waybackmachinedownloader.com/en/buy-wayback-machine-downloader-recover/ to buy a fully functioning site.
Go back to the index page