I saw the listing. That's so open ended. What does "Most popular video downloading service on the internet!" even mean? Isn't that YouTube? Or is it some torrent site or other.
And it only has profits $12,173 /mo at 95% of revenue.
Let us know if you find out, but it's probably nothing I've ever heard of.
EDIT also asking 500K+ for a site generating $12173/ Month is silly in the current climate
EDIT 2 actually from the wording probably a "video downloader" site like Savefrom.net or Savethevideo.net