On The Fly YouTube Embeds creates a page on your site that will play any YouTube video based on the requested URL without having to create a new page for each individual video.
You’re then able to view any YouTube video on your site simply by navigating to a URL that includes a YouTube video ID.
This is useful for sites that want to host a lot of video content on YouTube, but provide a simple way for users to view them without leaving their site.
For example, if you were to navigate to something like http://example.com/video/jOyFDvWf83w/ it would show you the YouTube video with the ID of jOyFDvWf83w
You could also replace that video ID in the URL with any other YouTube video ID and it’ll work as well.
You can play any YouTube video on your site without having to manually create a new page for it. Point visitors to the appropriate URL and it just works.