johnh10

Broken Link Checker for YouTube is a WordPress plugin that will automatically validate 
YouTube embeds found in your published posts content using the official API.
It does this by extracting video IDs from each post and querying the YouTube 
API to ensure those IDs are still valid. This is a MUST for any video 
site that wants to retain their visitors and not annoy them with broken 
content.
The truth is videos are uploaded and removed frequently – either by the user 
or the site itself for usage violations. If this happens to a video you have 
embedded on your site, your visitors are going to see broken content instead 
of the video they expected. Don’t let that happen.
Quick Summary:
<iframe loading="lazy" class="youtube-player" width="640" height="360" src="https://www.youtube.com/embed/jxc6ioU0WJ0?version=3&rel=1&showsearch=0&showinfo=1&iv_load_policy=1&fs=1&hl=en-US&autohide=2&wmode=transparent" allowfullscreen="true" style="border:0;" sandbox="allow-scripts allow-same-origin allow-popups allow-presentation allow-popups-to-escape-sandbox"></iframe>

Broken Link Checker for YouTube

Will automatically validate
YouTube embeds found in your published posts content using the official API.

Nductiv

Archive.org offers free streaming of thousands of moving image selections and even 
more audio materials. The archive-org plugin offers a simple shortcode syntax for 
embedded video, audio, and playlists into WordPress post/pages.
Usage:
Place the shortcode [archive-org embed=embedID] into any post or page. embedID can be found on the Archive.org website at the tail end of the URL for a video or audio item or playlist. The plugin automatically recognizes playlists.
Optional Parameters:
<pre><code>width = width in pixels of the embedded player
height = height in pixels of the embedded player
playlist = true/false - determines whether a dropdown list of all the files is displayed
</code></pre>
Example:
An example using all the options might look like:
<pre><code>[archive-org embed=VariousBannedAndCensoredCartoons width=640 height=480 playlist=true]
</code></pre>
Audio playlists include the dropdown list within the vertical dimension you’ve specified. If you don’t want a dropdown, set the height=30. However, if you desire the dropdown playlist, you should probably set height to at least 380 pixels, as Archive.org has a bug in audio playlists which make the scrollbar troublesome at smaller heights.
If you set playlist=false, or omit the playlist parameter, you won’t get the dropdown. However you can move to different playlist selections by using the track forward/backward buttons in the player. With playlist=false on audio files/playlists, it’s best to set height=30.

Archive.org WP

Archive.org offers free streaming for thousands of moving image and audio playlists.
This plugin offers a shortcode to insert these into pages/posts.

Broken Link Checker for YouTube vs Archive.org WP