mrwweb

cbirdsong

If you care about performance, privacy, and user experience, this block is for you.
This plugin enhances the default YouTube and Vimeo blocks—including any existing blocks—and changes their behavior to only load the video thumbnail until a visitor chooses to play the video.
<h4>Features</h4>
<ul>
<li>Load YouTube videos faster (uses the <code>lite-youtube</code> custom-element)</li>
<li>Load Vimeo videos faster (uses the <code>lite-viemo</code> custom-element)</li>
<li>Loads YouTube videos from nocookie.youtube.com for enhanced privacy</li>
<li>Works without JavaScript (shows link to video instead in a player-like design)</li>
<li>No plugin lock-in! Automatically improves the core Embed block. Turn the plugin off and the behavior goes back to the WordPress default.</li>
</ul>
<h4>Want more features?</h4>
I’m considering building a PRO version with the potential following features:
<ul>
<li>Options to set a custom start and end time</li>
<li>Custom thumbnail images for videos</li>
<li>Custom aspect ratios for videos</li>
<li>Support for YouTube shorts</li>
<li>Control whether to load video from nocookie.youtube.com or not</li>
<li>Adjust the image quality of the thumbnail</li>
<li>Support for playlists, not just single videos</li>
<li>Full support for all YouTube query parameters (https://developers.google.com/youtube/player_parameters)</li>
<li>Classic Editor / [embed] shortcode support</li>
</ul>
If enough people express interest, I’ll build it! <a href="https://mrwweb.com/wordpress-plugins/enhanced-embed-block/#pro" rel="nofollow ugc">Let me know if you’re interested!</a>
<h4>Contribute on Github</h4>
<a href="https://github.com/mrwweb/enhanced-embed-block" rel="nofollow ugc">Enhanced Embed Block is on Github</a> for pull requests and bug reports.
<h3>Software</h3>
This plugin uses the <a href="https://github.com/justinribeiro/lite-youtube" rel="nofollow ugc"><code>lite-youtube</code> custom-element</a> under the MIT license. Thank you to Paul Irish and Justin Ribiero for their work on that project.
This plugin uses the <a href="https://github.com/cshawaus/lite-vimeo" rel="nofollow ugc"><code>lite-vimeo</code> custom-element</a> under the MIT license. Thank you to Chris Shaw for their work on that project.

Enhanced Embed Block for YouTube & Vimeo

Enhance the default YouTube and Vimeo Embed blocks to load faster.

webvitaly

<ul>
<li><a href="https://r.freemius.com/13759/8047958/" title="Advanced iFrame" rel="nofollow ugc">Advanced iFrame</a></li>
<li><a href="http://web-profile.net/wordpress/plugins/iframe/" title="Plugin page" rel="nofollow ugc">iframe</a></li>
<li><a href="http://web-profile.net/donate/" title="Support the development" rel="nofollow ugc">Donate</a></li>
<li><a href="https://github.com/webvitalii/iframe" title="Fork" rel="nofollow ugc">GitHub</a></li>
</ul>
[iframe src=”http://www.youtube.com/embed/7_nAZQt9qu0″ width=”100%” height=”500″] shortcode 
should show something like this:
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/7_nAZQt9qu0?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>
WordPress removes iframe html tags because of security reasons. 
Iframe shortcode is the replacement of the iframe html tag and accepts the same params as iframe html tag does. 
You may use iframe shortcode to embed content from YouTube, Vimeo, Google Maps or from any external page.
If you need to embed content from YouTube, Vimeo, SlideShare, SoundCloud, Twitter via direct link, you may use <code>[embed]http://www.youtube.com/watch?v=7_nAZQt9qu0[/embed]</code> shortcode. 
[embed] shortcode is a core WordPress feature and can <a href="https://codex.wordpress.org/Embeds" rel="nofollow ugc">embed content from many resources via direct link</a>.
Important: You can not embed HTTP pages into HTTPS pages and vice versa. 
So the protocol (http or httpS) for parent and embedded page should match.
<h4>iframe params:</h4>
<ul>
<li>src – source of the iframe: <code>[iframe src="http://www.youtube.com/embed/7_nAZQt9qu0"]</code>; by default src=”http://www.youtube.com/embed/7_nAZQt9qu0″;</li>
<li>width – width in pixels or in percents: <code>[iframe width="100%"]</code> or <code>[iframe width="600"]</code>; by default width=”100%”;</li>
<li>height – height in pixels: <code>[iframe height="500"]</code>; by default height=”500″;</li>
<li>scrolling – with or without the scrollbar: <code>[iframe scrolling="no"]</code>; by default scrolling=”yes”;</li>
<li>frameborder – with or without the frame border: <code>[iframe frameborder="0"]</code>; by default frameborder=”0″;</li>
<li>marginheight – height of the margin: <code>[iframe marginheight="0"]</code>; removed by default;</li>
<li>marginwidth – width of the margin: <code>[iframe marginwidth="0"]</code>; removed by default;</li>
<li>allowtransparency – allows to set transparency of the iframe: <code>[iframe allowtransparency="true"]</code>; removed by default;</li>
<li>id – allows to add the id of the iframe: <code>[iframe id="custom_id"]</code>; removed by default;</li>
<li>class – allows to add the class of the iframe: <code>[iframe class="custom_class"]</code>; by default class=”iframe-class”;</li>
<li>style – allows to add the css styles of the iframe: <code>[iframe style="margin-left:-30px;"]</code>; removed by default;</li>
<li>same_height_as – allows to set the height of iframe same as target element: <code>[iframe same_height_as="div.sidebar"]</code>, <code>[iframe same_height_as="div#content"]</code>, <code>[iframe same_height_as="body"]</code>, <code>[iframe same_height_as="html"]</code>; removed by default;</li>
<li>any_other_param – allows to add new parameter of the iframe <code>[iframe any_other_param="any_value"]</code>;</li>
<li>any_other_empty_param – allows to add new empty parameter of the iframe (like “allowfullscreen” on youtube) <code>[iframe any_other_empty_param=""]</code>;</li>
</ul>

iframe

[iframe src="http://www.youtube.com/embed/7_nAZQt9qu0" width="100%" height="500"] shortcode

Enhanced Embed Block for YouTube & Vimeo vs iframe