bogdan

Embeds are needed to embed video from youtube or to embed Google Map or just to embed content from external page. 
WordPress removes embed when you switch from “HTML” to “Visual” tab because of the security reasons. 
So you can embed object code using this shortcode <code>[iframe src="http://player.vimeo.com/video/3261363" width="100%" height="480"]</code>.

iframe to embed

Embeds are needed to embed video from youtube or to embed Google Map or just to embed content from external page.

Noor Alam

<a href="https://noorsplugin.com/simple-youtube-embed-plugin/" rel="nofollow ugc">Simple YouTube Embed</a> plugin is the easiest way to embed YouTube videos in WordPress. This plugin extends the default YouTube embed with advanced player parameters.
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/-8yCP-CnUSQ?version=3&rel=0&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>
Unlike other YouTube plugins, It doesn’t replace your on-page video embed code with JavaScript/HTML code. Loading a video with JavaScript doesn’t provide any video SEO benefit as a search engine crawler will only see some code instead of the actual video object.
Simple YouTube Embed is easy to use because there is no setting to configure. It uses the oEmbed API so your videos will be responsive and provide all the benefits that core WordPress YouTube embed has to offer. YouTube videos on your website will continue to work even if you choose to deactivate the plugin.
<h3>Features</h3>
<ul>
<li>Responsive and mobile friendly.</li>
<li>Proper YouTube video embed with no additional JavaScript code.</li>
<li>No setting to configure. Install, activate and start using it.</li>
<li>No YouTube API key needed.</li>
<li>Embed YouTube videos in WordPress with the YouTube block.</li>
<li>Automatically play a video.</li>
<li>Enable/Disable display of suggested videos when the video finishes.</li>
<li>Enable/Disable player controls.</li>
<li>Enable/Disable fullscreen.</li>
<li>Mute a YouTube Video.</li>
</ul>
<h3>Simple YouTube Embed Extensions</h3>
<ul>
<li><a href="https://noorsplugin.com/simple-youtube-embed-plugin/" rel="nofollow ugc">YouTube Advanced Parameters</a></li>
</ul>
<h3>How to Use the YouTube Embed Plugin in WordPress</h3>
Create a new post/page and add a YouTube block. Copy and paste the YouTube video URL into it. For example:
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g
</code></pre>
YouTube Video Autoplay
In order to automatically play a video you can add “autoplay=1” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&autoplay=1
</code></pre>
Related YouTube Videos
In order to disable related videos from showing you can add “rel=0” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&rel=0
</code></pre>
YouTube Video Controls
If you do not want to show player controls you can add “controls=0” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&controls=0
</code></pre>
YouTube Video Fullscreen
If you do not want to allow fullscreen option in the player you can add “fs=0” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&fs=0
</code></pre>
YouTube Video Mute
To start a video in the muted state you can add “mute=1” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&mute=1
</code></pre>
YouTube Video Playlist
If you want to turn a video into a single-video playlist you can add “playlist=VIDEO_ID” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&playlist=Vpg9yizPP_g
</code></pre>
YouTube Video IV Load Policy
To not show video annotations by default you can add “iv_load_policy=3” to your YouTube URL.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&iv_load_policy=3
</code></pre>
Video annotations are shown by default.
<h3>YouTube Advanced Parameters</h3>
With the Advanced Parameters extension you can use additional advanced parameters in your YouTube videos.
color
This parameter specifies the color that will be used in the player’s video progress bar to highlight the amount of the video that the viewer has already seen.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&color=white
</code></pre>
Valid parameter values are red and white, and, by default, the player uses the color red in the video progress bar.
Note: Setting the color parameter to white will disable the modestbranding option.
disablekb
Setting this parameter’s value to 1 causes the player to not respond to keyboard controls. The default value is 0.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&disablekb=1
</code></pre>
end
This parameter specifies the time, measured in seconds from the start of the video, when the player should stop playing the video. The parameter value is a positive integer.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&end=10
</code></pre>
The time is measured from the beginning of the video and not from the value of the start player parameter.
start
This parameter causes the player to begin playing the video at the given number of seconds from the start of the video. The parameter value is a positive integer.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&start=5
</code></pre>
loop
This parameter causes the video to play repeatedly. The parameter value is a positive integer (e.g. loop=”1″).
In order for the loop feature to work, the video needs to be turned into a single-video playlist as well.
<pre><code>https&#58;//www.youtube.com/watch?v=Vpg9yizPP_g&playlist=Vpg9yizPP_g&loop=1
</code></pre>
For documentation please visit the <a href="https://noorsplugin.com/simple-youtube-embed-plugin/" rel="nofollow ugc">YouTube</a> plugin page

Simple YouTube Embed

Embed YouTube videos in WordPress beautifully. Embed YouTube video with a URL or shortcode and customize the player using this YouTube embed plugin.

iframe to embed vs Simple YouTube Embed