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

kevinweber

This plugin improves page load time and increases your Google PageSpeed Score. It works with oEmbed and replaces embedded Youtube and Vimeo videos with a clickable preview image. 
By loading videos only when the user clicks on the preview image, no unnecessary JavaScript is loaded. Especially on sites with many embedded videos this will make your visitors happy. Additionally, all Youtube videos are loaded in a privacy-enhanced mode using the “https://www.youtube-nocookie.com” embed URL.
This plugin works for your existing YouTube and Vimeo blocks. No vendor lock-in and no custom shortcodes: Easily turn the plugin on and off anytime.
Plugin review with speed test results <a href="https://wptavern.com/speed-up-wordpress-with-lazy-load-for-videos" rel="nofollow ugc">on WP Tavern</a>. 
Developers can contribute <a href="https://github.com/kevinweber/lazy-load-for-videos" rel="nofollow ugc">on Github</a>. 
More about the author: <a href="https://www.kweber.com" rel="nofollow ugc">on kweber.com</a>.
<h4>Some additional features:</h4>
<ul>
<li>Display video titles on preview images</li>
<li>Display privacy disclaimer on top of preview images (e.g. for GDPR compliance)</li>
<li>Pre-roll and post-roll advertisements: Convert all videos into a playlist and automatically add your corporate video, product teaser or another video advertisement to every video. (Great for branding and video ads!)</li>
<li>Hide annotations such as “subscribe to channel” to avoid distractions</li>
<li>Add custom CSS via the plugin’s admin panel</li>
<li>Choose custom colour for your Vimeo player</li>
<li>Hide controls from Youtube player</li>
<li>Hide information like the video title and uploader when the video starts playing</li>
<li>Even lazy load videos in text widgets (Youtube only)</li>
<li>Choose between thumbnail sizes (standard or cover)</li>
<li>Choose from several play button styles</li>
<li>Choose the traditional red or the alternative white progress bar for the Youtube video player</li>
<li>Don’t show related videos at the end of your videos</li>
<li>Works with WordPress Multisite and many plugins such as TablePress</li>
</ul>
<h4>Future features:</h4>
<ul>
<li>Set a custom preview image per video</li>
<li>Track how often the videos have been loaded with Google Analytics</li>
<li>… YOU want a new feature RIGHT NOW? Please implement it yourself and <a href="https://github.com/kevinweber/lazy-load-for-videos" rel="nofollow ugc">contribute on Github</a>, and I’ll publish your enhancements to the official WordPress directory.</li>
</ul>
<h4>Translators</h4>
<ul>
<li>Serbian (sr_RS) – <a href="//firstsiteguide.com/" rel="nofollow ugc">Ogi Djuraskovic</a></li>
<li>Spanish (es_ES) – <a href="http://po5i.github.io/" rel="nofollow ugc">Carlos Villavicencio</a></li>
</ul>
If you have created your own language pack, or have an update of an existing one, you can <a href="https://www.kweber.com/contact/" rel="nofollow ugc">send me</a> your gettext PO and MO so that I can bundle it into my plugin. You can download the latest POT file <a href="https://plugins.svn.wordpress.org/lazy-load-for-videos/trunk/languages/lazy-load-for-videos.pot" rel="nofollow ugc">from here</a>.

Lazy Load for Videos

We have pages with multiple videos and that slowed down the page load and increased network traffic. This plugin improved it a lot. Reduced blocking of some pages with seconds and reduced the page load from 3MB to 1,3MB.



Works great


I noticed Squarespace has a much slicker way of loading and showing embedded videos, and I wanted it.   This plugin works perfectly to provide it so that my video portfolio page loads faster and looks better.  Thanks to the developer!


Simple solution for making video pages fast like Squarespace

Boost page speed by replacing embedded YouTube and Vimeo videos with a clickable preview image. Video scripts only load on click.

iframe vs Lazy Load for Videos