DigiDepot

Tubelastica is a lightweight YouTube embed block for WordPress.
It helps users add a single YouTube video easily in posts, pages, and block-based widget areas. The plugin is designed to work smoothly in narrow sidebar areas, where standard video embeds may cause layout or control issues.
This design helps avoid layout and control issues in narrow sidebar areas while giving users flexible control over video behavior.
<h3>Features</h3>
<ul>
<li>Embed a single YouTube video using a block</li>
<li>Lazy loading enabled by default for better performance</li>
<li>Optional caption support</li>
<li>Width control for post and page content</li>
<li>Sidebar-friendly behavior to prevent layout issues</li>
<li>Compatible with block-based widget areas</li>
<li>Lightweight and fast</li>
</ul>

Tubelastica

Lightweight YouTube embed block with lazy loading and smart behavior for posts and sidebars.

Automattic

10up

Mohammad Jangda

Jake Goldman

Lazy load images to improve page load times. Uses jQuery.sonar to only load an image when it’s visible in the viewport.
This plugin is an amalgamation of code written by the WordPress.com VIP team at Automattic, the TechCrunch 2011 Redesign team, and Jake Goldman (10up LLC).
Uses <a href="http://www.artzstudio.com/files/jquery-boston-2010/jquery.sonar/" rel="nofollow ugc">jQuery.sonar</a> by Dave Artz (AOL).

Lazy Load

I hate plugins that don't have any sort of settings or anything. I can't tell if it's actually doing anything. How can I check?

Can't tell if it's working

Lazy load images to improve page load times and server bandwidth. Images are loaded only when visible to the user.

Tubelastica vs Lazy Load