mraliende

The Plugin adds an link preview box to your post. 
The link preview box will be displayed like in Facebook! 🙂
This plugin can be used for free for maximal 10 URL Preview Boxes.
Perhaps you are familiar with Facebook. 
When you write a post in Facebook and you paste an URL into your text, 
Facebook detects that URL and adds automatically information about that URL under your post.
This plugin does it not automatically, you have to use the extra button in the visual editor (“URL BOX”). 
Or you just write [urlpreviewbox url=”\https://….”] into your text. 
This plugin loads information about that URL from https://guteurls.de/ server.
<ol>
<li>Title of that page</li>
<li>Description of that page</li>
<li>An URL of an image</li>
</ol>
And the plugin displays it below your post.
Facebook supports only one preview box per post. 
This plugin supports many preview boxes within one post, if you want.
Do you want to see it live on production servers?
Look here (copy and paste the URLs into your browser):
Example web pages, who use it:
https://alien.de/news/
https://www.ufo-und-alienforum.de/index.php/Thread/30805-Verlassene-Orte-in-Baden-Württemberg/
https://hypnose54321.de/frankfurt/_news.php
:
HOW TO USE IT VIDEO:
http://www.youtube.com/watch?v=4_wIzQbPg84 
<iframe loading="lazy" class="youtube-player" width="750" height="422" src="https://www.youtube.com/embed/4_wIzQbPg84?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>
<h3>Internationalization (i18n)</h3>
Currently we have the plugin configured so it can be easily translated and the following languages supported:
<ul>
<li>de_DE – German in Germany</li>
<li>en_US – English in the U.S.</li>
<li>zh_CN – China</li>
<li>es_ES – Spanish in Spain</li>
<li>ru_RU – Russian in the Russian Federation</li>
</ul>
If your language is not listed above, feel free to create a translation. Here are the basic steps:
<ol>
<li>Copy “gurlpb-en.pot” to “gurlpb-LANG_COUNTRY.pot” – fill in LANG and COUNTRY with whatever you use for WPLANG in wp-config.php</li>
<li>Grab a transalation editor. <a href="http://www.poedit.net/" rel="nofollow ugc">POedit</a> works for us</li>
<li>Translate each line</li>
</ol>

URL-Preview-Box

That was really needed, because the automatic URL detection failed sometimes at very different designed WordPress templates.
This is the WordPress plugin, what I exactly needed. 
I use it now and will use it in the next years for sure.

Now it is possible to add manually preview boxes

This plugin adds link preview box to your post. You just copied & pasted an URL into your posting. :-)

ivantrendafilov

Bulk Trash by URL helps editors and SEOs quickly clean up content by trashing items based on a list of URLs. Paste your URLs, let the plugin map each URL to a post ID (handles common variations like trailing slashes and marketing query params), select what you want to remove, and process in efficient batches with progress feedback.
Key features:
<ul>
<li>Paste URLs to find matching posts, pages, and custom post types.</li>
<li>Fast URL-to-post mapping in AJAX batches with progress bar.</li>
<li>Select exactly which items to trash before running.</li>
<li>Batched trashing with live progress, pause/resume controls.</li>
<li>Optional completion summary with counts and lists (trashed, failed, no permission, invalid).</li>
<li>Settings to tune performance and limits:
<ul>
<li>Max Page Size (mapping batch size)</li>
<li>Max URLs per run</li>
<li>Toggle completion summary</li>
<li>Optional mode to set matched items to Private instead of Trash</li>
</ul>
</li>
</ul>
Built for large lists and long-running jobs. Everything goes to the WordPress Trash, so you can restore or permanently delete as you normally would.
Capabilities & security:
<ul>
<li>Restricted to users who can <code>manage_options</code>.</li>
<li>Nonce-protected AJAX endpoints.</li>
<li>Conservative sanitization and server-side validation.</li>
</ul>
Compatibility notes:
<ul>
<li>Works with sites using pretty permalinks. Mapping relies on WordPress <code>url_to_postid()</code> and common URL variants.</li>
<li>Custom post types are supported if they use public, front-end URLs.</li>
</ul>

Bulk Trash by URL

Bulk‑trash posts, pages and custom post types from pasted URLs. Fast URL mapping, batched processing with pause/resume, and an optional summary.

URL-Preview-Box vs Bulk Trash by URL