Desk9 Design

LinkSentry is a lightweight WordPress plugin that allows your blog readers to easily report broken content. Whether it’s a broken download link, a dead external link, or a missing image, LinkSentry makes it simple for visitors to notify you.
Features:
<ul>
<li>Shortcode <code>[linksentry]</code> and Gutenberg block “Report Issue (LinkSentry)”</li>
<li>Accessible modal dialog with keyboard navigation and ARIA labels</li>
<li>Issue type selection (Download, Link, Image, Other)</li>
<li>Optional message and email fields</li>
<li>Stores reports as a custom post type with metadata</li>
<li>Per-IP throttling to prevent spam</li>
<li>Nonce verification and honeypot field for security</li>
<li>Optional email notifications to site administrators</li>
<li>Lightweight: assets only load where the shortcode/block is used</li>
<li>Fully internationalized (ready for translation)</li>
</ul>
Security:
<ul>
<li>Nonce verification on all submissions</li>
<li>Honeypot anti-spam field</li>
<li>Input sanitization and output escaping</li>
<li>Per-IP rate limiting via WordPress transients</li>
<li>IP addresses are hashed before storage</li>
</ul>
Admin Features:
<ul>
<li>View all reports in the WordPress admin</li>
<li>Custom columns: Issue Type, Page URL, Message, Submitted date</li>
<li>Settings page under Settings → LinkSentry</li>
<li>Configure notification email, enable/disable notifications, throttle window</li>
<li>Customizable button and form labels</li>
</ul>
<h3>Shortcode Usage</h3>
The <code>[linksentry]</code> shortcode can be used anywhere in your posts, pages, or widgets.
Basic usage: 
 <code>[linksentry]</code>
With button style options: 
 <code>[linksentry buttonStyle="button"] 
[linksentry buttonStyle="text-link"] 
[linksentry buttonStyle="large-box"]</code>
With custom info text (for large-box style): 
 <code>[linksentry buttonStyle="large-box" infoText="Found an issue? Let us know!"]</code>
Available button styles: 
* <code>button</code> – Default button style with icon (default) 
* <code>text-link</code> – Text link with icon, underline on hover 
* <code>large-box</code> – Full-width gray box with info text and button

LinkSentry – Broken Content Reporter

LinkSentry adds a "Report an issue" button (shortcode + block). Readers can report broken links, downloads, or images.

johnh10

Broken Link Checker for YouTube is a WordPress plugin that will automatically validate 
YouTube embeds found in your published posts content using the official API.
It does this by extracting video IDs from each post and querying the YouTube 
API to ensure those IDs are still valid. This is a MUST for any video 
site that wants to retain their visitors and not annoy them with broken 
content.
The truth is videos are uploaded and removed frequently – either by the user 
or the site itself for usage violations. If this happens to a video you have 
embedded on your site, your visitors are going to see broken content instead 
of the video they expected. Don’t let that happen.
Quick Summary:
<iframe loading="lazy" class="youtube-player" width="640" height="360" src="https://www.youtube.com/embed/jxc6ioU0WJ0?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>

Broken Link Checker for YouTube

Will automatically validate
YouTube embeds found in your published posts content using the official API.

LinkSentry – Broken Content Reporter vs Broken Link Checker for YouTube