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.

miniOrange

Prashant

brokenlinkchecker

jayeshprajapat

You can check dead links present on your WordPress website using this FREE, Simple & very easy-to-setup plugin.
The plugin is designed to find and verify links that are posted anywhere on your website. Each link is checked to find if it works as intended or not. It allows you to find broken image links as well.
Dead links across your website may cause your SEO rankings to decrease, as Google and other search engine crawlers find them and mark them as harmful. These links can be posted anywhere on your forums as comments or posts.
Broken Link Checker monitors and tests all internal links & external links on your site. It helps you in SEO optimization and user experience.
The plugin allows you to check all comments and posts through a single pass and generates a report about comments, posts and links that may need to be removed or modified.
The plugin also generates report for the links which are getting redirected to other url. Report also shows wherer it is getting redirected to. 
This plugin also provides one more button in report tab which redirects to parent page of Broken Link.
<h4>FREE Plugin Feature</h4>
<ul>
<li>Manual Scan: Scans dead links present on your WordPress site’s published pages.</li>
<li>Report: You can see the report during the scan too.</li>
<li>Edit page: Provides an link to edit the parent page of broken link.</li>
<li>Download report in CSV format: You can download the report in CSV format.</li>
</ul>

Broken Link Checker | Finder

Detect broken links, broken images, embed youtube videos using the simple to use Broken Link Checker | Finder plugin.

LinkSentry – Broken Content Reporter vs Broken Link Checker | Finder