miniOrange

brokenlinkchecker

Prashant

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.

codetipi

Damn Spam WordPress Plugin
Damn Spam is a lightweight plugin to help clean up that darned spam. This plugin is highly opinionated and, once activated, will automatically send any comments that contain links in the comment body directly to the spam inbox. Granular settings for deeper control will be added over time.
If you’re tired of having to sift through hundreds of comments to find real ones without any links and manually send spammy ones to the spam inbox – then this is the plugin is for you.
<h3>Reporting Bugs</h3>
If you run into any issues, please let us know by <a href="https://github.com/codetipi/damn-spam/issues/new" rel="nofollow ugc">opening up a new issue here</a>.

Damn Spam

Damn Spam is a lightweight anti-spam plugin. Currently highly opinionated - it automatically sends any new comments with links to your spam inbox

Broken Link Checker | Finder vs Damn Spam