Michael Ott

<p>It’s often too easy to make edits to your web site that result in a broken link. This plugin will automatically email the web site administrator (or a specified email address) whenever a 404 is encountered, along with a link to the page the 404 originated from. With this knowledge in hand, you can search the page for the problem and either remove or fix it.</p>
<p>Notifications are also triggered by missing media, such as images, video, CSS files and more.</p>
<h3>Support</h3>
<p>Report any issues at the official <a href="https://wordpress.org/support/plugin/404-notify/" rel="ugc">404 Notify Support</a> WordPress page.</p>
<h3>How to use</h3>
<p>Once activated, notifications are automatially sent to the site administrator, or, you can specify an alternative email address in <strong>Settings</strong> -> <strong>General</strong> and look for the <strong>404 Notify email address</strong> field.</p>
<h3>Uninstall</h3>
<p>Deactivate the plugin, delete if desired.</p>


404 Notify

It works as presented. When an internal link leads to 404 you get an email alert. 

Job well done

Get a notification whenever a 404 is encountered on your web site.

impression11

ethanjim

<p>WP Browser Compatibility Checker adds minimum browser comptibility settings to allow the administrator to define which browsers and versions will provide the optimum experience.</p>
<p>When someone browsing the website is not using the minimum requrired browser version they will be notified that their experience on the website may not be as good as it could be.</p>
<p>If the person browsing the website closes the notice they will not see it again for 3 days.</p>


WP Browser Compatibility Checker

Provides WordPress with a minimum browser compatibility setting. If the end user is not using a compatible browser they are warned.

404 Notify vs WP Browser Compatibility Checker