Tenseg LLC

This plugin will look at another site you specify whenever a 404 error occurs and check if the requested path is there. If the path is found, it will redirect there rather than show the WP 404 page.
This is particularly useful to silently redirect over to an archival copy of a website when a major redesign has been done.
More information about this plugin can be found <a href="https://www.tenseg.net/software/404sitechecker" rel="nofollow ugc">on its homepage</a>.

404 Site Checker

When you get a 404 this will check the requested path at a site you define and redirect there if found rather than showing the 404.

Leap Spark

Ferret is a simple wrapper for the Sentry PHP and JavaScript SDKs. It will catch all PHP errors, as well as JavaScript errors if the option is switched on. It utilizes the legacy PHP library by Sentry intentionally, in an effort to maximize compatibility. The newest SDK requires PHP^7.1 whereas the legacy requires minimum of 5.6
There are four settings that you can adjust.
<ul>
<li>The <code>DSN</code> – Your DSN key, this is required</li>
<li><code>Project ID</code> – The project key, this is also required</li>
<li><code>Enable JavaScript Logging</code> – Enable logging of JavaScript errors</li>
<li><code>Ignore WP Core Errors</code> – Prevent sending events to Sentry that originate from WordPress core (wp-admin, wp-includes)</li>
<li><code>Debug Environment</code> – Switch the Sentry environment to <code>Debug</code>, turning this off puts the environment to <code>Production</code></li>
</ul>
All three are accessible on the plugin settings page located in the <code>Settings -> Ferret Settings</code> page.
In the future we will add the ability to selectively ignore specific themes or plugins in a convenient way. We would also like to expose an internal API that can be used by other plugins/themes to capture errors or add context.

Ferret

Ferret is a simple wrapper for the Sentry PHP and JavaScript SDKs. It will catch all PHP errors, as well as JavaScript errors if the option is switche …

404 Site Checker vs Ferret