Ayesh Karunaratne

This plugin ensures that when users of your website (including site administrators), the browsers are instructed to clear all residue such as cookies and caches to enhance the security.
<a href="https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Clear-Site-Data" rel="nofollow ugc"><code>Clear-Site-Data</code> HTTP header</a> is sent when a user logs out, which supported browsers will react by removing all existing cookies, cache, and other storage. It will not remove saved passwords, permissions, adblocker rules, and other data that are supposed to be permanent.
This plugin prevents possible security vulnerabilities such as clicking the “Back” button in the browser after logging out revealing the pages that should not have been accessible after logging out. Furthermore, this cleans the browser cache, which prevents accessing authenticated media assets (such as purchased images) from the browser cache of a victim.

Clear Logout

A tiny WordPress plugin to clear all browser data related to the site upon logout (With Clear-Site-Data header).

James Collins

There are 3 shortcodes that can be used:
<pre><code>[logout] - A standard Log Out link, where the user stays on the login screen after being logged out.
[logout_to_home] - A link that logs the user out, and redirects them to your home page.
[logout_to_current] - A link that logs the user out, and redirects them back to the current page/URL.
</code></pre>
Advanced Usage:
All 3 shortcodes all support 3 attributes/parameters:
<pre><code>[logout text="" class="" redirect=""]
</code></pre>
The 3 supported attributes/parameters are:
<pre><code>text=""
</code></pre>
– The text to use for the link anchor text. 
– Default: <code>Log Out</code> 
 class=”” 
– The HTML class(es) to use for the link. Multiple classes should be separated by a space. 
– Default: <code>logout</code> 
 redirect=”” 
– The path/URL to redirect the user to after they are logged out. 
– Default: the WordPress login screen. 
– Note: must be a URL or path on the same domain name as the WordPress website (cannot be an external domain/URL)
Some Examples: 
 [logout text=”Log Off”] – A <code>Log Off</code> link that logs the user out. 
 [logout redirect=”/members/”] – Log the user out, and redirect them to <code>/members/</code>. 
 [logout_to_home text=”Log Off”] – A <code>Log Off</code> link that logs the user out and redirects them to your home page. 
 [logout class=”log-out-link”] – Use a custom CSS/HTML class name for the log out link.
Note: the shortcodes will return nothing/empty if the user isn’t logged in.
This plugin is inspired by the <a href="https://wordpress.org/plugins/logout-button/" rel="ugc">Logout Button plugin by Ben Poland</a>.
If you like, you can <a href="https://github.com/OM4/log-out-shortcode" rel="nofollow ugc">contribute to this plugin on GitHub</a>.

Log Out Shortcode

I was just about to write a plugin like this for myself. This is simple and to the point with just the right number of features.



Wonderfully simple plugin

Easily add a log out link or button to a post or page using a simple shortcode.

Clear Logout vs Log Out Shortcode