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).

Duck Dev

Joel James

Loggedin is a lightweight WordPress plugin that lets you easily limit the number of simultaneous active sessions a user can have. This is a crucial feature for membership sites, online courses, and other platforms where you need to prevent users from sharing their accounts.
<h3>🎁 Features</h3>
<ul>
<li>Set Global Limits: Define a maximum number of concurrent logins for all users.</li>
<li>Flexible Login Behavior: Choose to either block new logins when the limit is reached or automatically log out the oldest session to allow a new one.</li>
<li>Prevent Account Sharing: By limiting sessions, you can effectively stop users from sharing their login credentials with others.</li>
<li>Admin Control: Easily force log out a user from the admin dashboard, giving you full control over active sessions.</li>
<li>Developer-Friendly: The plugin is built with a hook-based architecture, making it highly customizable and extensible for developers.</li>
</ul>
<h3>📦 Addons</h3>
Enhance LoggedIn’s functionality with these simple yet powerful <a href="https://duckdev.com/addons/loggedin/" rel="nofollow ugc">add-ons</a>.
<ul>
<li>
<a href="https://duckdev.com/addon/limit-per-user/" rel="nofollow ugc">Limit Per User</a>: For more granular control, the Limit Per User addon allows you to set specific login limits for individual users, overriding the global settings. This is perfect for offering different tiers of access or special privileges.
</li>
<li>
<a href="https://duckdev.com/addon/real-time-logout/" rel="nofollow ugc">Real-time Logout</a>: This add-on ensures a truly seamless experience by checking for logouts in real time. When a user’s session is terminated in the background due to a login limit, the add-on will automatically refresh their page, instantly restricting access.
</li>
</ul>
<h3>🐛 Bug Reports</h3>
Found a bug? We welcome your bug reports! Please report any issues directly on the <a href="https://github.com/Joel-James/loggedin/issues" rel="nofollow ugc">Loggedin GitHub repository</a>.
Please note: GitHub is for bug reports and development-related issues only. For support, please use the WordPress.org support forums.

Loggedin – Limit Concurrent Sessions

Good Plugin

Good

Lightweight plugin that limits an account to a specific number of concurrent logins.

Clear Logout vs Loggedin – Limit Concurrent Sessions