Ruurd de Wind

What you can expect from this plugin:
<ul>
<li>When this plugin is active, your website can not be crawled or visited without loggin in first.</li>
<li>When you are running an environment that needs to be shielded from the outside, this could be the solution.</li>
<li>When this plugin is deactivated it does not leave any file or data behind.</li>
<li>Clean, fast and safe solution for redirecting your visitors to the standard WordPress login screen.</li>
</ul>

Login First

This plugin makes users login first before they can see your website. Real handy when you are developing a site or just want to to shield it from sear …

Julio Potier

Grégory Viguier

With this plugin you can now add a real log in/logout item menu with autoswitch when user is logged in or not. 
Nonce token is present on logout item. 
2 titles, one for ‘log in’ and one for ‘logout’ can be set up. 
Also, you can set the redirecion page you want, just awesome.

Login Logout Menu

This plugin (still) works great.

However be aware that it's not compatible with PHP 8 or newer, the latest PHP version this plugin will work with is 7.4. This is due to its use of create_function, which has been deprecated since PHP 7.2 and removed as of PHP 8. This should be replaced with an anonymous function, which is easy enough. But I haven't tested this myself, so I don't know if that's the only incompatibility with PHP 8+.

Works great, but...

You can now add a correct login & logout link in your WP menus.

Login First vs Login Logout Menu