Talisa @ Page Authority

<p>Allowed Email Domains gives administrators a simple way to restrict WordPress user accounts to approved email domains.</p>
<p>The plugin is designed for sites where only users from specific organizations, companies, clients, or teams should be added as WordPress users.</p>
<p>Features include:</p>
<ul>
<li>Admin-managed allowed domain list</li>
<li>Standard WordPress registration enforcement</li>
<li>REST API user creation/update enforcement</li>
<li>WooCommerce registration enforcement</li>
<li>Existing User Audit tools</li>
<li>Optional login enforcement</li>
<li>Per-user unauthorized account removal with content reassignment</li>
<li>Multisite-aware protections</li>
<li>Lightweight architecture with no custom database tables</li>
</ul>
<h3>Security Notes</h3>
<p>The plugin includes:</p>
<ul>
<li>Capability checks</li>
<li>Nonce verification (verified before any state-changing logic runs)</li>
<li>Sanitization and escaping</li>
<li>Live revalidation before destructive actions</li>
<li>Current-admin protection</li>
<li>Multisite Super Admin protection</li>
<li>Explicit content reassignment or delete confirmation before user removal</li>
</ul>
<p>Recommended operational practices:</p>
<ul>
<li>Review the Existing User Audit before enabling login blocking</li>
<li>Test custom registration and SSO flows before production rollout</li>
<li>Maintain regular database backups before deleting users</li>
<li>Restrict plugin management access to trusted administrators only</li>
</ul>
<h3>Uninstall</h3>
<p>Deleting the plugin removes its current options:</p>
<ul>
<li><code>pageauth_allowed_domains</code></li>
<li><code>pageauth_audit_log</code></li>
<li><code>pageauth_block_unauthorized_logins</code></li>
</ul>
<p>It also cleans up internal flags, transients, user meta, and any leftover keys from prior plugin versions that used the <code>paad_</code> or <code>aed_</code> prefixes. On multisite, the matching network options are removed as well.</p>


Page Authority – Allowed Domains

Restrict WordPress user accounts to administrator-approved email domains.

Marin Atanasov

<p>WP Hydra has a quite straightforward purpose. Say you have a WordPress site, hosted on example.com. You’ve also purchased example.net and example.org, and you want them to also use the same website (the same installation), but to persist with that particular domain to have a consistent user experience. In other terms, you want your WordPress installation to be resolved and browsed at multiple domains. WP Hydra can help you with this.</p>
<p>Pointing multiple URLs to the same website is a good way to direct traffic to your site from several different domain names. You can accomplish this in two ways: either redirect one of the URLs to your primary domain, or park the domains, which point these domains towards your primary domain.</p>
<p>A redirect occurs when typing a web address in the address bar sends a visitor to another website (or URL), different from the one typed in. If this is your preferred case, then WP Hydra will not be of any need to you.</p>
<p>Parking a domain does the same thing as a redirect, except that the website name shown on the address bar does not change. You can park several domains to the same page. They have to be registered with a valid domain registrar before you can park them. Also, you’ll need to make sure the nameservers are the same as your primary domain (the domain that you are pointing towards).</p>
<p>Once your multiple domains point to the same website, you have to activate the plugin. No additional configuration or setup is required. This will make sure that the css, js, images and links that are leading to the original domain are now leading to the domain that you’re currently viewing. This will assure that the users remain on the site that they’ve originally visited, providing consistent experience.</p>
<h3>Configuration</h3>
<p>You only need to make sure that your multiple domains point to the same hosting, and to the same physical location on your hosting account.</p>
<p>Once this is done, simply install and activate the plugin – no additional configuration is needed.</p>
<h3>Further customization – filters</h3>
<p>If you have some custom content and you want the URLs within it to support multiple domains, you can use the <code>wp_hydra_content</code> filter, like this:</p>
<pre><code>// we assume that you have some content in $content
$content = apply_filters( 'wp_hydra_content', $content );
</code></pre>
<p>If you have some custom URLs somewhere and you want them multiple domains, you can use the <code>wp_hydra_domain</code> filter, like this:</p>
<pre><code>// we assume that you have some content in $content
$url = apply_filters('wp_hydra_domain', $url);
</code></pre>
<h3>Further customization for developers</h3>
<p>Since the <code>$wp_hydra</code> object is global, you can easily unhook any of the default functionality by simply calling <code>remove_action()</code> or <code>remove_filter</code> on it. The following example will remove the WP Hydra behavior of the content, but only for <code>the_content()</code> calls on the archive page:</p>
<pre><code>add_action( 'wp_loaded', 'some_example_here' );
function some_example_here() {
    global $wp_hydra;
    if( is_archive() ) {
        remove_filter( 'the_content', array( $wp_hydra, 'setup_content' ) );
    }
}
</code></pre>


WP Hydra

I had some AJAX issues with WPML and it's sub-domain setup. Thanks to this little gem, everything is working flawlessly (goodbye htaccess lines)!
I simply installed the plugin and the issues disappeared.
Great work!



A real time saver!

I needed a way to make a website accessible from two different domains.

After installing the plugin, everything worked out of the box.

Great work, thanks :)

Works as advertised

Allows one WordPress installation to be resolved and browsed at multiple domains.

Page Authority – Allowed Domains vs WP Hydra