PluginRx

Simple Maintenance Redirect allows site administrators to enable maintenance mode by redirecting visitors to one of your specified pages (without header and footer) or an external URL instead of complicating things with all kinds of confusing settings. Logged-in administrators can still access the site normally, ensuring a seamless workflow while updates are made.
Features:
<ul>
<li>Custom Maintenance Page: Redirects visitors to a selected WordPress page while the site is in maintenance mode.</li>
<li>Maintenance Page Modifications: Automatically hides the header and footer on the maintenance page and adds a <code>maintenance-mode</code> class to the body element for further customization.</li>
<li>External Redirect Option: Redirect to an external URL instead of a WordPress page if needed.</li>
<li>Admin Bypass: Logged-in administrators can continue working on the site without redirection.</li>
<li>Developer Hook: Modify rules for when a user should be redirected.</li>
</ul>
How It Works:
<ul>
<li>Create and publish a page with your custom maintenance message.</li>
<li>Go to Settings > General and choose a Maintenance Mode Page or enter an External URL.</li>
<li>When enabled, visitors will be redirected to the selected page or URL. Logged-in administrators can still access the site.</li>
<li>The plugin does not affect the login page, REST API, or JSON endpoints.</li>
</ul>
This plugin is great for “coming soon” pages, staging site protection, design previews, or any situation where you need to hide the main site while keeping access for yourself.
<h3>Demo</h3>
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Simple Maintenance Redirect

Easily redirect visitors to a maintenance mode page or external URL while keeping access for logged-in administrators.

Jonas Hjalmarsson

Version 1.5.0 is a recommended security update for all existing users. It blocks JavaScript injection on the Under Construction page, hardens the bypass cookie (Secure/HttpOnly/SameSite), tightens IP-whitelist validation, and fixes silent breakage with WP-CLI, cron, and the REST API. The plugin’s behavior and settings are unchanged — existing setups upgrade in place. See the changelog for the full list.
Add a really simple Under Construction page to your website by enabling this plugin. Use IP whitelisting and a secret URL to grant access to selected users without logging in.
Go to the settings page in Settings > Really Simple Under Construction. Enable by checking the checkbox. The Under Construction page is only visible to visitors who are not logged in. You can optionally configure:
<ol>
<li>The Under Construction page itself — paste any HTML (DOCTYPE, <style>, <body> etc. are supported, scripts are stripped).</li>
<li>A secret word that lets you bypass the page via a URL like <code>?yoursecret</code>. A cookie is then stored so the same browser keeps access.</li>
<li>The lifetime of that cookie, in days.</li>
<li>A list of IP addresses to whitelist for users and services that should always see the real site.</li>
</ol>

Really Simple Under Construction Page

Hide your site behind a really simple Under Construction page. Bypass with a secret-word URL or an IP whitelist for testing.

Simple Maintenance Redirect vs Really Simple Under Construction Page