Vitalii Kiiko

(Eng) Adds a “Maintenance Mode” page to your site (sending a “503 Service Unavailable” status). Includes MailChimp mail subscriptions.
(Ukr) Плагін додає сторінку-заглушку типу “На реконструкції” (надсилається статус “503 Сервіс недоступний”). Включає форму підписки на ел. пошту з допомогою MailChimp.
<a href="http://demo.uni-theme.net/" rel="nofollow ugc">Live demo!</a>
Features:
<ul>
<li>Used custom fonts with cyrillyc characters</li>
<li>Social service integration</li>
<li>MailChimp e-mail subscription form</li>
<li>2 themes available</li>
<li>Custom logo</li>
</ul>

Uni-theme Maintenance Mode

Adil Rafeeque

CleanLite Under Construction & Countdown is a lightweight plugin that shows a professional maintenance page to visitors while you work on your site.
Logged-in users (administrators and editors) see the full site normally, allowing you to work on content and design, while visitors see a clean, branded “coming soon” page.
Main Features: 
* Fully Customizable: Change fonts, colors (heading, text, timer, overlay), and timer styles. 
* Mobile Responsive: Optimized layout looks great on all devices. 
* Branded: Upload your own Logo and Background image. 
* Countdown: Specialized Date & Time picker to show exactly when you launch. 
* Social Icons: Easily link to your Facebook, X (Twitter), and Instagram. 
* SEO Friendly: Sends proper 503 Service Unavailable headers to search engines. 
* Lightweight: Minimal code, no heavy frameworks.

CleanLite Under Construction & Countdown

A branded under construction page with a countdown timer, custom colors, and fonts. Optimized for CleanLite but works with any theme.

Uni-theme Maintenance Mode vs CleanLite Under Construction & Countdown