NDT Maintenance
Easily set up a customizable maintenance page for your WordPress site with countdown, progress bar, contact form, and social links.
Consider an alternative
NDT Maintenance shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 1 year ago, and scores 30/100 on our health check.
- Small user base (<10 active installs)
- Very few reviews so far
- No update in over a year
- Only tested up to WordPress 6.8 (latest is 7.1)
How does it stack up?
Side-by-side on installs, updates, ratings & support
Daily downloads
Download spikes usually follow a new release — each site that auto-updates counts as a download.
Rankings
Where NDT Maintenance stands todayWordPress.org search rankings
Live position in the plugin search, top 100| Keyword | Position |
|---|---|
| coming soon | >100 |
| maintenance | >100 |
| under construction | >100 |
| wordpress maintenance | >100 |
About NDT Maintenance
From the official readme · v1.0.1Description
NDT Maintenance is a lightweight plugin that helps you create a customizable maintenance page for your WordPress site. It allows you to display a professional “Under Maintenance” or “Coming Soon” page while your site is being worked on, with features like a countdown timer, progress bar, contact form, and social media links.
Key features include:
- Enable/disable maintenance mode with a toggle switch.
- Multiple pre-designed themes (Default, Nova) to choose from.
- Customizable title, heading, description, and footer.
- Optional contact form with reCAPTCHA integration.
- Countdown timer and progress bar to show site progress.
- Custom logo, background image, and color options.
- Exclude specific pages and posts from maintenance mode.
- Social media links integration.
- Google Analytics tracking support.
- Custom CSS for advanced styling.
Developed and maintained by Tony Nguyễn, this plugin is designed to provide a seamless maintenance experience and will be supported as long as necessary.
External Services
This plugin integrates with the following third-party services to provide functionality. Below is a detailed explanation of each service, including what data is sent, why, and links to their terms of service and privacy policies.
Google reCAPTCHA
– Purpose: Used to prevent spam submissions on the contact form displayed during maintenance mode.
– Data Sent: When a user submits the contact form, the plugin sends the user’s reCAPTCHA response token and IP address to Google’s reCAPTCHA API (https://www.google.com/recaptcha/api/siteverify) for verification.
– When Data is Sent: Data is sent only when the contact form is enabled and a user submits it.
– Terms of Service: https://www.google.com/intl/en/policies/terms/
– Privacy Policy: https://www.google.com/intl/en/policies/privacy/
Google Analytics
– Purpose: Optionally tracks user interactions on the maintenance mode page.
– Data Sent: When enabled, the plugin loads the Google Analytics script (https://www.googletagmanager.com/gtag/js), which may collect data such as page views, user interactions, and device information as per Google’s policies.
– When Data is Sent: Data is sent only if a Google Analytics ID is configured in the plugin settings and the maintenance mode page is loaded.
– Terms of Service: https://www.google.com/analytics/terms/
– Privacy Policy: https://www.google.com/intl/en/policies/privacy/
Pinterest
– Note: The plugin includes a settings field for entering a Pinterest profile URL, which is displayed as a social media link on the maintenance page. No data is sent to Pinterest unless explicitly configured by the site administrator.
– Terms of Service: Not applicable.
– Privacy Policy: Not applicable.
Support
For support, please contact me via:
– Email: admin@ndtan.net
– Telegram: @nguyenduytan
– Website: https://nguyenduytan.com
Installation
- Upload the
ndt-maintenancefolder to the/wp-content/plugins/directory. - Activate the plugin through the ‘Plugins’ menu in WordPress.
- Go to NDT Solutions > NDT Maintenance in the admin dashboard to configure settings.
Frequently asked questions
How do I enable maintenance mode?
Go to NDT Solutions > NDT Maintenance, toggle the “Enable Maintenance Mode” switch, and save changes. You can also toggle it directly from the WordPress admin bar.
Can I exclude specific pages or posts?
Yes, in the settings page, under “Advanced Settings,” you can select pages and posts to exclude from maintenance mode.
How do I customize the maintenance page?
Go to NDT Solutions > NDT Maintenance to choose a theme, set a custom logo, background image, colors, and add features like a countdown timer, progress bar, or contact form.
Does the contact form support reCAPTCHA?
Yes, you can enable a contact form with reCAPTCHA integration. You’ll need to provide your reCAPTCHA Site Key and Secret Key in the settings.
Can I preview the maintenance page without enabling it?
Yes, when maintenance mode is enabled, a “Preview” button will appear in the settings page, allowing you to view the maintenance page without affecting visitors.
How can I support the developer?
You can support the developer by donating via the PayPal.me link provided in the plugin’s admin settings page under “About the Author”.
Changelog
This version standardizes the plugin for WordPress.org submission, improves security, and enhances the user interface. Please update to ensure compatibility and a better experience.
1.0.1
- New: Safe “Preview” flow – the preview button is always visible in the settings page and uses a nonce-protected URL so admins can preview changes even when maintenance mode is OFF.
- New: Background image fallback – if no background is set, the theme falls back to /themes/default/assets/img/bg_default.jpg.
- New: Stricter asset isolation – the maintenance template dequeues theme/other plugin assets and prints only this plugin’s CSS/JS to prevent theme elements from leaking into the maintenance page.
- Update: Block WordPress Speculative Loading on the maintenance page to avoid extra head/footer output.
- Update: Consistent versioning – all enqueued assets now use the plugin version constant for cache busting.
- Update: Logo rendering keeps proper aspect ratio inside a square box sized by “Logo Width”.
- Fix: Contact form init – ensure jQuery is printed before plugin scripts; form renders only when reCAPTCHA keys are provided.
- Fix: Prevent plugin frontend assets from loading when maintenance mode is OFF.
- Fix: 503 status header and no-cache headers for non-preview maintenance responses.
- Security/Hardening: Nonce + capability checks for preview; sanitize/escape output on the maintenance template and admin.
- Compatibility: Tested with WordPress 6.8; Requires PHP 7.0.
1.0.0
- Initial release for WordPress.org submission:
- Standardized code to comply with WordPress.org guidelines.
- Moved inline CSS/JS to separate files.
- Added nonce and permission checks for security.
- Improved settings page layout and toggle switch design.
- Enhanced theme selection with preview images.
- Added support for reCAPTCHA, countdown, progress bar, and social links.
Screenshots
For developers
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Best NDT Maintenance alternatives
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FAQ
NDT Maintenance: quick answers
Straight answers, pulled from live WordPress.org data.
Live data from WordPress.org · checked Oct 6, 2026
Is NDT Maintenance free?
Yes. NDT Maintenance is free to download and use from the official WordPress.org plugin directory.
Is NDT Maintenance safe to use in 2026?
NDT Maintenance shows warning signs in 2026 — compare the alternatives below before installing. Was last updated 1 year ago, and scores 30/100 on our health check.
How many websites use NDT Maintenance?
NDT Maintenance is active on <10 WordPress websites and has been downloaded 555 times since it launched in June 2025. It was downloaded 41 times in the last 30 days.
Does NDT Maintenance work with WordPress 7.1?
NDT Maintenance is officially tested up to WordPress 6.8.10, while the latest release is 7.1.2. It may still work, but try it on a staging site first.
What PHP version does NDT Maintenance need?
NDT Maintenance requires PHP 7.0 or higher. Most hosts run PHP 8.x today, so it works on any modern WordPress hosting.
When was NDT Maintenance last updated?
The latest version, 1.0.1, was released on August 25, 2025 (1 year ago).
Who makes NDT Maintenance?
NDT Maintenance is developed and maintained by Tony Nguyen.
What are the best alternatives to NDT Maintenance?
The most popular alternatives to NDT Maintenance are Maintenance (1M+ installs), LightStart (400K+ installs) and CMP (200K+ installs).
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