설명
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
스크린샷
Settings page for configuring maintenance mode. 
Default theme preview.
설치
- 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.
FAQ
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How do I enable maintenance mode?
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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.
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Can I exclude specific pages or posts?
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Yes, in the settings page, under “Advanced Settings,” you can select pages and posts to exclude from maintenance mode.
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How do I customize the maintenance page?
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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.
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Does the contact form support reCAPTCHA?
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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.
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Can I preview the maintenance page without enabling it?
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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.
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How can I support the developer?
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You can support the developer by donating via the PayPal.me link provided in the plugin’s admin settings page under “About the Author”.
후기
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기여자 & 개발자
변경이력
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.