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manifest / utilities / maintenance-scheduler

Maintenance Scheduler

Professional WordPress maintenance mode plugin with scheduled activation, countdown timer, custom branding, IP whitelist, and REST API safe mode. Simple setup, powerful features.

by CVInfotech · github.com/cvinfotech/maintenance-scheduler · website

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Install

No release zip yet. The repository archive installs, but the folder name will carry the branch suffix and updates will not flow:

wp plugin install https://github.com/cvinfotech/maintenance-scheduler/archive/refs/heads/main.zip

Readme

Maintenance Scheduler

A professional WordPress plugin that enables scheduled maintenance mode with advanced features like countdown timer, custom branding, IP whitelisting, and more.

Screenshots

Admin Settings Page

Admin Settings

Complete admin interface with all configuration options available at Settings → Maintenance Scheduler.

Maintenance Page (Frontend)

Maintenance Page

Professional maintenance page with logo, countdown timer, custom background, and responsive design.

Features

Core Features

  • Enable/Disable maintenance mode with a single click
  • Schedule start and end date/time for automatic activation
  • Custom maintenance message
  • Real-time countdown timer
  • Fully responsive design

Appearance

  • Custom logo upload from Media Library
  • Background color picker
  • Background image upload
  • Modern, professional UI

Access Control

  • Admin bypass (logged-in admins see live site)
  • IP whitelist support (multiple IPs)
  • Exclude specific pages from maintenance
  • Smart user detection

API & Advanced

  • REST API safe mode (keeps /wp-json/* working)
  • AJAX safe mode (keeps AJAX requests working)
  • Proper HTTP 503 status code
  • SEO-friendly Retry-After header

Quality

  • Follows WordPress Coding Standards
  • Translation ready (i18n support)
  • Clean uninstall (removes all plugin data)
  • Security hardened (sanitization, escaping, nonces)

Installation

Method 1: WordPress Admin Upload

  1. Go to Plugins → Add New → Upload Plugin
  2. Choose the plugin ZIP file
  3. Click Install Now
  4. Click Activate

Method 2: FTP Upload

  1. Upload maintenance-scheduler.php to /wp-content/plugins/
  2. Go to WordPress Admin → Plugins
  3. Click Activate for Maintenance Scheduler

Method 3: Git Clone

cd wp-content/plugins/
git clone https://github.com/yourusername/maintenance-scheduler.git

Configuration

After activation, go to Settings → Maintenance Scheduler to configure:

Setting Description
Enable Maintenance Mode Turn maintenance mode on/off
Start Date & Time When maintenance should begin
End Date & Time When maintenance should end (optional)
Maintenance Message Text displayed to visitors
Show Countdown Timer Display remaining time
Logo Upload custom logo
Background Color Choose page background color
Background Image Upload full-screen background
Allow Admins to Bypass Admins see live site
Whitelist IP Addresses IPs that bypass maintenance
Exclude Pages Pages accessible during maintenance
Exclude REST API Keep REST API functional
Exclude AJAX Requests Keep AJAX functional

Usage Examples

Scheduled Maintenance Window

Enable: Yes
Start: 2026-01-15, 02:00 AM
End: 2026-01-15, 06:00 AM
Message: "Server maintenance 2-6 AM. We will be back shortly."
Show Countdown: Yes
Admin Bypass: Yes

Client Access During Maintenance

Enable: Yes
Admin Bypass: Yes
Whitelist IPs: 203.0.113.50
Message: "Site under maintenance. Your IP has access."

Mobile App + Web Maintenance

Enable: Yes
Exclude REST API: Yes
Exclude AJAX: Yes
Message: "Web maintenance. Mobile app continues working."

Requirements

  • WordPress 5.0 or higher
  • PHP 7.2 or higher
  • MySQL 5.7 or higher

File Structure

maintenance-scheduler/
├── maintenance-scheduler.php    Main plugin file
├── uninstall.php                Cleanup on uninstall
├── readme.txt                   WordPress.org readme
├── README.md                    GitHub readme (this file)
├── CHANGELOG.md                 Version history
├── CONTRIBUTING.md              Contribution guidelines
├── LICENSE                      GPL v2 license
├── .gitignore                   Git ignore rules
├── .gitattributes               Git attributes
├── screenshot-1.png             Admin settings screenshot
└── screenshot-2.png             Maintenance page screenshot

Security

This plugin follows WordPress security best practices:

  • All inputs are sanitized using appropriate WordPress functions
  • All outputs are escaped before display
  • Forms are protected with WordPress nonces (CSRF protection)
  • Capability checks ensure only admins can change settings
  • IP addresses are validated before saving
  • No direct database queries (uses WordPress APIs)

Performance

  • Lightweight (~27 KB main file)
  • Minimal database queries
  • No external dependencies
  • Fast maintenance page rendering (pure HTML/CSS)
  • Approximately 1-2ms overhead per page load

Contributing

Contributions are welcome. Please see CONTRIBUTING.md for details.

Ways to contribute:

  • Report bugs by opening an issue
  • Suggest new features
  • Submit pull requests
  • Improve documentation
  • Help with translations

Changelog

See CHANGELOG.md for full version history.

License

This plugin is licensed under the GNU General Public License v2.0 or later. See LICENSE for details.

Author

CVInfotech (Cyber Vision Infotech Pvt. Ltd.)

Services: Custom Web Development, WordPress Development, Mobile App Development, React/Node.js Development, AI Solutions, SEO & Digital Marketing.

Support

For issues, feature requests, or questions:

Show Your Support

If you find this plugin useful:

  • Star this repository
  • Share with others
  • Report bugs
  • Contribute code

Read the full README on GitHub →