This is a reference implementation for developers who need to add licensing to their custom-built extensions for content management systems. It demonstrates how to integrate with a third-party licensing service to restrict plugin usage to specific domains, a common requirement for selling premium add-ons.

• Site-Locked Licensing: The core feature ties a license key to a single domain, preventing unauthorized distribution or use on unregistered sites.
• Practical Code Example: Serves as a functional template, providing the essential code structure for license validation within a plugin's settings area.
• Configurable Policy: The underlying licensing policy can be adapted; you can adjust settings like the number of allowed domains or switch to a floating license model based on your needs.
• Local Development Ready: Includes a pre-configured test key for validating the setup on a local development environment, simplifying initial testing.
• Integration Foundation: While not a complete production solution, it handles the fundamental API calls and logic, allowing developers to focus on adding error handling and custom activation flows.