Global Privacy Control (GPC) is a technical specification that enables users to automatically communicate their privacy preferences to websites and online services. By activating GPC in a browser or device, users can send a signal indicating that they do not want their personal data to be sold or shared with third parties. This standard is designed to help users exercise their rights under privacy laws such as the California Consumer Privacy Act (CCPA) and the General Data Protection Regulation (GDPR). Websites receiving the GPC signal are expected to honor these preferences, providing a streamlined and user-friendly way to manage online privacy without the need to adjust settings on each site individually.