Cookie Blocking

The practice of preventing cookies from being stored on a user's device, either through browser settings, privacy extensions, or consent management platforms. Users can block all cookies, only third-party cookies, or specific categories based on their preferences. Modern browsers increasingly offer built-in cookie blocking features, with some browsers like Safari and Firefox blocking third-party tracking cookies by default. From a website operator's perspective, cookie blocking affects functionality that relies on cookies—analytics may be incomplete, advertising may be less effective, and some features may not work properly. Privacy laws require that websites function properly when users block non-essential cookies. Consent management platforms implement cookie blocking by preventing non-consented cookies from loading until permission is granted. The trend toward greater cookie blocking reflects growing privacy awareness and regulatory pressure, pushing the industry toward privacy-friendly alternatives.