An opt-out cookie is a small piece of data that is stored on a user’s computer or device when they visit a website. Its purpose is to remember the user’s preference to not be tracked or targeted by online advertising. This cookie allows the user to opt-out of personalized ads and helps protect their privacy by preventing their browsing behavior from being collected and used for targeted marketing. Opt-out cookies are often used by advertising networks and websites to comply with privacy regulations and give users control over their online experience. They can be easily deleted or disabled by the user at any time, giving them the power to choose what information is shared about their online activity.