What are third-party cookies?

Third-party cookies are cookies set by a third party i.e. a domain other than the one you are visiting. These cookies are set by third-party applications and service providers used by websites for functionalities like social media buttons, chat popups, videos and so on. Third-party cookies are also set by Ad tech platforms that display ads on a website that you are visiting.

Third-party cookies, also known as tracking cookies are used for advertising, retargeting, analytics and cross-site user tracking. Advertisers have been using third-party cookies to collect data and target relevant ads for audiences across the web.