Adtech, short for advertising technology, refers to the software and tools that enable companies to plan, buy, sell, manage, and analyze digital advertising campaigns. It automates the process of targeting audiences, bidding for ad space, and displaying ads across websites, social media, and apps. Adtech includes platforms like demand-side platforms (DSPs), supply-side platforms (SSPs), ad exchanges, and data management platforms (DMPs), all working together to make online advertising more efficient and data-driven. While adtech helps businesses reach the right audiences at the right time, it also raises privacy concerns due to the extensive data collection involved.