gTLDs, or generic Top-Level Domains, are a category of top-level domains in the Domain Name System (DNS) that are not tied to a specific country or geographic location. These domains are often used for various purposes, including commercial, organizational, or personal websites, and they include familiar extensions like .com, .org, and .net, as well as newer options such as .app and .tech. The emergence of gTLDs has transformed the domain registration landscape, providing more choices for individuals and businesses when establishing their online presence.