.gov is a top-level domain (TLD) that is specifically reserved for the use of governmental entities in the United States at the federal, state, and local levels.The .gov TLD is managed by the General Services Administration (GSA), which operates under the U.S. federal government. This means that only verified government organizations can register a .gov domain name.Examples include domains like www.whitehouse.gov or www.fbi.gov. These domains are highly trusted because they’re exclusively used by government institutions, ensuring a high level of authenticity and credibility.