.ag is the Internet country code top-level domain (ccTLD) for Antigua and Barbuda. As of 2021 the .ag CcTLD is maintained by the UHSA School of Medicine.
Registrations can be made at the second level directly beneath .ag, or at the third level beneath:
There are no restrictions on who can register.
In addition to its original intended use as a country code, the .ag domain has been marketed for use for agriculture-related sites, and for sites referencing the atomic symbol for silver, Ag.
It also has a potential use for other domain hacks for English words that end in -ag. The Heritage Foundation uses .ag for URL shortening (herit.ag), as well as The Association of Former Students of Texas A&M University (tx.ag).
, abbreviated AG, is a German term that refers to a corporation that is limited by shares, i.e. owned by shareholders, and may be traded on a stock market.
The term is used in Germany, Austria, and Switzerland, but not Liechtenstein or Luxembourg.
A German court (5. Zivilsenat des Oberlandesgerichtes Hamburg) ruled in July 2004 that a .ag domain may only be registered by an , and then only by an AG that has the same name as the domain.
For example, a company with shareholders in Germany having the name X AG may not register as y.ag.
The newspaper Sermitsiaq uses the TLD since its merger with the paper Atuagagdliutit/Grønlandsposten, which was marketed as AG as an abbreviation of its combined Greenlandic and Danish names, thus implying a continuation of its identity.