.ar为阿根廷国家和地区顶级域（ccTLD）的域名。

英文释义：

.ar is the Internet country code top-level domain (ccTLD) for Argentina. It is administered by NIC Argentina.

Second Level Domains
.com.ar (general purpose)
.edu.ar (educational entities)
.gob.ar (government entities, homonym for .gov.ar)[1]
.gov.ar (government entities)
.int.ar (international organizations)
.mil.ar (military forces)
.net.ar (locally based ISPs)
.org.ar (non-profit organizations)
.tur.ar (officially registered tourism agencies)