olemus
standardne ülataseme domeeninimi .localhost, mis
on reserveeritud silmustuseks;
enamasti teisendatakse IP-aadressiks 127.0.0.1
=
a commonly defined hostname for the loopback interface in most TCP/IP systems

ülevaateid
https://en.wikipedia.org/wiki/Localhost

https://en.wikipedia.org/wiki/.localhost

standard
https://tools.ietf.org/html/rfc6761