Similar to トップレベルドメイン

Geographic top-level domain

List of Internet top-level domains

.example

.google

.invalid

.local

.localhost

.test

Pseudo-top-level domain

Identifier

Three-letter acronym

Bibcode

CURIE

E.164

European Community number

Electronic Product Code

EPCglobal

Extensible Resource Identifier

FourCC

GS1

Globally unique identifier

I-name

International Bank Account Number

IETF language tag

IMO number

International Chemical Identifier