All TLDs / .cba

What is .cba?

The short answer
.cba is a brand top-level domain, operated by COMMONWEALTH BANK OF AUSTRALIA. It's a “dot-brand” registry (ICANN Spec 13) — reserved for the operator's own use, so it isn't open for the public to register. It's live in the official IANA DNS root zone.
Type
Brand (dot-brand)
Registration
Closed (brand)
In DNS root
Yes
Operator
COMMONWEALTH BANK OF AUSTRALIA

Source: IANA root zone database, checked October 18, 2026.

Is .cba a real domain extension?

Yes — .cba is a real top-level domain. It's present in the official IANA DNS root zone, which is the authoritative list of every live TLD on the internet.

Who runs .cba?

.cba is operated by COMMONWEALTH BANK OF AUSTRALIA, per the IANA root database.

What is .cba used for?

.cba is a dot-brand registry — it's reserved for COMMONWEALTH BANK OF AUSTRALIA and isn't used for third-party websites.

Can anyone register a .cba domain?

No. .cba is a closed brand registry, so it isn't available for public registration. A registrar search will confirm the current policy for any specific name.