All TLDs / .tiaa

What is .tiaa?

The short answer
.tiaa is a brand top-level domain, operated by Teachers Insurance and Annuity Association of America. 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
Teachers Insurance and Annuity Association of America

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

Is .tiaa a real domain extension?

Yes — .tiaa 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 .tiaa?

.tiaa is operated by Teachers Insurance and Annuity Association of America, per the IANA root database.

What is .tiaa used for?

.tiaa is a dot-brand registry — it's reserved for Teachers Insurance and Annuity Association of America and isn't used for third-party websites.

Can anyone register a .tiaa domain?

No. .tiaa 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.