All TLDs / .uol

What is .uol?

The short answer
.uol is a brand top-level domain, operated by UBN INTERNET LTDA. 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
UBN INTERNET LTDA

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

Is .uol a real domain extension?

Yes — .uol 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 .uol?

.uol is operated by UBN INTERNET LTDA., per the IANA root database.

What is .uol used for?

.uol is a dot-brand registry — it's reserved for UBN INTERNET LTDA. and isn't used for third-party websites.

Can anyone register a .uol domain?

No. .uol 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.