All TLDs / .sanofi

What is .sanofi?

The short answer
.sanofi is a brand top-level domain, operated by Sanofi. 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
Sanofi

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

Is .sanofi a real domain extension?

Yes — .sanofi 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 .sanofi?

.sanofi is operated by Sanofi, per the IANA root database.

What is .sanofi used for?

.sanofi is a dot-brand registry — it's reserved for Sanofi and isn't used for third-party websites.

Can anyone register a .sanofi domain?

No. .sanofi 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.