.mlb
.mlb is a brand extension, run by MLB Advanced Media DH, LLC since 2016. Only MLB Advanced Media DH, LLC, its affiliates and trademark licensees can register .mlb names; they are not for sale to the public.
| Type | Brand |
|---|---|
| Registry operator | MLB Advanced Media DH, LLC |
| Who can register | Brand owner only Brand extension: only the registry operator, its affiliates and trademark licensees register names. |
| In the root zone since | 25 May 2016 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nic.mlb/ |
| WHOIS server | None listed |
| IANA record | iana.org/domains/root/db/mlb |
Look up a .mlb domain
The .mlb registry publishes registration data over RDAP. The free domain report reads it and shows a .mlb domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
More extensions from MLB Advanced Media DH, LLC
| .baseball | Generic · 2016 |
New to extensions? The guide to how domain extensions work covers generic, country-code and brand extensions. For who sells extensions in general, see the list of domain registrars.
Sources: the IANA root zone database and the ICANN list of generic extensions (refreshed 2026-10-24). Something out of date? Tell us.
Frequently asked questions
Who runs the .mlb extension?
MLB Advanced Media DH, LLC is the registry operator for .mlb. The registry keeps the list of every .mlb name; registrars sell the names to the public.
Can anyone register a .mlb domain?
Only MLB Advanced Media DH, LLC, its affiliates and trademark licensees can register .mlb names; they are not for sale to the public.
When was .mlb created?
.mlb was added to the DNS root zone on 25 May 2016, according to IANA.
How do I look up who owns a .mlb domain?
The .mlb registry publishes registration data over RDAP at https://rdap.nic.mlb/. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .mlb signed with DNSSEC?
Yes. The .mlb zone is signed, so a .mlb domain can turn on DNSSEC once its registrar adds a DS record.