.mtr
.mtr is a brand extension, run by MTR Corporation Limited since 2015. Only MTR Corporation Limited, its affiliates and trademark licensees can register .mtr names; they are not for sale to the public.
| Type | Brand |
|---|---|
| Registry operator | MTR Corporation Limited |
| Who can register | Brand owner only Brand extension: only the registry operator, its affiliates and trademark licensees register names. |
| In the root zone since | 7 October 2015 |
| DNSSEC | Signed |
| RDAP server | https://whois.nic.mtr/rdap/ |
| WHOIS server | whois.nic.mtr |
| IANA record | iana.org/domains/root/db/mtr |
Look up a .mtr domain
The .mtr registry publishes registration data over RDAP. The free domain report reads it and shows a .mtr domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
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 Something out of date?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 .mtr extension?
MTR Corporation Limited is the registry operator for .mtr. The registry keeps the list of every .mtr name; registrars sell the names to the public.
Can anyone register a .mtr domain?
Only MTR Corporation Limited, its affiliates and trademark licensees can register .mtr names; they are not for sale to the public.
When was .mtr created?
.mtr was added to the DNS root zone on 7 October 2015, according to IANA.
How do I look up who owns a .mtr domain?
The .mtr registry publishes registration data over RDAP at https://whois.nic.mtr/rdap/ and over WHOIS at whois.nic.mtr. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .mtr signed with DNSSEC?
Yes. The .mtr zone is signed, so a .mtr domain can turn on DNSSEC once its registrar adds a DS record.