What is .mtr?
Brand TLDs operate under Specification 13 of ICANN's registry agreement. It lets a trademark owner keep every second-level name for itself, so you won't find .mtr names for sale at any registrar.
.mtr entered the DNS root zone on October 7, 2015, 11 years ago. It came out of ICANN's New gTLD Program, the 2012 application round that grew the root from 22 generic TLDs to well over a thousand.
On the technical side, .mtr is served by 4 authoritative name servers, every one of them reachable over IPv6. It is also DNSSEC-signed: the root zone carries a DS record for .mtr, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.mtr).
.mtr FAQ
What country is .mtr?
None. .mtr is a generic top-level domain, so it isn't tied to any country.
Who owns the .mtr domain extension?
MTR Corporation Limited operates .mtr as its registry, under a registry agreement with ICANN.
When was .mtr created?
.mtr was delegated to the DNS root zone on October 7, 2015.
Is .mtr a valid domain?
Yes. .mtr is an active top-level domain in the DNS root zone, delegated in 2015, so .mtr addresses work in every browser.
Can I buy a .mtr domain?
No. .mtr is a brand TLD under ICANN Specification 13, so names are reserved for MTR Corporation Limited.
Is .mtr DNSSEC-signed?
Yes, the root zone holds a DS record for .mtr.
Sources
Data from IANA root zone version 2026102000. Last changed December 19, 2025. Spotted something wrong? Tell us.
