What is .tdk?
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 .tdk names for sale at any registrar.
.tdk entered the DNS root zone on June 7, 2016, 10 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, .tdk is served by 6 authoritative name servers, every one of them reachable over IPv6. It is also DNSSEC-signed: the root zone carries a DS record for .tdk, which lets validating resolvers check its answers cryptographically. Registration data is published over RDAP and WHOIS (the WHOIS server is whois.nic.tdk).
.tdk FAQ
What country is .tdk?
None. .tdk is a generic top-level domain, so it isn't tied to any country.
Who owns the .tdk domain extension?
TDK Corporation operates .tdk as its registry, under a registry agreement with ICANN.
When was .tdk created?
.tdk was delegated to the DNS root zone on June 7, 2016.
Is .tdk a valid domain?
Yes. .tdk is an active top-level domain in the DNS root zone, delegated in 2016, so .tdk addresses work in every browser.
Can I buy a .tdk domain?
No. .tdk is a brand TLD under ICANN Specification 13, so names are reserved for TDK Corporation.
Is .tdk DNSSEC-signed?
Yes, the root zone holds a DS record for .tdk.
Sources
Data from IANA root zone version 2026102000. Last changed May 11, 2024. Spotted something wrong? Tell us.
