.tdk
.tdk is a brand extension, run by TDK Corporation since 2016. Only TDK Corporation, its affiliates and trademark licensees can register .tdk names; they are not for sale to the public.
| Type | Brand |
|---|---|
| Registry operator | TDK Corporation |
| 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 June 2016 |
| DNSSEC | Signed |
| RDAP server | https://rdap.nic.tdk/ |
| WHOIS server | whois.nic.tdk |
| IANA record | iana.org/domains/root/db/tdk |
Look up a .tdk domain
The .tdk registry publishes registration data over RDAP. The free domain report reads it and shows a .tdk 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 Something out of date?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 .tdk extension?
TDK Corporation is the registry operator for .tdk. The registry keeps the list of every .tdk name; registrars sell the names to the public.
Can anyone register a .tdk domain?
Only TDK Corporation, its affiliates and trademark licensees can register .tdk names; they are not for sale to the public.
When was .tdk created?
.tdk was added to the DNS root zone on 7 June 2016, according to IANA.
How do I look up who owns a .tdk domain?
The .tdk registry publishes registration data over RDAP at https://rdap.nic.tdk/ and over WHOIS at whois.nic.tdk. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .tdk signed with DNSSEC?
Yes. The .tdk zone is signed, so a .tdk domain can turn on DNSSEC once its registrar adds a DS record.