.ไทย
.ไทย (xn--o3cw4h in the DNS) is a country-code extension for Thailand, run by Thai Network Information Center Foundation since 2010. Thai Network Information Center Foundation sets who can register .ไทย names; some country codes need a local address, so check its rules before you buy.
| In the DNS | xn--o3cw4h |
|---|---|
| Type | Country code |
| Registry operator | Thai Network Information Center Foundation |
| Country | Thailand |
| Who can register | Set by the registry |
| In the root zone since | 17 August 2010 |
| DNSSEC | Signed |
| RDAP server | https://rdap.thains.co.th |
| WHOIS server | whois.thnic.co.th |
| IANA record | iana.org/domains/root/db/xn--o3cw4h |
Look up a .ไทย domain
The .ไทย registry publishes registration data over RDAP. The free domain report reads it and shows a .ไทย domain's registrar, dates, status and DNS in one place. For the raw record, use the WHOIS lookup.
More extensions from Thai Network Information Center Foundation
| .th | Country code |
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 Something out of date?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 .ไทย extension?
Thai Network Information Center Foundation is the registry operator for .ไทย, the country-code extension for Thailand. The registry keeps the list of every .ไทย name; registrars sell the names to the public.
Can anyone register a .ไทย domain?
Thai Network Information Center Foundation sets who can register .ไทย names; some country codes need a local address, so check its rules before you buy.
When was .ไทย created?
.ไทย was added to the DNS root zone on 17 August 2010, according to IANA.
How do I look up who owns a .ไทย domain?
The .ไทย registry publishes registration data over RDAP at https://rdap.thains.co.th and over WHOIS at whois.thnic.co.th. The free domain report on lemon.domains reads it for you and shows the registrar, dates and status.
Is .ไทย signed with DNSSEC?
Yes. The .ไทย zone is signed, so a .ไทย domain can turn on DNSSEC once its registrar adds a DS record.