.th

---

title: ".th" type: doc version: 1 created: 2026-02-28 author: "Wikipedia contributors" status: active scope: public tags: ["country-code-top-level-domains", "telecommunications-in-thailand", "internet-properties-established-in-1988", "internet-in-thailand"] description: "Internet country code top-level domain for Thailand" topic_path: "engineering" source: "https://en.wikipedia.org/wiki/.th" license: "CC BY-SA 4.0" wikipedia_page_id: 0 wikipedia_revision_id: 0

::summary Internet country code top-level domain for Thailand ::

::data[format=table title="Infobox Top level domain"]

Field	Value
name	.th
image	Logo DotTH domain.svg
introduced	7 September 1988
type	Country code top-level domain
status	Active
registry	THNIC
sponsor	THNIC
intendeduse	Entities connected with Thailand
actualuse	Popular in Thailand
registereddomains	68,036
dateregistereddomains	22 April 2018
refregistereddomains
restrictions	Varying restrictions based on which second-level name registration is within
structure	Registrations are at third level beneath various categories
website	THNIC
dnssec	Yes
::

|name=.th |image=Logo DotTH domain.svg |introduced=7 September 1988 |type=Country code top-level domain |status=Active |registry=THNIC |sponsor=THNIC |intendeduse= Entities connected with Thailand |actualuse=Popular in Thailand | registereddomains=68,036 | dateregistereddomains=22 April 2018 | refregistereddomains= |restrictions=Varying restrictions based on which second-level name registration is within |structure=Registrations are at third level beneath various categories |document= |disputepolicy= |website=THNIC |dnssec=Yes .th is the Internet country code top-level domain (ccTLD) for Thailand.

It is administered by T.H.NIC Co., Ltd. (THNIC), the corporate entity of Thai Network Information Center Foundation.

Registration

Registration of a .co.th domain name is a complicated procedure; for this reason most Thai websites prefer to use a .com name. In order to register a .co.th domain name the registrar in Thailand requires copies of company documents in the same name as the required domain name, so for example if an entity required acme.co.th the entity would need to have a registered company called Acme Co., Ltd.

A company can only register a single .co.th domain with the company name or initial name of company, and/or one .co.th domain name per trademark.

In 2018, the foundation advance to the registration for authentic using of persons (natural persons and juristic persons); therefore, the foundation reserves the right to consider and decide the number of domain names of each person on a case-by-case basis. The person who registered more than one domain name from all categories must comply with the following conditions:

• All domain name registrations must comply with the criteria of domain naming and conditions as provided specified policy by categories of domain name.
• The registration of domain names shall be effected in good faith by a holder of the domain name and a contact person who having a residential address or an office address in Thailand which can be contacted by THNIC.
• In the case THNIC detects any unusual act in domain name registration, specifically, registration of more than one domain name, THNIC reserves the right to refuse the request or revoke the domain name immediately.

{{anchor|Second level domains}}Second-level domains

THNIC admits regular .th registration for third-level domain under seven groups of predefined second-level domains: ::data[format=table] | For English domain names | script-title = th:"ดอทไทย" โดเมนเลือดไทย กรรมสิทธิ์เฉพาะคนไทย|date = 18 January 2011|url = http://www.thairath.co.th/content/tech/142353|newspaper = Thai Rath|language = th|access-date = 21 December 2013|url-status = dead|title = "ดอทไทย" โดเมนเลือดไทย กรรมสิทธิ์เฉพาะคนไทย|archive-url = https://web.archive.org/web/20181001142953/http://www.thairath.co.th/content/tech/142353|archive-date = 2018-10-01}} | Eligible applicant | |---|---|---| | .ac.th | .ศึกษา.ไทย | Academic | | .co.th | .ธุรกิจ.ไทย | Commercial | | .go.th | .รัฐบาล.ไทย | Governmental | | .mi.th | .ทหาร.ไทย | Military | | .or.th | .องค์กร.ไทย | Non-profit organizations | | .net.th | .เน็ต.ไทย | Internet service provider | | .in.th | .ไทย | Individuals, companies or organizations | ::

In 2014 THNIC opens registration for second-level domain name. They are typically available for new registration in three rounds annually. Each domain name must be the English name of an organization, trademark or natural person, except in the case of a project name. Each domain is subjected to a 10,000 baht application fee and 100,000 baht annual fee for the first 10 years.

Second top domain

|name=.ไทย |image= |introduced=2010 |type=Country code top-level domain |status=Active | registereddomains=18,633 | dateregistereddomains=April 22, 2018 | refregistereddomains= |registry=THNIC |sponsor=THNIC |intendeduse=Thailand Entities connected with Thailand |actualuse=secondary domain name |restrictions= |structure= |document= |disputepolicy= |DNSname=.xn--o3cw4h |website=THNIC |dnssec=yes In 2010 a new top domain was registered and introduced for Thailand, intended for domain names in the local language. This top domain is (.thai). As of 2011, thousands of sites with this domain are active.

It appears that the Thai second-level domains are assigned directly to sites with English domain names. Other groups of domains must use third-level domains, as in the table above.

References

References

1. (6 June 2013). "เผยโดเมน '.th' ทะลุ 6 หมื่นชื่อ-ภาคธุรกิจใช้กว่าครึ่ง". [[Thai Rath]].
2. (2013-03-01). "นโยบายการให้บริการชื่อโดเมน .th และ .ไทย (ฉบับปรับปรุงปี 2556)".
3. (1 April 2013). "Policy of .th and .ไทย service". Thai Network Information Center Foundation.
4. (18 January 2011). ""ดอทไทย" โดเมนเลือดไทย กรรมสิทธิ์เฉพาะคนไทย". [[Thai Rath]].
5. (2014-06-11). "THNIC เปิดตัว Second Level Domain (SLD) แบบเฉพาะกิจ ให้คนไทยขอโดเมน .th ได้แล้ว • Thumbsup".
6. (15 January 2024). "Guidelines for .TH Second-Level Domain Name Registration".
7. "site:.ไทย".

::callout[type=info title="Wikipedia Source"] This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page. ::