What is SLD.th?
SLD.th (Second-Level Domain .th) refers to domain names that are directly under Thailand's country code top-level domain (.th) without any other category in between, like .co.th, .in.th, .ac.th, .go.th, or .or.th
Examples of SLD.th include ais.th, true.th, apple.th, amazon.th, google.th, facebook.th, visa.th, line.th, tiktok.th, shopee.th, youtube.th, and popmart.thม, that the names are short and directly match the name of a brand or organization.
To register an SLD.th, there are specific requirements to ensure the domain name is credible and unique. Applicants must have a valid registered trademark or trade name, or be a legal entity registered in Thailand. The domain name requested must match the organization's name or trademark exactly.
Using an SLD.th can enhance an organization's credibility and brand image. A short and direct domain name that matches the brand helps improve search engine optimization (SEO) performance and protects against brand name misuse.
Why Register an SLD.th ?
Be a Part of Developing Thai Communities
All revenue generated from SLD.th domain registration fees is donated to the THNIC Foundation. This fund is allocated to support crucial projects aimed at ensuring equal access to the internet for all Thais, even in remote areas. By registering an SLD.th, you directly contribute to this vital social mission.
Build a Stronger Brand
Shorten your domain to .th for easier and more convenient website access.
Prevent domain name cybersquatting.
Someone else might register the .th domain instead and use it in a way that harms your brand.
Boost Your SEO Performance
A .th domain is a country-code top-level domain (ccTLD) that helps your website rank better in local search results.
Gain a Competitive Advantage
Using .th domain gives you a significant advantage in brand image, making you appear more trustworthy than your competitors.
Examples of SLD.th Domains
3m.th
agoda.th
aia.th
ais.th
amazon.th
apple.th
bt.th
ebay.th
facebook.th
garena.th
google.th
gucci.th
ikea.th
instagram.th
lacoste.th
lego.th
line.th
microsoft.th
paypal.th
popmart.th
shein.th
shopee.th
tiktok.th
toa.th
true.th
uob.th
visa.th
whatsapp.th
xiaomi.th
youtube.th
Own Your Domain in Just 4 Steps!
Submit documents with your desired domain name.
Wait for document review.
Receive notification of review results.
Make payment according to the terms.
Have Questions ?
FAQ
If you are not an international company, you only need a company registration certificate.
1.Registering a Domain Name Based on an International Company Name
Required Documents:
1.1 International company registration certificate (original and English/Thai translation)
1.2 Company registration certificate in Thailand
1.3 Letter of appointment for the authorized representative to register the domain on your behalf (as per the attached sample file)
1.4 Copy of the ID card or passport of the signatory on the letter of authorization
2.Registering a Domain Name Based on an International Trademark Name Required Documents:
2.1 International company registration certificate (original and English/Thai translation)
2.2 Company registration certificate in Thailand
2.3 Letter of appointment for the authorized representative to register the domain on your behalf (as per the attached sample file)
2.4 Copy of the ID card or passport of the signatory on the letter of authorization
2.5 International trademark registration certificate (original and English/Thai translation)
You cannot register the domain anytime. The system only accepts applications in the following rounds:
1st February - 31st March 202
1st June - 31st July 2025
1st October - 30th November 2025
After each application round closes, you'll be notified of the review results within 1-2 weeks. You can check the status of your application at: https://www.thnic.co.th/sld
The application fee is 10,000 THB (one-time only), plus a domain registration fee of 100,000 THB, totaling 110,000 THB per domain name (prices exclude VAT).
Currently, there is no limit; a company/organization can register more than one name. Both full names and abbreviations can be registered.
For .co.th, it is possible to register an additional SLD.th domain. The documents required are the same as those used for the .th third-level domain, and you can refer to the documents previously used as long as they are still vali
For .in.th, new documents must be submitted depending on the type of SLD.th registration.