Country extension · Thailand
.co.th domain name
What you need to know about .co.th: who can register it, which details are required and how transferring works.
Specifications
The key details of .co.th
- Country
- Thailand
- Registry
- thdomain.thnic.co.th
- Registration period
- 1 to 10 years
- Renewal period
- 1 to 10 years
- Domain name length
- 2 to 63 characters
- Time to registration
- up to 3 working days
- Transfer code length
- 6 to 16 characters
- Transfer lock available
- no
- Number of nameservers
- 2 to 8
Features
- DNSSEC: no
- IPv6: no
- Special characters: no
- Whois privacy: no
- Trustee: no
Requirements
Who can register a .co.th?
- You can only register a .co.th domain name if the name matches a valid trademark in Thailand or the name of a company registered in Thailand.
- The domain name must be exactly the same as the trademark or company name. You can't abbreviate the name or add anything to it.
Documents
- If you register on the basis of a trademark, you need a trademark certificate for a valid trademark in Thailand.
- If you register on the basis of a company name, you need Thai proof of company registration.
- You only send the documents after you've submitted the registration request.
Owner
Renewal, cancellation and quarantine
- You can't have a .co.th domain name deleted straight away. If you want to get rid of it, let it lapse at the end of the registration period.
- A deleted or expired .co.th domain name can't be restored.
More information
Registry rules and links
- Registry website thdomain.thnic.co.th
- Registry whois thnic.co.th
- Dispute resolution policy thnic.co.th
- Registry terms and conditions thnic.co.th
Compiled from the registry's rules. Registries sometimes change their rules; if in doubt, the registry's terms take precedence. Updated on 11/11/2026.