What makes a good website domain for a Thai business?
A good website domain for a Thai business is short, easy to say and spell, free of trademark conflicts, and registered in the company's own name. For most firms the choice of ending comes down to .com, .co.th, or both, pointing to the same site. The rest of this page explains how to get each of those right.
First, the three words people mix up. The domain is your address, such as yourcompany.co.th, rented yearly from a registrar. Hosting is the server where the website's files live, paid separately. The website is what we build and put on that server. You can change host or rebuild the site and keep the same domain, which is why the domain is the part to protect most carefully. If the hosting side is still unclear, our guide with web hosting explained for Thai businesses goes through it. Your email addresses also follow the domain, so the name you choose today is the one on every quote and invoice for years.
Rules for a good business domain
Test every candidate the Bangkok way: say it over the phone to a colleague, then ask them to type it into LINE without seeing it. If they get it wrong, customers will too.
A made-up example: "Riverview Realty" sounds fine in English, but a Thai speaker reading it aloud may blur the r and l sounds and the v and w, so a listener could type "liverwiew" or "riverwiew". A clearer name, or buying the likely misspelling as well, saves lost enquiries.
- ShortAim for something you can say in one breath and that fits on a business card without shrinking.
- Easy to spell aloudAvoid silent letters and words with several spellings.
- No hyphens or numbersPeople forget whether it was a dash or '4' or 'for'.
- Mind the sounds Thai speakers confuseR and L, V and W, and English final consonants such as s, l and th are often dropped or swapped when spoken.
- Match the business nameIf your brand is in Thai, use a clear romanisation and stick to one spelling everywhere.
- Avoid place or year limitsA name tied to one district or a year dates badly when you move or grow.
- Check it reads correctlyJoined words can form accidental words; read the address as one string.
.com, .co.th or something else?
In Thailand the realistic choices are .com and the Thai country-code endings run by THNIC, the registry for .th. A .com can be registered by anyone in minutes. A .co.th is restricted to businesses that can prove a registered company or trademark, which is exactly why Thai buyers read it as a sign of a real local firm. The documents and the process are covered in our guide to .co.th domain registration.
Many companies hold both: the .co.th as the main address for a Thai-facing business, and the matching .com redirecting to it so nobody lands on a stranger's site. If you sell mainly abroad, reverse that. Thai-script domains ending in .ไทย exist too, but they are awkward to type on many keyboards and in email clients, so treat one as an extra redirect, not your main address.
| Extension | Who can register | Signal to buyers | Best for |
|---|---|---|---|
| .com | Anyone | International, neutral | Businesses selling abroad or with foreign audiences |
| .co.th | Registered businesses, with documents | A real Thai company | Thai-facing companies, clinics, hotels, B2B |
| .in.th | Individuals and organisations in Thailand, per THNIC rules | Local, less formal | Individuals and small projects |
| .ไทย | Per THNIC rules | Thai, but hard to type | A redirect to your main site |
Does the extension affect SEO in Thailand?
A little, and only in one direction. Google's documentation on multi-regional sites says country-code domains such as .co.th are a strong signal that a site targets that country. That helps a Thai-facing business slightly and would hold back a .co.th site trying to rank in Singapore or the US.
A .com is treated as generic. It can rank perfectly well in Thailand, because Google also reads the page language, the content, the address on the site and local links. Hosting is a weaker signal still, as our article on whether server location affects SEO explains. Plenty of Thai businesses rank on .com addresses. So pick the extension for your buyers and your brand first; the ranking effect is small compared with the quality of the pages themselves.
What matters more for SEO is keeping one domain for years. Changing domains later is possible with proper redirects, but it always carries some risk and a lot of work, so decide carefully now.
How much does a domain cost each year?
Ask "how much is a .com domain" and you get very different answers, because three layers are mixed together.
- The registry price. Verisign runs .com and charges registrars a wholesale fee, USD 10.26 a year at the time of writing, with a rise to USD 10.97 announced for 1 November 2026, under its agreement with ICANN, which adds a small fee of its own. No registrar can sell below that for long.
- The registrar price. Each registrar adds its margin. Shop around, and compare the renewal price, not the headline.
- The first-year promotion. Very cheap first years are common, with renewals at a much higher price. Some registrars also charge extra for privacy, transfer or DNS features.
Thai .th endings are priced by the registrars accredited by THNIC and often cost more than a .com; check the current fee with the registrar you use. Whatever you pay, turn on auto-renew with a company card and put the expiry date in a shared calendar. An expired domain takes the website and email down together, and a lapsed name can be bought by someone else.
Register it in your own name
The costliest domain problem is usually not the price. It is a domain registered years ago by a freelancer, a nephew or a former employee, on their personal account, and nobody can log in to renew it or change its settings.
- Registrant. The company, not a person and not the developer. For a .co.th this is required anyway.
- Registrar login. A shared company email address, such as an admin mailbox on your own domain, with two-step verification and the password in the company's password manager.
- Developer access. Give your developer their own delegated access or DNS access where the registrar allows it, never the owner password.
- WHOIS privacy. For .com, most registrars can hide your personal contact details from public lookup, and many include it free. It reduces spam and scam calls. Company details are less sensitive, but privacy is still worth switching on where available.
Once the domain is yours and secure, setting up mail on it is the next step. Our comparison of Google Workspace vs hosting email helps you choose, and the article on email deliverability with SPF and DKIM covers the DNS records that stop your messages landing in spam.
Check trademarks and taken names
A free domain is not the same as a free name. Before you register, run three checks.
- Trademark search. Thailand's Department of Intellectual Property offers an online trademark search. If someone has registered your name for similar goods or services, a domain will not protect you, and you may be forced to change brand after spending on signage and printing. For anything unclear, ask an IP lawyer.
- Similar domains. Search the name with other endings and common misspellings. A competitor or an unrelated adult site on the .com of your .co.th name will catch your customers' typos.
- Social and marketplace handles. Check that the same name is free on the platforms your buyers use, such as Facebook, Instagram, LINE and Shopee. Matching names make you easier to find and to trust.
Then buy the obvious variants that matter: the .com and .co.th pair, and one or two likely misspellings, all redirecting to your main address. Resist buying dozens; each one is a renewal to remember.
After you buy
A domain on its own does nothing. The next steps, in a sensible order:
- Set up email on the domain before anything else, so staff stop using personal Gmail for quotes.
- Put the renewal date and the registrar login in a shared company record.
- Plan the website: pages and site structure, languages and what you want visitors to do.
- Once the site is live, keep it updated and keep an eye on the domain and DNS as part of routine care.
That last step is where many small sites slip. Our explainer on what website maintenance covers sets out the routine work, and the monthly website maintenance checklist includes domain renewals and DNS checks you can run yourself.
When you are ready for the site itself, see how we handle web design and development for Bangkok businesses, in English and Thai, typically in about 15 days. After launch we also offer maintenance, priced per site on request; the page on maintenance pricing explains how that quote is put together. WhatsApp or call +66 93 004 4098, or email service@websitedevelopmentbangkok.com; we are open every day from 10:00 to 19:00 Bangkok time.
Keep reading
Sources
- THNIC: .th domain categories and rules
- ICANN: .com registry agreement
- Verisign: domain name industry and pricing notices
- Domain Name Wire: Verisign raising wholesale .com prices (April 2026)
- Google Search Central: managing multi-regional and multilingual sites
- Department of Intellectual Property, Thailand
Builds and ranks the websites: the systems behind the 17 client sites whose Search Console numbers we publish. This guide was written by the Website Development Bangkok team. More about us