Published: 17.10.2026
The .gu extension is the country-code domain of Guam, an island territory of the United States in the western Pacific Ocean and part of the Mariana Islands. Companies, hotels, schools and community projects that serve people on the island use it to show a clear local identity. English and Chamorro are the official languages, and the capital is Hagåtña. Use the availability form just below this text to see whether your name in .gu is still available.
Check if a .gu domain is available .gu Check
A short history
Guam has a long Chamorro heritage, and its landscape of limestone cliffs, beaches and tropical forest has shaped its towns and traditions. Today the island's businesses serve a wide mix of residents and visitors, including people from neighbouring islands and from Asia. As the internet reached schools, offices and then small businesses, the national ending became a natural address for organisations that serve the island.
Who runs it
The .gu zone is managed by a registry that keeps the central database of names and publishes the rules for registration. Registrars sell names to the public and send orders to the registry. Because the terms are set for this zone, the current published rules are the reference point for holder conditions, contact details and renewal. Check them before you order, since they can change.
Rules in practice
- Holder conditions: rules on who may hold a .gu name can depend on the holder, so confirm them before you pay.
- Contact details: registration data must be accurate, and it may be checked when the registry asks for confirmation.
- Name format: names use letters, digits and hyphens under standard DNS rules, and the zone may set its own restrictions.
- Renewal: enable auto-renewal and keep the contact e-mail address active so that renewal notices reach you.
Who uses .gu
- Hotels, guesthouses and tour operators that welcome visitors to the beaches and the reef.
- Restaurants, bakeries and shops that serve local and visiting customers.
- Schools, churches, sports clubs and community groups with a local membership.
- Consultants, builders and service firms that work with clients across the island and the region.
Strengths
- The ending gives a clear signal of the island, which helps visitors and customers recognise a local business at once.
- A name that reflects a specific island location can be a distinct and memorable choice for a local brand.
- Search engines may treat a country-code ending as one signal about the intended audience, so local content can be easier to match with local searches.
Things to keep in mind
- The zone points to one island, so a business that serves customers in the wider region or in the United States may also need a generic address.
- English and Chamorro are both official, so decide which languages the site will use and how the contact pages read.
- Good short names are often taken, so prepare alternatives before you start.
- Holder requirements can change, so check the current terms before a renewal or transfer.
Tips before you register
- Check the same name in .com and in the social networks you plan to use.
- Enter the business or personal details exactly as they appear in your official records.
- Publish a clear contact page with the address and telephone number, and a privacy notice.
- Set up SPF, DKIM and DMARC records before the domain sends any e-mail.
- Enable auto-renewal and protect the registrar account with two-factor login.
Frequently asked questions
Do I have to live on Guam to register a .gu name? Holder conditions may apply and can depend on your situation, so check the current terms at the time of the order.
Does .gu help a site appear in search results on Guam? It may be one useful local signal. Clear content in English or Chamorro, a fast site and genuine local links usually matter more.
Can a business with visitors from abroad use .gu? Yes. The ending shows the business is on Guam, though some visitors from abroad may still expect a .com address, so a second name can be worth considering.
