.us is the country-code top-level domain for the United States. It works well for American public services, local organizations, campaigns and businesses that want an unmistakably national address. Registration is not open to everyone: the owner must satisfy the usTLD Nexus Requirements through citizenship or domicile, a U.S. organization, or a genuine business presence in the country.
A country extension can say something a generic ending cannot. In trailmaps.us, the final two letters tell a visitor which market the site serves before the page even loads. That clarity is the main advantage of .us. The tradeoff is that Americans instinctively type .com, while the registry expects every .us registrant to maintain a real connection to the United States.
What does .us mean?
.us is a country-code top-level domain, or ccTLD, delegated for the United States. It entered the DNS root in 1985 and is currently managed by Registry Services, LLC. Unlike repurposed country codes such as .io and .ai, its everyday meaning remains geographic: a .us address communicates an American connection.
The United States country-code top-level domain. Registrants must meet a Nexus category that establishes a genuine connection to the country.
Who can register a .us domain?
The Nexus Requirements provide three practical routes. You need to fit at least one, select the correct category when registering, and be able to support it if the registry checks the record.
| Nexus route | Who it covers | Typical evidence |
|---|---|---|
| Individual connection | U.S. citizens, permanent residents, and people whose primary domicile is in the United States or its territories | Citizenship, residency or domicile records |
| U.S. organization | A corporation, nonprofit, partnership or other organization formed under U.S. law | Formation, tax, lease or address records |
| Bona fide presence | A foreign person or entity with legitimate activities or an office, facility, sales relationship or other qualifying presence in the country | Current records showing the real U.S. activity |
A mail drop or made-up contact is not a safe workaround. The registry performs spot checks, and an owner selected for review may have to provide documentary evidence. Register the domain in the name of the person or entity that actually qualifies, keep the account details current, and read the official Nexus policy before buying.
When is .us a good choice?
The extension is strongest when location is part of the promise. A state-level advocacy group, nationwide membership organization, American-made product directory or public-information project can use .us to set expectations immediately. It can also rescue a concise name that is unavailable under .com, without resorting to extra words or punctuation.
- Local and national services: the visitor sees the market at a glance.
- Civic and community projects: the ending reinforces an American public-interest identity.
- Campaigns and directories: a short geographic ending can read naturally in print.
- Brand protection: an eligible U.S. brand can register its matching name and redirect it to the primary site.
It is less compelling for a global software product, a business planning immediate international expansion, or any owner unable to document eligibility. In those cases, a generic extension may avoid both geographic expectations and compliance risk.
.us vs .com
| Factor | .us | .com |
|---|---|---|
| Meaning | United States connection | Global commercial default |
| Eligibility | Nexus Requirements apply | Generally open to anyone |
| Name availability | Often better | Short names are scarce |
| Recognition | Clear but less habitual | Universal |
| Search geography | Strong U.S. location signal | Generic unless other signals localize the site |
| Best fit | U.S.-focused organizations and projects | Global or broadly commercial brands |
A domain ending is only one search signal. A .us name will not outrank a .com simply because it is local; content, links, business details, language and technical quality still matter. Read how TLDs affect SEO for the broader picture.
How to register .us safely
- Confirm the Nexus route first. Identify the qualifying person or organization before choosing a registrar.
- Check the matching names. Look at the
.com, common misspellings and trademarks before building a brand. - Use an accredited registrar. Compare the renewal price, transfer policy, account security and support rather than only the first-year discount.
- Enter accurate ownership data. The qualifying registrant should control the account and be able to answer a compliance check.
- Enable renewal and account protection. Turn on auto-renew, multi-factor authentication and a transfer lock, then keep a backup payment method.
Own the habit risk when it matters
If people will hear the address on a podcast, radio spot or in conversation, check who owns the matching .com. Visitors may add .com automatically. Owning both and redirecting one to the other is the cleanest solution when the budget allows.
★ Key takeaways
.usis the official ccTLD for the United States, not an unrestricted generic ending.- Citizenship or domicile, a U.S. organization, or a bona fide U.S. presence can satisfy the Nexus rules.
- It is most useful when an American identity helps visitors understand the site.
.comremains more familiar; compare audience, matching-name risk and renewal terms.- Accurate registrant data matters because the registry can request proof of eligibility.
Frequently asked questions
Who can register a .us domain?
A registrant must meet one of the usTLD Nexus categories: be a U.S. citizen, permanent resident or person primarily domiciled in the country; be a U.S. organization; or be a foreign entity with a bona fide presence in the United States.
Is .us only for businesses?
No. Eligible individuals, organizations and businesses may register .us. The deciding issue is a genuine United States connection under the Nexus Requirements, not whether the website is commercial.
Is .us good for SEO?
It can be a strong location signal for a site focused on United States users. The extension does not create a general ranking bonus, and the site still needs useful content, sound technical SEO and authority.
Should I choose .us or .com?
Choose .us when a clear United States identity is central and you meet the Nexus rules. Choose .com when you need the most familiar global default or expect to expand internationally. Brand owners often register both when practical.
Can a .us registration be checked?
Yes. The registry conducts Nexus compliance checks and can request evidence supporting the category selected at registration. Use accurate registrant details and keep proof of your qualifying connection.