Country Code TLDs, Explained
By Mustafa Bilgic · Updated 18 August 2026
Country code TLDs are two-letter domain extensions assigned to specific countries or territories by IANA, such as .uk for the United Kingdom or .de for Germany. There are roughly 250 ccTLDs in the root zone. Some are open to registrants worldwide, while others require local presence or citizenship—this guide covers the most notable ones with verified country matches.
This table covers ccTLDs with high registration volume or notable secondary usage. For the complete, current list of all active ccTLDs, consult IANA's Root Zone Database.
Notable ccTLDs: Country, Status, and Access
The following table lists notable country code TLDs, their associated country or territory, and whether registration is open to anyone or requires a local connection. Registration policies can change, so verify current requirements with the relevant registry before applying.
| ccTLD | Country / Territory | Registration |
|---|---|---|
| .ai | Anguilla | Open |
| .at | Austria | Open |
| .au | Australia | Australian presence required |
| .br | Brazil | Brazilian presence required |
| .ca | Canada | Canadian presence required |
| .ch | Switzerland | Swiss contact required |
| .cn | China | Chinese entity required |
| .co | Colombia | Open |
| .de | Germany | Open |
| .es | Spain | Open |
| .eu | European Union | EU/EEA presence required |
| .fr | France | EU/EEA presence required |
| .in | India | Open |
| .io | British Indian Ocean Territory | Open |
| .it | Italy | EU presence required |
| .jp | Japan | Local presence required |
| .me | Montenegro | Open |
| .mx | Mexico | Open |
| .nl | Netherlands | Open |
| .no | Norway | Norwegian connection required |
| .nz | New Zealand | Open |
| .pl | Poland | Open |
| .ru | Russia | Open |
| .se | Sweden | Open |
| .tv | Tuvalu | Open |
| .uk | United Kingdom | Open |
| .us | United States | US nexus required |
Open Registration vs Residency Requirements
The distinction between open and restricted ccTLDs is straightforward. Open ccTLDs—like .de, .co, and .uk—allow anyone worldwide to register, regardless of where they live or operate. These extensions function similarly to generic TLDs in terms of accessibility, though search engines may still treat them as geographic signals for the associated country.
Restricted ccTLDs require some form of local connection before registration is approved. The specific requirements vary widely: .ca requires Canadian presence through citizenship, residency, or a registered Canadian entity. The .us extension requires a nexus with the United States. Some, like .cn, require a registered Chinese entity. The .eu extension is available to registrants located within the EU or EEA. Before registering a restricted ccTLD, check the official registry's eligibility page to confirm you qualify—requirements are enforced at registration and sometimes reverified later.
ccTLDs Used Beyond Their Country
Several country code TLDs have developed strong secondary identities unrelated to their original country. The most prominent example is .io, assigned to the British Indian Ocean Territory but widely adopted by technology companies and startups. Similarly, .ai (Anguilla) has become associated with artificial intelligence ventures, .co (Colombia) is marketed globally as a commercial alternative to .com, .tv (Tuvalu) is used by streaming and media companies, and .me (Montenegro) powers personal brand and portfolio sites.
This secondary adoption works because the extensions are short, memorable, and available for open registration. The country registries generally welcome international registrants because the fees generate meaningful revenue—particularly for small island nations like Tuvalu. However, anyone using a ccTLD outside its geographic context should understand that search engines may still associate the domain with the extension's assigned territory, which can affect geo-targeting in search results.
Choosing a ccTLD for a Global Audience
If your audience is concentrated in one country and the corresponding ccTLD is available to you, registering it is often the simplest way to signal local relevance. Users in Germany trust .de domains, users in the UK recognize .uk, and search engines use ccTLDs as one of several geo-targeting signals when ranking results locally.
For a global audience, a generic TLD like .com remains the path of least friction. ccTLDs can work for international sites—many global companies use .io or .co successfully—but you accept certain trade-offs. Search engines may need additional configuration, like hreflang tags or Search Console geo-targeting settings, to understand your intended audience. Some email recipients in other countries may not recognize an unfamiliar ccTLD. And if the extension's registry changes its policies—a real concern with TLDs tied to small or politically sensitive territories—your domain's future could be affected by events outside your control.
Frequently asked questions
What does ccTLD stand for?
It stands for country code top-level domain. These are two-letter extensions managed by designated registries under the authority of each country or territory, as coordinated by IANA.
Do ccTLDs affect SEO rankings?
Search engines treat ccTLDs as a geo-targeting signal, which can help you rank in the associated country's results. For a global audience, a gTLD like .com is ranking-neutral. Google has confirmed that the choice between different gTLDs does not affect ranking.
Can I register a ccTLD for a country I do not live in?
Only if that ccTLD has open registration. Extensions like .de, .co, and .uk allow anyone worldwide to register. Others, like .ca, .us, and .cn, require a verifiable connection to the country or territory.
What happens to .io after the Chagos Islands transfer?
The 2025 UK-Mauritius agreement on the Chagos Archipelago raises questions about .io's long-term governance. Registry operators have issued continuity statements, but genuine uncertainty remains. If you hold a .io domain, monitoring official announcements from the registry is advisable.