A ccTLD is a country-code top-level domain, the two-letter suffix at the end of a domain name that identifies a country or territory, such as .de for Germany. IANA delegates each one to a national registry.

Does the ccTLD always match the ISO country code?

Almost always, since ccTLDs are derived from ISO 3166-1 alpha-2. The famous exception is the United Kingdom, which uses .uk even though its ISO code is GB.

Are some ccTLDs used commercially instead of nationally?

Yes. Several small territories license their ccTLD for branding: Tuvalu's .tv for television sites, Montenegro's .me for personal sites, and Anguilla's .ai for AI companies. They remain country codes by definition.

Is .eu a country code?

Not a country, but it is a special ccTLD assigned to the European Union as a supranational entity. It follows the same two-letter ccTLD rules and is included here for convenience.

Can anyone register any ccTLD?

No. Each registry sets its own rules. Some are open to the world, while others require a local presence, a registered business, or proof of residence. Always check the registry policy before assuming availability.

Country Code TLD Lookup

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Country code TLD lookup

Every country and territory in the world is assigned a two-letter country-code top-level domain, the suffix at the end of a web address such as .de, .jp, or .br. This reference lets you search by extension, country name, or ISO code to find the right ccTLD instantly.

How it works

ccTLDs are managed by IANA and are derived directly from the ISO 3166-1 alpha-2 standard, the same two-letter codes used in passports and on the back of vehicles. In nearly every case the domain suffix equals the ISO code lower- cased: Germany is DE in ISO and .de as a domain.

The headline exception is the United Kingdom, whose ISO code is GB but whose ccTLD is .uk for historical reasons (it predates ISO standardisation). A few territories also license their codes commercially — .tv, .me, .io, and .ai are technically national ccTLDs that have become popular for branding far beyond their home countries.

Tips and notes

Registration eligibility varies by registry. Some ccTLDs are open globally, others demand a local company or residency.
A ccTLD is two letters; longer suffixes like .com and .org are generic TLDs (gTLDs), not country codes.
The .eu extension is included as a special supranational case for the European Union, even though it is not a single country.