Home / What Is a ccTLD? The Complete Guide to Country-Code Domains
The complete guide
What Is a ccTLD? The Complete Guide to Country-Code Domains
Country-code top-level domains are the two-letter endings like .uk, .de and .jp that give each country and territory its own corner of the internet. This guide explains how they work, how they differ from .com, and what to check before you register one.
What does ccTLD stand for?
ccTLD stands for country-code top-level domain. The top-level domain (TLD) is the last part of a domain name, after the final dot. In example.com the TLD is .com; in example.de it is .de.
Country-code TLDs are the two-letter endings set aside for countries and territories. Almost all of them match the two-letter codes in the international standard ISO 3166-1, which is why Germany is .de (Deutschland), Switzerland is .ch (Confoederatio Helvetica) and Spain is .es (España).
How ccTLDs fit into the domain name system
The domain name system (DNS) works like a hierarchy. At the top is the root zone, which lists every top-level domain and points to the organisation that runs it. Each ccTLD is run by a registry (sometimes called a ccTLD manager), usually an organisation in or appointed by that country.
The registry sets the rules: who may register, what names are allowed, what it costs at wholesale, and how disputes are handled. Most people never deal with the registry directly. They buy names from a registrar, a retailer such as the companies you already use for .com names.
The worldwide list of TLDs and their managers is kept by IANA. Every extension in our directory links to its official IANA record, which names the registry.
A short history
Country codes were part of the domain system from the start. The first ccTLDs were added in the mid-1980s, around the same time as .com, .org and .net. The decision to use the ISO 3166 list meant the internet did not have to decide what counted as a country: it followed an existing international standard.
A few early exceptions survive. The United Kingdom uses .uk even though its ISO code is GB, because .uk was assigned before the rule was settled. The Soviet Union's .su outlived the country itself and is still in use. .uk, .eu and .ac all use codes that ISO "exceptionally reserves" rather than standard country codes.
Over time, some small countries discovered their two letters spelled something valuable in English: .tv, .fm, .me, .io and later .ai. Licensing those extensions to commercial operators became a real source of national income, and those endings took on a second life as global brands. We cover that story in domain hacks.
ccTLDs vs gTLDs
The other main family is generic top-level domains (gTLDs), such as .com, .org, .net and newer endings like .app, .shop or .online. gTLDs are not tied to a place and are governed through ICANN contracts. ccTLDs are governed locally, so their rules vary much more.
| ccTLD | gTLD | |
|---|---|---|
| Tied to a country | Yes, by its code | No |
| Who sets the rules | The national registry | Mostly ICANN contracts plus the registry |
| Eligibility | Varies: open, local presence or restricted | Usually open to anyone |
| Typical use | Local businesses, national brands, word hacks | Global brands, general use |
Read the full comparison in ccTLD vs gTLD.
Popular country-code extensions
Some ccTLDs are popular because of the size of their home market; others because of what their letters spell.
| Extension | Country or territory | Known for |
|---|---|---|
| .de | Germany | One of the largest ccTLDs in the world |
| .uk | United Kingdom | Very widely recognised; .co.uk and .uk |
| .cn | China | Large national extension with real-name rules |
| .in | India | Large, fast-growing market |
| .io | British Indian Ocean Territory | Tech startups ("input/output") |
| .ai | Anguilla | Artificial-intelligence companies |
| .co | Colombia | Marketed as "company" |
| .tv | Tuvalu | Video and streaming |
| .me | Montenegro | Personal brands |
See all 250 or so country-code extensions.
Can anyone register a ccTLD?
Not always. Every registry writes its own rules, and they fall into three broad groups:
- Open: anyone, anywhere, can register through a registrar. Examples: .io, .co, .me, .tv.
- Local presence required: you need a real connection to the country, such as citizenship, residence or a registered business. Examples: .us, .ca, .au, .jp.
- Restricted or specialised: extra checks, identity verification or limited categories of registrant.
Some registrars offer "trustee" or "local presence" services that register a name on your behalf. Read the terms carefully: legally, the trustee may be the registrant, and the registry can cancel names that break its rules. More in who can register a ccTLD.
Why businesses choose ccTLDs
Local trust
In many countries, people trust the national extension more than .com for local businesses. Germans expect .de, Britons recognise .co.uk, and Australians are used to .com.au.
Availability
Short, clear names are often taken in .com but available under a country code. That can be a good option, as long as you check trademarks and the risk of confusion with whoever owns the .com.
Meaning
For a few extensions, the letters themselves carry meaning: .ai for artificial intelligence, .tv for video, .fm for audio.
Market structure
A company working in several countries may run local sites on local extensions, each with its own language, prices and contact details.
Risks to understand before you buy
- The rules can change. After Brexit, many UK-only holders lost eligibility for .eu names.
- Local law applies. A ccTLD falls under the laws and policies of its country; content allowed elsewhere may not be allowed there.
- Political change. Because ccTLDs follow country codes, a change in a territory's status can affect its extension. The future of .io has been discussed for exactly this reason.
- Renewal prices. Some ccTLDs cost much more than .com every year, and premium names can carry premium renewals.
- Reputation. Extensions that were cheap or free, such as .tk, attracted abuse, and some spam filters still treat them with suspicion.
Frequently asked questions
What does ccTLD stand for?
ccTLD stands for country-code top-level domain: a two-letter domain ending, such as .uk or .jp, assigned to a country or territory.
Is .com a ccTLD?
No. .com is a generic top-level domain (gTLD). It is not tied to any country.
How many ccTLDs are there?
There are about 250: 248 two-letter, Latin-script country codes in the internet's root zone at last count, plus versions in other scripts such as .рф. Our directory lists every two-letter one.
Can anyone register a ccTLD?
It depends on the extension. Some are open to anyone in the world, some require a local address or business, and a few are tightly restricted. See who can register.
Keep reading
ccTLD vs gTLD
How country-code and generic extensions differ, and when each fits.
Domain Hacks
How .io, .ai, .tv and friends became words, and a tool to find your own.
Choosing an Extension
A step-by-step method for picking the right ending.
Who Can Register?
Open, local-presence and restricted ccTLDs explained.