Published: 28.09.2026
The .cz extension is the national domain of the Czech Republic. It signals a Czech address to visitors and to search engines, and it suits companies, craftspeople, schools and local projects that serve people in the country. Use the availability form that comes right after this paragraph to check whether your .cz name is still open.
Check if a .cz domain is available .cz Check
A short history
The Czech national zone was created when the Czech Republic became an independent state and needed a country code of its own. In the years that followed, universities, public bodies and early internet companies registered their names, and the zone gradually spread to ordinary businesses. Today it is a normal part of the Czech web, used for everything from family workshops to larger firms.
Who runs it
The registry for .cz is CZ.NIC, a non-profit association based in Prague. The association operates the zone, keeps the register of names and takes part in other projects that support a safer and more open internet. Registrars sell names to customers, and the rules for registration and holder data are published by the registry, so the current version should be read before you order.
Rules in practice
- Holder data: correct contact information is required, and it has to be kept up to date after registration.
- Character rules: labels can be up to 63 characters long and use letters, digits and hyphens.
- Accented letters: Czech letters with diacritics may be possible as internationalised names, depending on the current registry rules.
- Renewal: plan renewals a few weeks ahead and keep the registrar account secure.
Who uses .cz
- Small Czech firms, craft workshops and independent professionals.
- Hotels, pensions and tourist services in towns and in the countryside.
- Schools, sports clubs and cultural groups that serve a Czech audience.
- Online shops that deliver goods within the Czech Republic.
Strengths
- A .cz name tells visitors at a glance that the business is local, and people usually feel more at ease with a site that matches their own country.
- As a non-profit association, the operator is not a commercial seller of names.
- The ending is short, clear and easy to read on a sign or a vehicle.
Things to keep in mind
- The audience is Czech-speaking, so an English-only site may need a separate, generic address for foreign visitors.
- Short descriptive words are often taken by earlier registrants.
- A name that is very close to a foreign brand may confuse Czech visitors, so choose a distinct wording.
- Registration conditions can change, so keep your holder data current.
Before you order
- Check whether the same name is free in .com, and decide if you want to hold both.
- Enter your company data exactly as it appears in the Czech commercial register.
- Write the Czech pages first, then the English version if you need one.
- Host the site with a provider that has servers in Europe, for fast delivery to Czech visitors.
- Set up mail records and a professional address on the domain before launch.
Frequently asked questions
Can a foreign company register .cz? The registry sets the rules for holders, so check whether your situation is covered before you pay.
Does .cz help a site rank in Czech search? It sends a clear local signal. Good Czech content and sound technical work still decide most rankings.
Can I use .cz for a site in English? Yes, the language is your choice. A Czech audience will still expect at least some Czech text.
