Published: 17.10.2026
The .sk extension is the country-code domain of Slovakia, a landlocked country in Central Europe with Bratislava as its capital. Slovak companies, schools, clubs and local services use it to show that they are based in Slovakia, and visitors in the country recognise the ending at once. Slovak is the official language, and it is closely related to Czech, so the ending suits a Slovak-speaking audience well. Use the availability form just below this text to see whether your name in .sk is still free.
Check if a .sk domain is available .sk Check
A short history
Slovakia has been an independent country since the early 1990s, and its national zone developed as Slovak businesses, public bodies and universities moved online. At first the zone served technology firms and research groups, and over time it spread to shops, tourism businesses and local services. Today .sk is the usual address for companies based in Slovakia, and its rules are published by the national registry.
Who runs it
The zone is run by the national registry for Slovak domain names. The registry keeps the database of names and sets the conditions for registration, while accredited registrars sell names to customers and send the orders on. Because the conditions come from the registry, they are the reference point for questions about holders, contact data and transfers, so check them before you order.
Rules in practice
- Holder conditions: the registry sets rules on who may hold a .sk name, and they can depend on the holder's location or status.
- Contact details: the information must be accurate, and it can be checked when the registry requires it.
- Length and characters: labels use letters, digits and hyphens, and can be up to 63 characters long.
- Slovak letters: letters with diacritics, such as š, č, ž and ť, may be possible through internationalised names, depending on the current rules.
Who uses .sk
- Slovak companies of every size, from family firms to national businesses.
- Hotels, guesthouses and tourism operators that welcome visitors to the mountains and cities of Slovakia.
- Schools, sports clubs, festivals and cultural groups with a Slovak audience.
- Consultants, clinics, accountants and other professional services based in Slovakia.
Strengths
- The ending signals a clear Slovak base and helps local customers feel that the business is close to them.
- Search engines can treat a national ending as one geographic hint, so Slovak-language content may match local searches well.
- The zone is short and easy to read on vehicles, signs and printed materials.
Things to keep in mind
- The ending is tied to Slovakia, so a business with customers mainly in neighbouring countries may need to think about its wider address too.
- Slovak visitors expect Slovak-language content, so an English-only site can feel less natural to them.
- Short and descriptive names are often taken, so prepare alternatives early.
- Conditions for holders can change, so keep your registration data current.
Tips before you register
- Check the name in .com and decide which zones matter most for your audience.
- Enter the holder details exactly as they appear in your official records.
- Prepare Slovak content, a clear contact page and a legal notice for the website.
- Host the site close to your visitors so that pages load quickly across Slovakia.
- Set up mail authentication records and turn on auto-renewal.
Frequently asked questions
Do I need a Slovak company to register .sk? It depends on the holder conditions in the current rules, so check them before you order.
Is .sk only for Slovak-language sites? No. The ending points to Slovakia, while the language of the site is your choice. Slovak visitors will still expect some Slovak content, though.
Does .sk help a site appear in Slovak search results? It is a useful location signal, but relevant content, a fast site and local references usually matter more.
