Domain parking means that you only register a domain and do not run anything on it. You do not need to buy hosting - space for a website, online store, etc.
By registering (parking) a domain, you protect it from being registered by someone else. An unregistered domain usually costs a few hundred CZK. On the other hand, popular domains can cost thousands or even tens of thousands of CZK.
Use the form above to check if the domain you want is available for parking. Customers often register / park similar domains. For example, with the domain "best-hosting.cz" it is a good idea to also register "besthosting.cz". If you do business internationally, you can also register domains with other extensions (.com, .net, .org, ...).
You can simply add web hosting to your parked domain. This gives you space for your website, an online store or just for storing your data.