Kinds of Domain Names:

Domain Name, simply put, your address on the World Wide Web. Domain names are selected after a lot of research and effort, because it is the best tool to boost your online business. There are various options available while choosing or registering your online business.
Mutiple Domain Hosting: You can find this option with your Web Hosting Provider. He will give you an offer to have 5 domain names. Of these five, you can use one for your website and hold the remaining four or even sell it to your clients.
Domain Parking: If you are starting an online business but your website is still not ready, however, you have decided your search domain, and then you should purchase it immediately. You can purchase your domain name which gets placed on a name server and can be used once your website is ready. This is called Domain parking.
Sub Domains: They are third level domains used to organize your website. To access them you need a special URL. However they are just folders under your root directory.
Want to check if your domain name is available then log on to PC names.