If you use the internet then you should know what domain names are. Whenever you visit web sites, the domain names appear in the address bar of the browser. The word address is very important, as just like your home address which allows people to find your house, a web address allows the browser to find a web site. The internals of the internet, do not actually use this address though, it is converted to an IP address (Internet Protocol), and it is that number in the format of 000.000.000.000 that is the actual address.
Domain names often contain the words that the site is about. So a site about guinea pig homes, will possibly be called guineapighomes4u.com. So if you are looking to register a domain, then give a clue to what the site is actually about in the name. However, this is not always the case, but by using a name that does not correspond with the sites subject you will need to build up a brand. Examples of this kind of thing is Apple and Samsung. We only know what they sell as they have built up a well-known brand around those names.
When you look at domain names you will notice that there is always a ‘full stop’ in it, and the part after it is known as the TLD (Top Level Domain). This is where the words ‘dot com’ come from, as the main TLD in the world is .com. These days though there are a lot of TLD’s, such as .us, .ph, .co.uk, and numerous others.
If you wish to purchase your own domain, there are many sites on the internet that allow you to do this, and most web hosting companies allow you one for free when you purchase some web space to host your site.