A domain name is quite important for any website. You cannot think of a website which is without a Domain Name System (DNS). Let me tell you one thing that a perfect domain name describes the company's work side view and the creating of logo is also made easy on that behalf.
If you want to decide that which domain is better for various purposes then you will have to go through the subsequent points:
1. Should be short
A good domain must be short. Do you feel that domains which are quite long are good enough? I do not feel so. Such domain names are very hard to memorize and there are plentiful of chances of misspelling it as well. Hence you should not use the long domain name.
2. A good domain name should be unique and should not have been used in any form before
Let me tell you that a good domain name should be inimitable. Just think of the google.com. You will not find any other site having this name. How has this happened? The google.com is registered under the US copyright and trademark database. It is also registered under the trademark database of all the countries. Hence you are not allowed to use this domain name. Like Google, you should also make sure that your domain name is inimitable and no other company is using it.
3. Do not try to copy any domain name
You should not try to copy any domain name which is quite renowned. Take yahoo.com as an example. Do not try to use Yaho.com. This will not help your cause if you are thinking for a long term business. Try to be inventive and come up with new ideas.
4. It should be memorable
This is certainly very important. Just take an example of the domain names like altavista.com, amazon.com and so on. All these are quite easy to keep in mind. As an example take the amazon.com. How can we forget the Amazon River? Hence the amazon.com is a high-quality domain name. However there are many tricks which can be applied. For example you can use any rivers name or any machine name which suites your companies profile.
5. A good domain name should hit the target viewers
This is certainly quite important. If available you should certainly select the .com domain. You can also select the .net domain. The main reason behind this is that most of the viewers in US are familiarized with .com or to some extent .net. So it would be healthier if you choose any one of the above two.
These are some of the tips which will definitely be quite helpful for you while selecting the good domain name.