The difference is that in subdomain, you’ll have a longer name, for example, yourname.myhosting.com. While when you buy the domain name yourself, you could the shorter one, for example, www.yourname.com.

However, if you don’t like a long subdomain name, you could choose a shorter username, for example mine.myhosting.com. If you prefer the subdomain name that related directly with your business, you could find a free web hosting service that contains your business word in it, and then add your username in the front, such as name.moviehosting.com or name.podcasthosting.com.

People who prefer domain names, usually don’t know that subdomain also could rank well in the search engine. Contrary to popular believe that search engine spiders always ignore the subdomain, the spiders still crawl them though. They didn’t differentiate whether your website is a subdomain or a domain that you bought yourself. It’s just doesn’t make any differences at all, except for the way you write your content to be more SEO friendly for your website.

If you happen to have a lot of categories in your website with your own domain name, you could submit each category to search engine, and have the same results with a subdomain one. It’s often suggested that you make your categories as a subdomain so that the search engine spiders will look at your categories and think of it as a complete set of website information.

One serious problem that you might be experience when using a subdomain is when the main domain name getting banned by search engine. Your website that you put in a subdomain will suffer because the search engine spiders won’t crawl in there too. So, if you happen to need a subdomain than regular domain, choose the one that you’re sure won’t be banned by Google or other search engines because of violating the Terms of Agreement for the next 10 years or so.

There is nothing wrong if you choose to have a subdomain. If you do it strategically by linking one subdomain with others, you could get higher search engine ranking.

Always keep in mind, if you are truly using the subdomain(s) for genuine purposes ( like publishing good content ) , there is nothing wrong with it, and you should not be worry.