A domain must be unique (for example there can only be one single Yahoo.com) and must be registered with a domain registrar (ie. NameCheap); while for sub domains, users can freely add it on top of the existing domain as long as their web host provide the service. Some would say sub-domains are the ‘third level’ domains in the sense that they are simply “sub folders” under the domain root directory, normally used to organize your website content in different languages or different categories.
The best web hosting company provides the tools to launch your website and the support to help it grow. We rounded up 49 web hosts known for their reliability and evaluated them based on user resources and customer service. Then we signed up for the top 11 to figure out which company offered the most useful features for new website owners, whether you're a tech pro or an absolute beginner.
If you own a business, your company needs a website. If it doesn't have one, it should. Naturally, online businesses by definition require websites for marketing and selling products or services by definition. In the internet age, however, even local brick-and-mortar business need to at the very least be discoverable via the web (and they probably ought to be selling online, too). Word of mouth only gets you so far in this internet-centric age. These days, people discover new businesses—even local business—via Bing, Google, and Yahoo, search engines that make it incredibly simple to find companies' products, operational hours, and prices. If your business doesn't appear in the search results, especially on the first page, it'll be difficult for potential clients and customers to find you. In other words, no website, no money. You do not want that. Of course, web hosting isn't just for businesses. You may want to host a personal website for many reasons. Either way, the services here have you covered.