Next are third-level domains, which are written immediately to the left of a second-level domain. There can be fourth- and fifth-level domains, and so on, with virtually no limitation. An example of an operational domain name with four levels of domain labels is sos.state.oh.us. Each label is separated by a full stop (dot). 'sos' is said to be a sub-domain of 'state.oh.us', and 'state' a sub-domain of 'oh.us', etc. In general, subdomains are domains subordinate to their parent domain. An example of very deep levels of subdomain ordering are the IPv6 reverse resolution DNS zones, e.g., 1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa, which is the reverse DNS resolution domain name for the IP address of a loopback interface, or the localhost name.
GlowHost earned our kudos for its 91-day money-back guarantee. It's six days short of DreamHost's 97-day guarantee, but with these numbers, who's quibbling over a few days? The company also offers 24/7/365 phone support option and free cPanel offering for most plans. The company operates 18 data centers worldwide. Finally, the company garnered extra kudos by driving all its hosting services with wind power.
A few companies have offered low-cost, below-cost or even free domain registration with a variety of models adopted to recoup the costs to the provider. These usually require that domains be hosted on their website within a framework or portal that includes advertising wrapped around the domain holder's content, revenue from which allows the provider to recoup the costs. Domain registrations were free of charge when the DNS was new. A domain holder may provide an infinite number of subdomains in their domain. For example, the owner of example.org could provide subdomains such as foo.example.org and foo.bar.example.org to interested parties.
Before we launch into our buying guide, you should know the three different categories on offer: shared web hosting (a good basic option if you're on a budget), VPS hosting (more flexible) and dedicated servers (for those running a bigger operation and in need of something more capable). If you're not sure which is the best level for you, you’ll find a detailed explanation of the different tiers at the bottom of this guide. It's also worth bearing in mind that you need to pick something that's going to be able to grow and scale up with you.

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Once you choose your provider, it's time for you to open an account with the monthly plan that fits your needs. If you still have questions about which plan is suitable for you, call its customer support staff and have them assist you through the registration process. Companies will generally charge a credit card on a monthly basis, however, some companies will also offer discounts for paying a yearly payment at once.
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