The ending two characters form a country mnemonic. It denotes the country in which the domain is registered. The characters ".au" in the domain name "abc.com.au" indicate Australia. It means that this domain is registered in Australia. Therefore, It is an Australian domain.

A domain registered in another country will have different ending characters.

Please note that domain names registered in the United States don't have any country mnemonic. That is the domain "abc.com" would be a domain registered in the USA.

The characters ".com" denote the the type of domain, i.e. commercial domain. There are other types of domains such as ".net", ".org", ".edu"etc.

A domain name has to be registered by a domain name registering authority.

Each country has an organisation which looks after registration of the domain names.

In most of the countries, an initial fee is charged for the domain registration and also a periodical renewal fee.

You can register the domain name yourself. But it involves being aware of a lot of technical information. It may be a good idea to hire the services of a web service provider for registration of a domain name for your business website.

Horizon Media Consulting provides domain registration services for our clients.

The total cost of the domain registration is the domain registration fee charged by the domain registration authority in each country plus an additional handling charges of the web service provider you choose.

Our handling charges for domain registration are very nominal. Please contact us for our price.