Domain names are essential in order for the web to work correctly. With out using domain name your website cannot be found easily. The domain name is a human friendly way of finding out server IP addresses using a system called Domain Name System (DNS). To identify a specific device within a DNS namespace the hostname or fully qualified domain name (FQDN) is used, for example, www.mydomain.com identifies the ‘www’ device in the ‘mydomain’ domain.
The domain registration process is used for claiming a domain name to utilise within the public DNS infrastructure (internet DNS). This process is very simple and costs next to nothing. If you want to run a website a domain name is an essential prerequisite. There are numerous levels to the domain name system. A top level domain makes the foundation of all internet registered domains. There are now many top-level domains, like:
+ many more.
Second level domains exist directly under one a top level domain, for instance, mydomain.com, in which ‘mydomain’ is this second level domain.
These days there are many domain name extensions readily available for use. In the early days of the internet, there were only a few like .com, .net, .org, etc. Nonetheless, because of the boom in internet sites being built over the years, many more domain extensions have become available, such as .tv, .me, etc.
All domain names must adhere to a specific naming convention. The following restrictions are applied to all domain names:
- Must use ASCII letters (A-Z and 0 to 9)
- Maximum 255 characters in total.
- Can include hyphens (-)
A domain tree is made by separating each level of the domain with a period (.) character.
You ought to register your website name for as many years as you possibly can, having said that, many domain extensions allow you to pay on a yearly basis. There are some domain name extensions that employ a minimum two year registration restriction, thus yearly registration isn’t an option. An example of a domain extension that applies this restriction is the .co.uk domain.
The domain name system (DNS) is utilised to convert human friendly names, for example www.example.com, to network addresses known as IP addresses, for instance 192.168.1.1 which computers use to exchange data. There’s another service for converting IP addresses to domain names, called reverse DNS (rDNS). This is used when you know the IP address, but don’t know the domain name.