Overview
A domain name is a name composed of a series of dot-separated labels that identifies a computer or group of computers on the Internet. It is used to identify the electronic location of a computer during data transmission.Domain Name Concept
A domain name is the name of a server or a network system on the Internet. It is also known as the "online trademark of a business" and is one of the essential products for corporate trademark protection. No two domain names are identical anywhere in the world — domain names are unique. This uniqueness means that each domain name is one of a kind, and a single website can have multiple domain names pointing to it.
Purpose of Domain Names
IP addresses are numeric identifiers used by Internet hosts for routing purposes, but they are difficult to remember. This led to the creation of domain names — character-based identifiers that are easier to recall than IP addresses. This is one of the key functions of domain names: providing easily memorable names for digitized Internet resources.
Domain Name Characteristics
Domain names are unique. When resources change IP addresses, only the mapping between the new IP address and the fixed domain name needs to be updated, allowing resources to be moved to different physical locations within the network address topology. Based on these two characteristics, domain names are also used to create unique identifiers for individuals and organizations. Any organization or individual providing Internet resources can choose a domain name that corresponds to their name, making it easy for others to access those resources.
Domain Name System
The system that maps domain names to IP addresses is a distributed database and a core service of the Internet. It enables people to access the Internet more conveniently by allowing them to use domain names instead of having to remember the numeric IP address strings that machines can read directly.
