“The shortest answer is doing.” - English Proverb
What is domain name?
A domain name is a unique identifier that defines a realm of administrative autonomy, authority, or control in the Internet. Domain names are also hostnames that identify Internet Protocol (IP) resources such as web sites. Domain names are formed by the rules and procedures of the Domain Name System (DNS).
What is a TLD?
A top level domain (TLD) is one of the domains at the highest level in the hierarchical Domain Name System of the Internet.
Generic top level domains (gTLDs) are the most prevalent domain extensions. .COM, .NET, ORG, .EDU, and .GOV are generic top level domains.
Country code top level domains (ccTLDs) are domain extensions that represent different countries. For example: .US is a country code top level domains for USA. .CA is a country code top-level domains for Canada.
What is Domain Name System (DNS)?
Domain Name System (DNS) is a local database that translates domain names to Internet Protocol (IP) addresses. It is much easier for humans to remember and use names than IP numbers, which are what computers need to find each other on the Internet.