The domain is the name that identifies a website. It can be said that it is the equivalent of a person’s name or a car’s license plate, but applied to a web page. Domains always end with an extension (for example .com .es or .org).

A domain is linked to that web page, so that users who search on the internet by the specific name chosen for the domain can find it easily.

History of the domains

You have to go back to the origins of the internet when it still received the name of Arpanet.

Before using domains, Arpanet computers were registered in a file called  hosts.txt  that synchronized on all the computers that were part of the network. All were aware of the addresses of each of the users that made up that network.

Later, recognizing that it was a poor system, they decided to  centralize the file on a single server , but as Arpanet was growing, this momentary solution was also not successful.

The engineers,  Paul Mockapetris  and  Jon Postel, were the ones who  proposed to introduce a domain name system that would be administered by the US  Department of Defense .

With the system they designed they allowed to associate the names of previously registered domains with IP addresses of the connected computers. That was the origin that would later be included on the internet.

The new domain organization caused domain extensions to be added to more optimally structure the different domains.

In 1985, six domain extensions began to be used that are still valid today:  .com  (commerce),  .net  (network infrastructure),  .org  (organizations),  .gov  (government and public entities),  .mil  (US Department of Defense) and  .edu  (education services).

Parts of which a domain consists

In the domain two parts are distinguished: name and extension.

  1. It refers to the name of the company, brand, that of the individual or any concept that is associated with the theme of a website.
  2. Domain Extensions It is the final part of the domain name that has been chosen. The extensions associate the nature of the website that was created. For example: .es for Spain, .com for global use, .ar for Argentina, among others.

Advantages of having a domain

  • Build trust and credibility. It offers a more serious professional image, avoiding including in the domain names of a free provider.
  • Independence of any provider. If a website has its own domain, it can be changed without losing that address. On the contrary, if you are staying in a foreign domain, normally free, you cannot take it to another server without changing the address. If the domain is not its own, there is no right, nor control over it. For example:
  • Custom emails The email can be customized by having your own domain.

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