What Is URL And Domain Name Definition? All You Need To Know

domain name definition


Welcome Dear. It seems you want some good and informative knowledge about URL, domain name definition and there some examples to clear your concepts. So I would like to tell you that you are quite lucky because you have arrived at the best place. Some of the points highlighted in this article are:

  • DNS
  • Domain name definition
  • It’s rules
  • levels of Domain
  • Domain vs. URL
  • Website address

What is a domain name system?

This system was introduces in 1980. It is a system by which the websites are assigned  names and the user need not type the IP address to access a website. Thus they give names to identify any website online. This system is in connection with a network.

Internet domain name definition, meaning and example:

It is a name used to identify an IP address. The IP address is not by users, instead they use domain to visit any webpage, and they are registered with DNS and are use URL for locating a website.

Some examples are

  • google.com
  • zappedia.com

Levels of domain:

Levels of domain

They have suffix that categorise them in different levels. There are top, second and third level of them. Each one has its own importance and use.

what is the top level domain?

what is the top level domain

It is considered to be at the top position in the DNS. They are managed by specific organisations. It is further classified into:

1)Generic TLD:

They are the ones that have 3 or more characters in suffix.

2)Sponsored TLD:

Private companies sponsor them and such companies have their own rules and regulations that need to be followed.

3)International country code TLD:

They are especially chosen to represent any specific country. They consist of 2 characters. For example .uk . They were introduced in 2009 and contain an encoded part that represents a specific country. The encoded part is in the native language of the country that is being represented by that it.

4)Brand TLD:

They are used for branding. They show a company name. For example:

  • .google
  • .gmail

list of examples of top level domains:

Some of them are:

  • .com( They are used for commercial purposes)
  • .org ( for organizations)
  • .edu ( for educational institutions)
  • .gov ( used by governments)

Some country code TLD are:

  • .int  ( used by international companies)
  • .br (used by Brazil)
  • .ng( for Nigeria)
  • .th (for Thailand)

second level domain:

This is the one that appears just before the TLD. This part is immediately at the left side after the dot. Let me explain with some examples.

  • In googel.com, .com is TLD while google is second level
  • In abc.uk, .uk is TLD while abc (below the dot) is second level.

They usually represent the organisation that has registered with any TLD. For example an intuition named PQR would register a domain with PQR.com so in second level domain the name or identity of organisation  is revealed.

third level domain:

These are the one on the left side of second level. For example in www.google.com ,  www is third level domain. There can be 4th and 6th level of them also. There is no restriction. Fourth and fifth level will be on the left side of the dot of third level.

Domain name rules:

Certain rules and regulations are followed on registering these names.  Some of them are:

  • The name should not be too long and it should be in such a way that people remembering it easily.
  • Spell them correctly.
  • If there are multiple words try to make them clear by use of hyphens.
  • Choose the one that is easily pronounceable.
  • If the name you are searching has already been registered, you can try using the name with some modifications or appending something before or after it.

Characters allowed in domain names:

It can have letters from A-Z, hyphens, numbers (form 0 to 9), underscores and some punctuation. You can’t use spaces and keep in mind not to start or end it with hyphens. Use hyphens and underscores are used in between as separators.

Are domain names case sensitive?

You don’t need to be case conscious i.e. they are both case sensitive. You write abc.com or ABC.com both will result in same site.

Domain name vs.  URL:

URL stands for uniform resource locator. Domain name is basically a part of URL. It is the name of actual site while url is the address of a site or any page. URL is the path to any page. Most of the URL has www in starting. It uses http i.e. hypertext transfer protocol. They are extensions

what is a website address?

what is a website address

This is not a new thing, it is the one discussed earlier. It is the URL of a website. Through your web address you are visible on internet and people find you easily.

What is a computer with a domain name called?

In this case it is a group of computers that are in a same network. They share the resources. Some examples include:

  • Computers in a library/lab of a any educational institution.
  • Computers in an office

 web site hosting:

You want your website to be online. So you are done with all the above explained things. Now what would be your next step?

It would be web hosting registration. Web hosting is a technology by which users can put their website/web page online. It provides accommodation for websites. These services are provided by hosting companies. Some are free while some are paid. Hosting companies have their own server. There are shared hosting also.

how to create virtual host in xampp?

how to create virtual host in xampp

You can also host websites on xampp. It is a web server package. To do this:

  1.  Download and then install it
  2. Then in the htdocs folder copy the php files you want to test on server than
  3. In your browser run the php files. For example if your file named xyz.php is in htdocs then in your browser type localhost/xyx.php to run it.


By the above explained Domain name definition, extensions and examples, I believe you may have understood the concept easily. It allows websites to be seen by people on internet. Believe me domain name search and registration is not a difficult task. If you know about website url and what does it means you may do the task easily.



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