Introduction:

Welcome, Dear. It seems you want some useful 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 definition?

This system was introduced 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 site. Thus they give names to identify any site 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 the domain to visit any web page, and they are registered with DNS and are use URL for locating a website.

Some examples are

• google.com
• zappedia.com

Levels of the domain:

They have the suffix that categorises them in different levels. There is the top, second and third level of them. Each one has its importance and use.

What is the top level domain?

It is considered to be at the top position in the DNS. Particular organisations manage them. It is further classified into:

1)Generic top-level domain name definition:

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

2)Sponsored TLD:

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

3)International country code TLD:

They are specially chosen to represent any particular country. They consist of 2 characters. For example .uk. They were introduced in 2009 and contained an encoded part that accounts for a specific country. The encrypted 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 organisations)
• .edu ( for educational institutions)
• .gov ( used by governments)

Some country code TLD are:

• .int  ( employed by international companies)
• .br (operated 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 on the left side after the dot. Let me explain with some examples.

• In googel.com, .com is TLD while Google is the second level
• In ABC.uk, .uk is TLD while ABC (below the dot) is the second tier.

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

Third-level domain:

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

Domain name rules:

Certain standards 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 remember it quickly.
• 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 (from 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 cases sensitive. You write abc.com or ABC.com both will result in the same site.

Domain name vs. URL:

URL stands for uniform resource locator. Domain name is a part of URL. It is the name of the 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 a website address is?

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 the internet and people find you quickly.

What is a computer with a domain name called?

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

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

 website hosting:

You want your site 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 server. There are shared hosting also.

How to create a 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 ht docs folder copy the PHP files you want to test on the server.
3. In your browser run the PHP files. For example, if your file named xyz.php is in ht docs then in your browser type localhost/xyx.php to run it.

Conclusion:

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 the internet. Believe me, domain name search and registration is not a difficult task. If you know about website URL and what does it mean you may do the task easily. you may also be interested in What are servers?