What are Domains? Definition, Types, Examples, and How to Choose It

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What are Domains?

Pertama GoBlog - In the digital era that is completely online like today, the role of the domain is very crucial in everyday life. 

In addition to making it easier to access content or information on a website, one of the basic functions of the domain can be used as branding so that the image of the company/ institution/ school becomes more popular among consumers.

For those of you who want to create a website, it's good to know more about what a domain is and its ins and outs. 

Starting from the most widely used types, how to choose an effective name to choosing a hosting provider to get the domain.

Definition of Domain

A domain is an address used to identify a network without an internet protocol (IP). The network in question can be a website or an application. 

Domain can be interpreted as a unique name intended to identify a server on an internet/ computer network.

In general analogy, a domain is like a plot of land while a website is a building or house that stands on it.

In a website, the domain function is very crucial because it can facilitate the identification process when there are visitors who want to access your website.

Without a domain, a website can actually be accessed but must know the IP address which consists of a series of several digit numbers separated by a period.

Domain names are unique, there should not be the same domain name from one website to another. 

Examples of domain addresses, for example, are www.pertamagoblog.com.

Domain Types

As a series in the website, the domain does not stand alone. There are at least three types of domains that are most often used. Namely top level domain, second level domain, and third level domain.

What and how is the explanation of the three? Here's a brief explanation below.

Top Level Domains (TLDs)

Is the type of domain that is most often used publicly, both for corporate and individual purposes. 

Because this type of domain is very popular and easy for consumers to remember. Examples are .com, .net, .org, and .info.

Top Level Domain or often called TLD is an extension of the domain. The TLD is the rightmost part of a domain name up to the point. 

For example the domain name pertamagoblog.com, the part which is the extension is .com.

TLD itself is divided into two types, namely Global Top Level Domain and Country Code Level Domain.

The Global Top Level Domain category usually uses domains such as .com, .net, .org, .edu, and others.

The .com domain is used for commercial websites, while .net is used for network websites, and .edu is for education. 

There are also other domains such as .org for organizations, .mil for armed forces sites and others.

Meanwhile, Country Code Level Domains are more often used for local domains in certain countries.

For example .id for Indonesian domains, .cn for China, and .my for Malaysia.

Domains for government websites and state educational institutions also use the Country Code Level Domain extension.

Second Level Domain (SLD)

The next type of domain is Second Level Domain, also known as SLD or “2LD.”

SLD refers to the name of the agency, organization, or preferred name used. SLD is a derivative of TLD which aims to be used more specifically.

For example, “pertama goblog” is the SLD in question. An important point to create an SLD that is easy for visitors to remember, type, or spell.

Therefore, you should use a familiar name and not too long.

You can create this SLD domain by registering and buying it. Don't forget to update regularly for at least one year.

Using SLD shows a more specific place than the site/website you want to visit. SLD is also the main name of a website/site/application.

Third Level Domain/ Sub Domain

In general, this Third Level Domain or 3LD (or it can also be called a sub domain) is the domain name that you give before the TLD and SLD.

The simple definition of a subdomain is part of a domain that functions to divide parts of a website / website.

The latter type is an additional domain that is usually used by large sites.

The existence of this additional sub is a sign that the site has a certain division or branch. So sites with subs can be said to be still in one ownership.

Subdomains are very suitable for use by large sites that require other, more specific pages.

Examples of its use are support.google.com, developers.facebook.com, blogger.com, wordpress.com. 

The name of the site followed by .blogger.com or .wordpress.com indicates if the site is still under the supervision and ownership of wordpress or blogger.

How to Choose a Domain

Domain is an important thing to build a website so it can't be done carelessly. You have to do research first or at least see and pay attention to what purpose you are making a website.

Because, if there is a website with the same domain name, it will not be able to be used. Domain names on the internet are also regulated by a special international agency, the Internet Corporation for Assigned Names and Numbers (ICANN).

Choosing a domain name for a website is not as easy as you might think. Because you have to see and pay attention to the availability of a domain name that you will make the hallmark of a website.

And what needs to be considered is the budget or budget that you will prepare to create a website.

Create a memorable domain name

The first step is to determine the domain name that you will create. Make sure the name is not too complicated and easy to remember. 

If the domain is difficult to remember, spell or type, it will certainly make it difficult for visitors.

Usually, readers prefer names that are not long and unique. The more unique the name used, the more interested potential visitors will be.

However, you should choose a name that matches the contents of the prospective website and choose names that are in accordance with the norms and do not conflict with things that can offend SARA.

Define target users by region

You also need to determine the target website visitors by area. If the target you want to achieve is an audience in Indonesia, then you can use a domain name in Indonesian.

If you want to target users or visitors to our website, Your besite from outside, can be circumvented with articles or posts in English.

Usually, even if your domain name is in Indonesian, a cognate country with Indonesia can also be a target user or visitor to your website.

Customize website content

This is the key and very important, create a name that matches the contents of the website. 

For example, if your website is made for fashion products, then look for a specific name that matches fashion trends.

The name has at least become a characteristic and can determine targets, both in terms of the target market and target area.

Examples of Domains (TLDs) that you should at least know

As explained above, the type of TLD domain is the key for you to know a website, whether it is an official domain or not.

Especially the domains belonging to the government's official website, due to rampant fraudulent practices on behalf of a government-owned agency.

Global Top Level Domains/ Generic Domains (gTLDs)

Is a domain name that ends in .Com, .Net, .Org, .Edu, .Mil, or .Gov .

This type of domain is often also called a Top Level Domain, that is, the domain is directly under the root (the dot behind the domain name).

And it doesn't show domains by country, so anyone can register. Typical examples:


The .com domain extension is without a doubt the highest top-level domain. Initially this extension was used for business purposes taking from the word "commercial".

However, now its use has extended to many other types of websites.


Similar to .com, .biz can also be used for business websites.

But the difference is that if .com focuses more on trade, .biz is indicated for the business sector.


Used for educational purposes or related to it in general. Some websites providing college journals also use a domain extension ending in .edu.

This is done so that the site looks credible and of course reliable as an educational website.


As the name suggests, the .info extension is used for media that deals with information.


If you have a personal website and want it to look more professional, use this extension.

The reason is because .name is intended for personal sites and more for non-organizational activities.


Used for internet purposes.


Used for organizational purposes.


Used for professional purposes.


Although not as popular as .com, .travel is also widely used by transportation service providers.


It was predictable. The purpose of the .tv domain is of course to indicate its television-related sites. This domain is commonly used by many major television sites.

Country Code Level Domains/ Country-Specific Domains (ccTLDs)

Domains ending in a two-letter extension. These domains are operated and registered in their respective countries.

And often also called Second Level Domain, which is a domain that is under the Top Level Domain.

Examples of Secondary Level Domains are .co.id, .co.uk, .com.gr, and so on.

For example:


Sch is used from basic to intermediate. Then what about higher levels such as universities, polytechnics, high schools, and so on? This educational institution uses the .ac extension.

To get an .ac domain followed by .id, an ID card, a Ministry of Education and Culture Decree, and a Rector Appointment Decree are required.


Taking from the word "company", co is also intended for trade partnerships. Over time, this extension is not only used for trading alliances.

You can find many examples on other websites such as product names that want to have an Indonesian identity.


Used for organizational purposes. If you want to get this organization's domain extension followed by .id, then you need an ID card, an Internal Organization Decree, and a notary deed.


For organizations holding telecommunication services Operator Permits.


For business entities, organizations or individuals who carry out their activities on the World Wide Web or WWW.


sch is specifically for schools from primary to secondary levels. In Indonesia, the use of this extension is accompanied by the suffix .id so that it becomes .sch.id.

To get a .sch.id domain you need an ID card and a letter of application from the principal.


Gov/go is intended for government institutions, taking from the word "government".


The use of the .mil extension is indicated for military institutions with predefined terms and policies.


Used for internet cafes with predetermined terms and policies.


Finally, after you know what a domain is and all its brief explanations, you can be wiser in accepting all the information that you will share again and can also be your guide in creating a website.

Domain is an important thing that you should not forget when creating a website.

After you have successfully selected and purchased a domain according to your wishes, don't forget to fill the website with content that can be a positive benefit for readers.

Because, everything will be of value when it can be of benefit to others.

Hopefully the above explanation can help you before creating a website. May be useful.


Greetings Literature!

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