Trang chủ SEO Basic What are domains? Overview of all knowledge when choosing Domain Name

What are domains? Overview of all knowledge when choosing Domain Name

bởi Nguyễn Thành Tiến

What are domains ? In fact, businesses always aim for an impressive domain name when building a website. However, choosing the right domain name is not easy at all. Follow this article, I will show you how to choose a good, standard domain name and make sure users will remember your brand.

Learn what a domain is and how to choose a domain name

What are domains? Instructions on how to choose the right domain name

What are domains?

Domain (Domain Name) is the address of the website operating on the Internet, which is the address that you type directly into the browser to access any website instead of the IP address. In other words, the website is the house and the domain name is the home address.

What is a domain?

What is the definition of domain name?

Domain acts as home address or zip code to locate. The web browser needs a domain name to direct you to the Website you are looking for. Now, if you want to access a website, you don’t need to enter a long string of IP addresses that are hard to remember, just enter the domain name into the browser to be able to access it.

What are domains? Why is domain name important in SEO?

>>Learn more: What is a URL ? Distinguish between URL and Domain

How domains (domain names) work

What happens when you enter your domain into your web browser?

When entering a domain name into a web browser, that domain sends a request to the global network including DNS servers. At this point, the server will look for the nameservers associated with the domain and send requests to those nameservers.

These nameservers are managed by the Hosting company, which is the domain provider for your website. Hosting companies will return the server IP address, where your website is located.

The server is called a web server, which is installed with special software such as Apache, Nginx (two popular web server software). The job of the web server is to process the request, fetch the web page and related information, and then send this data back to the web browser.

How domain names work - domain

How domains work

Types of domains (domain names)

Domains have different extensions like .com, .org, .net, .info, .io, … but the most popular is .com (46.5% worldwide). Therefore, I recommend using a domain name with the .com extension. Why? Take a look at the domain types in more detail below.

Types of website domains

What is domain? Types of website domains

TLD – Top level domain name

TLD stands for “top-level- domain. This domain name has a dot ending, or domain extension, which is ranked at the top level in DNS.

For example: Domain “” then “.vn” is called the top-level domain.

Common top-level domains (TLDs) are .com, .org, .net . In Vietnam, the common TLD is .vn . In addition, there are other less common TLDs like .biz, .club, .info, .agency, etc.

.com, .net, .org are top-level domains

Common top-level domains are .com, .net, .org

The Internet Assigned Numbers Authority (IANA) is an Internet numbering organization that divides TLD top-level domains into three distinct categories, which I am about to talk about below. Stay tuned for more!

ccTLD – Country Top Level Domain Name

Country-code top-level Domain, abbreviated as ccTLD, is used in a particular country according to ISO code – an international standardization organization. For example, in Vietnam it is .vn , in the UK it is .uk , in the US it is .US , in India it is .in , in Spain it is .es .

Domain .vn is commonly used in Vietnam

Domain .vn is a country-level domain name used in Vietnam

They are used by websites that want to target users for a specific country, and are an indication that the user is visiting the correct website address for that country (with local language).

Website visitors tend to prefer their country-specific ccTLDs. Traditionally, ccTLD domains have higher conversion rates in their respective countries.

gTLD – Shared Top-Level Domain

Generic top-level domain, abbreviated as gTLD , is a domain that is commonly used worldwide, regardless of country code.

gTLD includes well-known domain names like  .com, .net, .org, .biz, .tech, .gov, .mil, …However, .gov and .mil domains are restricted to owners, .gov is allowed used in government organizations (Government) and .mil is often used in the military (Military).

Generic top-level domain name

A shared top-level domain name is a domain name used regardless of the country code

The .net domain was originally intended for Internet service providers (ISPs) but has since become generalized for all purposes. The .org domain is for NGOs, but there’s really no such thing as binding.

Therefore, your website does not need to meet any conditions when registering any gTLD domain name. This is also why the .com domain is not strictly for commercial websites.

Shared top-level domains are divided into two categories: sponsored top-level domains (sTLDs) and infrastructure top-level domains (iTLDs) .

sTLD – Sponsored Top Level Domains

Sponsored top-level domains are domains that are restricted to certain organizations and groups such as .gov, .mil domains .

There is also a .edu domain for educational institutions, .post for postal and telecommunications services, .asia for companies targeting the Asian market, .coop, .museum,

(Domain) sponsored top-level domain)

Some Sponsored Top Level Domains

uTLD – Unsponsored Top Level Domains

Unsponsored top-level domains (uTLDs) like .biz, .pro, .name, .info .

iTLD – Infrastructure Top-Level Domain

The infrastructure top-level domain is the domian .arpa representing ARPA (Routing and Addressing Parameter Area). This domain is dedicated to ICANN to solve Internet infrastructure problems.

Other types of domain names

Test top-level domain (tTLD), Internationalized country code top-level domains (IDN ccTLD), restricted generic top-level domains (grTLD),…

Refer to the extension meaning in the domain:

Organization responsible for the domain

ICANN stands for Internet Corporation for Assigned Names and Numbers – is a non-profit organization that implements policies related to DNS and domain management. ICANN will license the sale of domains to companies called Domain Name Registrars.

These companies will indirectly make domain name changes to the domain name registrar. Domain name registrars will be the authority to sell the domain, manage the records, renew or transfer it to other domain name registrars.

ICANN - DNS and domain management organization

ICANN – DNS and domain management organization

Differentiate Subdomain and Addon domain

What are subdomains?

Subdomain , also known as subdomain, is a split from the main domain and acts like a normal domain but has the same main domain name.

For example, if the main domain is “”, the subdomain could be “”.

An example of a subdomain

An example of a subdomain

>> Further reference: What is a subdomain ? Notes when creating subdomains

What is Addon Domain?

Addon Domain is another type of domain name that is added to your hosting and functions as a primary domain name. Addon Domain allows using different domains for different websites but using the same hosting and cPanel control panel.

For example: Your domain is “” then you can add another domain “” for another website on your same hosting.

What is Addon Domain?

What is Addon Domain?

Factors to evaluate a quality domain

Besides a good hosting, choosing a domain for the website is also very important in the process of creating a website. You should think carefully and choose a domain name that is impressive and easy to remember.

Choose Domain Name so that users can clearly remember and type your website address into their browser bar.

Here are my tips for you when choosing a domain name. Please read carefully!

Short domain name, easy to remember

When deciding to choose a domain name, you should aim for the goal that users can remember your website’s domain name. Therefore, choose a domain name that is short, easy to remember, not too difficult to read, and impossible to read more than one way .

Do not use special characters and numbers in the domain website. Make sure that when you read out that Domain Name your friends can easily type it into the browser without your help.

The domain is suitable for the field or service

That means the Domain Name must match the theme of your website, industry or service .

Avoid the case that the domain name is not related to the website content that will confuse users when accessing. This also helps users remember the domain associated with activity on your website.

Domain Name (domain name) suitable for website content

Domain Name must match the content on the website

Domain acquisition 

Domain acquisition means that you want to build and develop exclusively with a certain Domain Name, you should register all domain name extensions to avoid other users registering and using that name. This can cause misunderstandings and affect your brand.

Domain name containing SEO keyword

Setting a domain name containing SEO keywords is a way that users often use to serve SEO purposes as well as help customers identify the field in which you are operating.

For example:,,…

The importance of a domain name containing SEO keywords

Make sure that the keywords in your domain are relevant to the website content. Keywords that appear first help users recognize the content of the website. In addition, keywords can improve your website making it visible to users who are searching for related products or services.

Positive domain name

Users will remember better for domains with positive information and images .

For example:,,…

Some reasons you should register a domain name

Maybe it’s better if you own your own domain name now. That domain name can be the personal name, company or brand you want to do business with, depending on your preferences.

Registering a domain name helps you to mark the copyright of that name and in the future no one can use this Domain Name anymore.

In addition, you can use this domain name and hosting to build a sales website or personal blog with your own brand. Alternatively, you can use a registered domain to make a more professional email like “[email protected]” and use an email signature.

Create email from domain

Register a domain to create professional emails from that domain

If you have a business website, this is a pretty smart way. Through this way, customers will easily remember info@mybusiness as your own Domain Name .

How to register a domain name?

The domain name registration process is increasingly modern and extremely simple, you only need a few steps to own a satisfactory Domain Name already.

Your task is to search for a domain name, provide some personal information for security and confirm you are the owner of that domain name, then choose to register at domain name registrars.

You can contact the registrar for domain name registration support if you are not knowledgeable about domain management.

How to register a domain name

Domain name registration

What is DNS?

DNS (Domain Name Server) is understood as the domain name resolution system. Once a user accesses that domain, DNS is responsible for interacting through the Internet Protocol (IP) address. DNS translates domain names to IP addresses and vice versa.

What is DNS?

DNS has the function of translating domain names to IP addresses for the browser to upload resources to the Internet

What is a domain transfer?

Transfer domain is the term used to refer to the transfer of domain registrars. You can transfer your domain name to another provider but must ensure the following conditions:

  • The domain has been registered and updated WHOIS.
  • The domain is not in the Pending Delete or Redemption state.
  • There is a domain transfer code EPP code.
  • Turn off domain protection service.
  • Domain name ownership information must be complete and accurate.
What is Transfer Domain?

What is domain name transfer? – Transfer Domain

Domain name transfer usually happens in case the user wants to bring the domain name together with the hosting provider for easy management.

If you need to move one domain to another, take care to set up redirects on a page-by-page basis so that subdirectories and content pages are redirected to their respective subdirectories on the domain. new. You should avoid redirecting all pages from one domain to the homepage of another domain.

Differentiate domain name transfer and domain name pointing

Transfer Domain is the transfer of management rights from one provider to another. Domain transfers sometimes involve a transfer fee to the new registrant. Domains after transfer will usually renew themselves for an additional year.

Point Domain is an operation to access the domain name management area at the current domain name registrar to update the current domain name registrar record to use a certain hosting service.

In short, when you already have a domain name and just bought hosting from another provider , you will have to point the domain name to that hosting. In case you want to bring the domain name and hosting to the same provider for easy management, you will need to transfer money for the .

What is the difference between hosting and domain name?

What are domains? What is Hosting? What is the difference between domain and hosting? I will answer soon!

For a website to work, it needs both a domain and hosting. A domain name gives users an address to access a website. While hosting is the server space, where website data is stored.

The domain is like the home address of the website and hosting is the home of the website. You need to have a home address before building a house, that is, you must have a domain first and then hosting. Hosting and domain are two extremely important factors for your website.

How long does it take to buy an expired domain?

You can buy a domain that expires after about 75 days. However, depending on the type of TLD top-level domain, the purchase time will vary. Therefore, contact your domain name registrar for more precise and clear information.

A suggestion for you! When you check the domain information (WHOIS) and see that it is in the Pending Delete state, you need to wait a few more days to buy that domain name.

Reference articles

>> What is SEO ? Why should you optimize your website for SEO?
>>21 The latest basic and advanced Onpage SEO 
optimization factors

Frequently asked questions about domains

What are the criteria for choosing a good domain?

  • Short domain name, easy to remember
  • The domain is suitable for the field or service
  • Domain acquisition
  • Domain name containing SEO keyword
  • Positive domain name

How to create a business email without a website?

You can create a professional email address without a website and you can do it with or without web hosting.

However, if you want to get email hosting, you will need to get a domain name. Once you have your domain name, you need to connect it to your web or email hosting service.

Is the domain name the same as the IP address?

Internet Protocol, or IP addresses, are different from . The IP address is a set of actual numeric commands. It transmits precise information about the address in a way that is useful to a computer but makes no sense to a human. The domain name acts as a link to the IP address.

Is it possible to host a website without a domain name?

Some web hosts, mostly free web hosts, allow you to create a website even if you don’t have a domain name. To do that, they create a subdomain that they link to your site.

Are Google Domains safe?

Google Domains provides a secure and reliable infrastructure for your domain so you can scale your business like a pro.

At no extra cost, you can access modern security methods that make it easier to protect your domain, such as: 2-Step Verification for your Google Account.

Is Domain Name Important for SEO?

While the domain name itself is not considered a direct ranking factor by Google, the domain’s factors can affect overall SEO success. These include factors like memorability, length, keyword usage, brand ability, etc.

Does changing your domain name affect SEO?

Changing domain names can affect SEO, as you are effectively moving your site from one address to another. To avoid losing traffic during a domain move, it’s a good idea to learn and follow methods about domain migration.

Do domain extensions affect SEO?

Domain extensions, commonly known as Top Level Domains (TLDs) , are not generally considered a ranking factor by Google, except in the international SEO arena.

In this case, having a country-specific top-level domain (ccTLD) can tell search engines which country your content is targeted in.

Is .com the best for SEO?

While the .com domain extension is by far the most popular Top Level Domain (TLD) , there is no indication that it is being given any special treatment by search engines by search engines. any.

That said, users generally trust .com extensions more than others, and having a .com version for your domain is often seen as desirable.

Learn how to change the domain name for the website

Above is an overview of what Domain is and instructions on how to choose a Domain Name for your website. Please follow what I instruct, hope that the article will be useful for you. Hope you find a unique and impressive domain name soon!

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