What type of domain is right for me? Choosing the right domain will make it easier for people to find you and remember you. There are several classes and categories of domain names, and understanding them can help you find the ideal domain for your web project.
Domains are divided into several types based on different criteria:
- Domain classes by meaning
- Domain classes by extension type or geographic area
- Domain classes by structure
- Top-level domains
- Second-level domains
- Subdomains
- Special domain categories
Domain Classes by Meaning
When choosing a domain name, this is arguably the most important category to consider. The type of domain you choose will largely determine the direction you take in building your web project. Based on meaning, domains fall into four classes:
- Descriptive domains
- Invented or branded domains
- Acronyms
- Personal names
Descriptive Domains
As the name suggests, this type of domain “describes” the subject of the website using common words and phrases. Examples include “hotels.com”, “officerent.com”, or even “registros.com”.
These domains have the advantage of being very easy to remember and can help attract visitors more quickly by improving visibility in search engines, whether through organic rankings or paid advertising.
Since they’re made up of familiar words, these domains evoke a sense of familiarity that automatically lends them a degree of trustworthiness, one that can be reinforced or undermined by the experience your website delivers.
Descriptive domains are also called “generic domains” or “keyword domains.” However, “generic domains” can cause confusion since the same term is also used to describe a type of domain extension.
Invented or Branded Domains
These domains use invented words (like “Sony”, “Nintendo”, or “Microsoft”). Domains that use a real word with no direct connection to the product or service are also considered branded domains. Think Apple.com, Amazon.com, Clarin.com.ar, and LaNacion.cl.
The main advantage is flexibility: you can build a distinct brand identity from the outset, which over time makes you more recognizable than most other domain types (with the possible exception of personal names).
Acronyms
These domains are formed from the initial letters of a group of words. Well-known examples include: AFA (Asociacion del Futbol Argentino), DNI (Documento Nacional de Identidad), or CSE (Consejo Superior de Educacion).
Acronym-based domains are easy to remember and type, thanks to their brevity. The main drawback: they’re rarely available, since a given combination of initials can represent many different companies or institutions.
Personal Names
For projects or websites with a strong personal character (such as a personal blog or an artist’s website), domains made up of a person’s own name are almost always the best option. Notable examples include ikerjimenez.com or cindycrawford.com.
Domain Types by Extension or Geographic Area
When people talk about domain types, the most common terms you’ll hear are “gTLDs” and “ccTLDs.” These refer to the geographic scope of a domain’s extension, also known as a “TLD” (Top Level Domain). “.com”, “.ar”, “.mx”, and “.cl” are all examples of extensions.
gTLDs or Generic Domains
gTLDs were the first type of domain to appear. “gTLD” stands for “Generic Top Level Domain” and refers to domains created for international use — that is, they are designed to be registered and used by anyone in the world.
The most popular gTLDs are .com, .net, and .org. These domains, especially .com domains, are the most widely recognized in the world. For that reason, it is always advisable to register the “.com” version of your desired domain (whenever it is available).
Beyond their popularity, gTLDs have the added benefit of generally being easier to manage and register than ccTLDs or country-code domains.
nTLDs or New Domains
nTLD (or New Top Level Domain) is the term for generic (internationally available) domains that have been introduced since 2013, offering users new alternatives as the availability of .com domains continues to shrink. Examples include: .vip, .online, .club, and many more.
In total, more than 1,000 new domains have emerged in recent years, though only a handful are gaining enough traction to matter. Among those showing signs of establishing themselves are .top, .club, .vip, .online, and .shop, as well as several new extensions tied to cities or regions: .nyc (New York City), .london, and .tokyo.
Country-code, National or Territorial Domains (ccTLDs)
Territorial domains, also known as ccTLDs (country-code Top Level Domains), are extensions tied to a specific country. They’re always two letters long and were created to give each country its own domain space. Examples: .cl (Chile), .ar (Argentina), .mx (Mexico), .es (Spain), and so on.
Unlike generic domains, each ccTLD is managed by an entity within the corresponding country (for example, NIC.AR in Argentina or NIC Chile in Chile). Each body independently defines requirements, procedures, pricing, and other aspects of registration.
As a result, conditions and domain registration prices can vary enormously from one country to the next. .AR domains in Argentina require proof of local residency, a national ID, and tax credentials. Registering a .CL just requires a Chilean address. At the other end of the spectrum, .MX domains can be registered with no special requirements at all.
Some domains were born as country-code extensions but have since had their management rights sold to private companies that market them as generic alternatives. That is the case with .CO domains (Colombia), which are positioning themselves as an alternative to .COM. Similarly, .TV domains — associated with “television” — technically belong to Tuvalu, a small island nation in the Pacific.
Sponsored Domains or sTLDs
This is the least well-known group. Sponsored domains are extensions intended for a specific industry or interest group, overseen by an organization representing that community. They’re specialized domains designed for a specific type of business or user and come with very restrictive registration requirements.
Examples include: .aero (aviation industry), .edu (educational institutions), .gov (United States Government), and .museum (museums).
Domain Classes by Structure
This classification is probably the least relevant for most users. The term “domain” originally refers to the scope covered by each string of characters in a domain name, separated by a dot (”.”).
In this classification, domains are grouped by levels and read from right to left. Take the address www.registros.com as an example:
- .com => Top-level domain. Also known as a TLD (Top Level Domain).
- .registros => Second-level domain.
- www => Third-level domain or subdomain.
Most extensions consist simply of a top-level domain (.com, .net, .cl, .es). However, some countries chose to create extensions made up of two levels (.com.ar, .net.ar, .com.mx, .com.br, .net.br, .com.es, .org.es). These are known as second-level domains.
The reasoning was typically to reserve the main domain (.ar, .mx, .br) for restricted uses (like government agencies), or to give citizens a wider range of naming options.
Finally, this category also includes subdomains, which act as “folders” within a domain name used to configure different types of content or services. The most common subdomain is “www,” but other common examples include “ftp” (for file transfers) and “mail.” Subdomains are unlimited and can be used to offer different types of information or services under a single domain. For example, if registros.com wanted to create a dedicated deals section, it could be hosted at ofertas.registros.com.
Special Domain Categories
In addition to all the categories above, two special types are worth mentioning: domain hacks and IDNs (Internationalized Domain Names).
Domain Hacks
Domain hacks are domains that use the extension itself to complete a word or name. For example, you could use the .do extension (Dominican Republic) to create the domain “aiki.do.” Similarly, typing youtu.be (.be is the country extension for Belgium) takes you to YouTube.com, and Google uses a domain hack for its URL shortener: goo.gl (.GL is the country code for Greenland).
While domain hacks are creative and clever, they have one significant drawback: users tend to remember the full word as a single unit. After visiting aiki.do, they’ll remember “aikido” and, when they try to come back, will often type “aikido.com” (or the most popular extension in their region) instead.
For this reason, domain hacks are only recommended for secondary uses, primarily as redirects to your main website or email.
Internationalized Domains or IDNs
Finally, there’s a special category known as “internationalized domains.” When the domain name system was first created, it was built with an English-only mindset. Only characters from the English alphabet could be used; accented letters or characters like “n” were not supported.
To fix this limitation, the IDN protocol was introduced years later, enabling non-Latin characters in domain names. This opened the door to domains like “diseno.com” or “aguila.com,” as well as domains using Japanese, Arabic, and other scripts.
As with domain hacks, using an IDN domain as your primary domain isn’t advisable. Habit is powerful in the domain world: over the years, we’ve grown accustomed to domains without accents or special characters. Registering “diseno.com” is only worthwhile if you also hold “diseno.com” without the special character, since many users will try that variation when looking for your site.
