How Many TLDs Are There? Domain Extensions Explained

If you have been involved in the domain industry for a while, you’re likely aware of an explosive increase in new TLDs. Starting with just nine TLDs in 1985, the landscape has expanded to encompass well over a thousand unique domain extensions today, with growth continuing.

If you’ve ever registered a domain name, you’ve seen the letters that come after the final dot — such as .COM, .NET, or .ORG. These are called top-level domains, or TLDs, and they play a crucial role in how the internet is organized and navigated.

In this guide, we’ll explain what TLDs are, how many exist today, and the different types available.

What Is a Top-Level Domain (TLD)?

A top-level domain is the last segment of a domain name — the part that appears to the right of the final dot.

Examples:

• dynadot.com → .com is the TLD
• wikipedia.org → .org is the TLD
• government.uk → .uk is the TLD

TLDs operate at the highest level of the Domain Name System (DNS) hierarchy and are coordinated by the Internet Corporation for Assigned Names and Numbers (ICANN) and maintained in the root zone by the Internet Assigned Numbers Authority (IANA).

How Many TLDs Are There? Current Domain Name Stats

As of 2026, there are 1,591 top-level domains currently in use according to the ICANN.

Despite there being such a large number of domain extensions, a vast majority of those have been launched within the last decade.

The dramatic increase in new TLDs started in 2011 when ICANN launched the ‘New gTLD Program’ to expand the number of gTLDs available by allowing organizations and companies to apply for their own unique TLD.

This program alone has received over 1,930 applications, with 1,241 new domain extensions delegated through the program since its launch, which has greatly diversified the options available for end-users and domain investors alike.

Types of Domain Names: Understanding Different Domain Extensions

What is a ccTLD? Country Code Top-Level Domains

A country code top-level domain (ccTLD) is a domain extension that is tied to or reserved for a country, sovereign state, or territory in the world. ccTLDs have the advantage of assisting with regional targeting in search engines, meaning the likelihood of a ccTLD showing up for users in that location increases directly due to ccTLD usage.

Many ccTLDs have use restrictions, such as limited registration to only residents or companies in that country, for example. A good way to recognize a ccTLD is by the number of characters - all two-character TLDs are ccTLDs.

Examples:

• .us — United States
• .uk — United Kingdom
• .de — Germany
• .jp — Japan
• .ca — Canada

Although designed for geographic use, some ccTLDs have gained global popularity.

The ccTLDs that are more frequently used for general, non-country specific use are referred to as gccTLDs (generic country code top-level domains). For example, .CO is commonly used by businesses as an alternative to .COM domain registrations.

What is a gTLD? Generic Top-Level Domains

Generic top-level domains (gTLD) are defined by not being tied to a specific country or region and have a wide variety of uses and associations.

Common examples:

• .com
• .net
• .org
• .info
• .biz

These legacy extensions remain among the most recognized and widely trusted online.

Living up to their name of being generic, these extensions that fall under the gTLD category have a large range of uses and can be associated with broad or niche industries. They can even indicate the type of content found on the domain’s website depending on the gTLD used.

New Generic TLDs (New gTLDs)

Introduced beginning in 2014, new gTLDs expanded naming possibilities far beyond traditional extensions.

Examples:

• .app
• .shop
• .blog
• .tech
• .store
• .online

Hundreds of new extensions are now active. Adoption of gTLDs has grown steadily as businesses seek more descriptive and brand-aligned domain names.

What is an IDN TLD? International Domain Names

Internationalized top-level domains (IDN TLD) are TLDs that contain characters that are outside of the roman English alphabet, primarily used for other languages that contain symbols such as Chinese characters or the Arabic alphabet.

An example would include .닷컴 which is Korea’s equivalent of .COM.

What is a geoTLD? Geographical Domain Extensions

Geographical top-level domains (geoTLDs) are domain extensions that target a region or geographical area, primarily for locations that don’t fall under a ccTLD which could be a specific city or area in a country.

GeoTLDs are considered gTLDs instead of being a subset of ccTLDs (meaning they follow the rules of a gTLD such as being three or more characters and having no search engine regional targeting).

An example of a geoTLD would be .QUEBEC for the province/city of Quebec in Canada or .WALES for the region of Wales.

What is a sTLD? Sponsored Top-Level Domains

An sTLD is a sponsored top-level domain. Much like the name implies, it is a TLD sponsored by an organization, specific community, or professional group.

Examples:

• .edu — accredited educational institutions
• .gov — U.S. government entities
• .aero — aviation industry
• .museum — museums

Registration eligibility is restricted and verified.

The sponsor of the TLD typically has additional responsibilities attached to it regarding providing accountability and transparency with its management, highlighting policies and representing the best interest of the public/internet community. sTLDs are uncommon and not frequently used.

Brand Top-Level Domains (Brand TLDs)

Brand TLDs are custom extensions operated by companies for exclusive use.

Examples:

• .google
• .apple
• .amazon

These extensions enhance brand control, security, and trust but are not publicly available.

Domain Name Structure: Second-Level and Third-Level Domains

What are Second-Level Domains?

Second-level domains (SLD), in a majority of cases, refers to your actual domain name that was registered. It is the characters located just the left of the dot found beside the domain extension.

For example, the SLD for abcde.com is ‘abcde’. Some domain extensions have an SLD already attached to them, typically to indicate usage of the domain. The most common example of this is .UK, where they use SLDs such as .CO.UK, .ORG.UK and .ME.UK to separate who is using the website and the type of content that may be found on it.

What are Third-Level Domains?

Third-level domains are referring to the characters found beyond the second dot, which is often the domain name when SLDs are used. For example, the third-level domain for abcde.org.uk would be ‘abcde’.

Occasionally, third-level domains are tied to a website that uses a subdomain. If the website uses ‘oranges.apples.com’, ‘oranges’ (the subdomain in this scenario) can be referred to as the third-level domain.

General TLD Questions

What is the purpose of all these different types of TLDs?

TLDs have a wide variety of applications, from length and memorability to association with a country or industry. Many times, choosing a TLD for a website comes down to that association - having your website with a specific tag (TLD) loosely represents the site’s industry, region, or the use of the domain. Since every TLD has its own unique context and association, the meaning between TLDs will vary heavily.

An example would be .COM, which has a very general, wide use versus a domain extension like .XYZ which represents innovation and creativity.

Why are some domain's premium? Is that related to domain extensions?

Premium domains refer to certain memorable domains that have high marketing potential typically with existing website traffic.

These domains can be either previously existing domains that are sold through domain aftermarket platforms or domains set aside by a domain registry that are listed for registration at a premium price point.

While TLDs can play a factor in the price of a premium domain, premium domains are common across many TLDs and are commonly set aside by registries when new TLDs are launched.

How many TLDs does Dynadot support?

Dynadot currently supports over 500 TLDs and we’re constantly adding new TLDs to our repertoire.

You can visit our full list of domain extensions and find a domain name that works best for your brand.

Are new gTLDs widely used?

Yes. While adoption varies by industry, newer extensions are increasingly used for branding and niche markets.

Can anyone register a sponsored TLD?

No. Sponsored TLDs like .edu or .gov have eligibility requirements and restricted registration.