What top level domain is used for the air-transport industry

.aero (derived from aeronautics) is a sponsored top-level domain (sTLD) used in the Domain Name System of the Internet. It is the first sponsored top-level domain based on a single industrial theme. The aero domain is reserved for companies, organizations, associations, government agencies, and individuals in aerospace-related fields. It was created in 2002 and is operated by SITA. SITA created and operates the Dot Aero Council.

Two-letter codes under .aero are reserved for airlines according to the IATA Airline Designators. While three-letter codes were initially reserved for airports (IATA airport code), they were released for registration by the larger aviation and aerospace community on December 1, 2008.[1]

The aero top-level domain was initially approved in 2001 for a 5-year term expiring December 17, 2006 as part of a proof-of-concept of new top-level domains. The agreement was extended in October 2006 for a six-month term until June 17, 2007,[2] and continued to be renewed on a June–December six-month cycle through June 17, 2009. In 2009, SITA and ICANN completed a new 10-year sponsorship agreement for the operation of aero.[3]





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The guide consists of a series instructional sections that are designed to teach the basic concepts of library research.

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Contact the librarians:

You can also request one-on-one research assistance by completing our form: Research Consultation.

InterNIC FAQs on New Top-Level Domains

Please note: You are viewing archival ICANN material. Links and information may be outdated or incorrect. Visit ICANN’s main website for current information.

The following is a list of frequently asked questions (FAQs) about the new top-level domains (TLDs) that are being introduced to the Internet. This list will be updated frequently; please check back often.

What is the status of ICANN’s New TLD Program?

ICANN is working to add seven new TLDs to the Internet’s domain-name system. In November 2000, after extensive discussions throughout the global Internet community, the ICANN Board selected seven TLD proposals to be included in the first addition of a global TLD to the Internet since the 1980s. The selected TLDs are: .aero (for the air-transport industry), .biz (for businesses), .coop (for cooperatives), .info (for all uses), .museum (for museums), .name (for individuals), and .pro (for professions).

  • .biz is already fully operational and accepting live registrations. For more information on these .biz, please visit the website of NeuLevel, Inc., the company selected to operate this new TLD: <http://www.nic.biz/>.
  • .info is also fully operational and accepting live registrations. More info on .info registration is availble at the website of the .info registry operator, Afilias Limited, at <http://www.nic.info/>.
  • .name is fully operational and accepting live registrations. The company selected to operate .name, Global Name Registry, has posted an informational page at <http://www.nic.name/>.
  • .museum is also operational. The .museum TLD is sponsored by Museum Domain Management Association (MuseDoma). MuseDoma’s informational site can be located at <http://www.nic.museum/>.
  • .coop is operational. The .coop TLD is sponsored by the National Cooperative Business Association (NCBA). An informational site for .coop is available at <http://www.nic.coop/>.
  • .aero is operational and is sponsored by Societe Internationale de Telecommunications Aeronautiques SC (SITA). For more information on .aero, please visit <http://www.nic.aero>.
  • The .pro registry agreement is still under negotiation. More information on .pro is available at the website of the registry operator, RegistryPro, Ltd., at <http://www.registrypro.com>.

Where do I register a .aero, .biz, .coop, .info, .museum, .name, or .pro domain name?

Domain names in these TLDs can only be registered through ICANN-accredited registrars and their resellers. Over 100 registrars have already signed new accreditation agreements making them eligible to register in the .biz, .info and .name TLDs. A list of accredited registrars is on the InterNIC website at <http://www.internic.net/regist.html>.

How can I protect my trademark in the New TLDs?

You should consult your attorneys for advice regarding intellectual property issues in the new TLDs. All of the new TLDs are subject to ICANN’s Uniform Domain-Name Dispute-Resolution Policy (often referred to as the “UDRP”). Also, each new TLD has established procedures to minimize customer confusion and cybersquatting by allowing trademark holders to assert rights to their trademarks in the new TLDs before registrations were opened to the general public.

For more detailed information about intellectual property protections in the new TLDs, please visit the registry operators’ websites (above.)

This article is the beginners guide into the realms of Top Level Domains, which will answer all your questions on what is a TLD.

If you have ever stared at the “TLD” abbreviation and wondered what it is. Wonder no more – here is the answer.

What is a TLD?

what is a TLD

Top-level domain (TLD) refers to the last segment of a domain name or the part that follows immediately after the “dot” symbol.

There are 5 types of TLDs:

  • Generic (international) Top-Level Domains (gTLD) – com, edu, org, net, etc.
  • Country-Code Top-Level Domains (ccTLD) – co.uk, ca, au, etc.
  • Sponsored Top-Level Domains (sTLD) – museum, aero, etc.
  • Infrastructure Top-Level Domains – .arpa
  • Test top-level domains (tTLD) – test

What Is the Purpose of a TLD?

TLDs serve as the instant notification to see what the domain is all about.

For example, when you see “.edu” domain it’s an instant reminder that the page belongs to a university or another educational institution.

What Are the Different TLDs?

If you are looking to find which TLD will better suit your business here are all the categories explained in detail.

Choosing the right TLD is of very little importance when it comes to SEO but it helps your potential customers to identify what your business is all about.

So spend a little time when choosing the domain’s TLD and don’t buy a “.co.uk” domain if your business is located in Australia.

Generic Top-level Domains (gTLDs)

Here are the generic or international TLDs that you can choose from and info for what businesses these domains work the best:

  • .com – For commercial use
  • .edu – For educational use
  • .gov – For national and government agencies
  • .int – For international organizations
  • .net – For networks
  • .org – For organizations

In 1998 there were added 472 gTLDs that you can choose from for every international business imaginable and the full list is available here.

Country Code Top-level Domains (ccTLD)

There are as many country code TLDs as there are countries.

Therefore, we will not list the full list.

Sponsored Top-Level Domains (sTLD)

There are very low chances that your business belongs to one of these groups  Nevertheless, if you do, here are the TLDs you could choose:

  • .aero – For members of the air-transport industry
  • .asia – For companies, organizations, and individuals in the Asia-Pacific region
  • .cat – For Catalan linguistic and cultural community
  • .coop – For cooperative associations
  • .edu – For post-secondary institutions accredited by an agency recognized by the U.S. Department of Education
  • .gov – For United States Government
  • .int – For organizations established by international treaties between governments
  • .jobs – For human resource managers
  • .mil – For United States Military
  • .mobi – Providers and consumers of mobile products and services
  • .museum – For museums
  • .post – For postal services
  • .tel – For businesses and individuals to publish contact data
  • .travel – For travel agents, airlines, hoteliers, tourism bureaus, etc.
  • .xxx – For pornographic sites

Infrastructure Top-Level Domain

Under this category, there is only one TLD – .arpa

This TLD is used exclusively for technical infrastructure purposes.

While the name was originally the acronym for the Advanced Research Projects Agency (ARPA), the funding organization in the United States that developed one of the precursors of the Internet (ARPANET), it now stands for Address and Routing Parameter Area.

Test top-level domains

The Internet Engineering Task Force reserved the DNS labels:

  • .example
  • .invalid
  • .localhost
  • .test 

These TLDs cannot be installed into the root zone of the Domain Name System.

The reason for reservation of these top-level domain names is to reduce the likelihood of conflict and confusion. This allows the use of these names for either documentation purposes or in local testing scenarios.

I hope now you know what is a TLD

To re-cap, each TLD includes an independent registry controlled by a specific organization. Which is managed under the guidance of the Internet Corporation for Assigned Names and Numbers (ICANN).

If you have any questions, feel free to ask in the comment section below.

If you have other Search Engine Related Questions visit our SEO FAQ section.


Written by Jane