Commonly used for academic websites, such as universities. However, .ac is not to be confused with the official academic domains used by several countries such as the United Kingdom (.ac.uk), India (.ac.in) or Indonesia (.ac.id). Also used in the accounting, consulting, and air-conditioning industries.

(Tertiary education, further education colleges and research establishments) and learned societies

This is an open TLD; any person or entity is permitted to register. Originally intended for use by accountants.

Restricted to individuals and organizations that can verify participation in architecture industry

This is an open TLD; any person or entity is permitted to register.

Belgium country code. Also unofficially used in the Canton of Bern, Switzerland

This is an open TLD; any person or entity is permitted to register; however, registrations may be challenged later if they are not held by commercial entities in accordance with the domain%u2019s charter.

This is an open TLD; any person or entity is permitted to register.

Marketed as a global domain. Anyone can register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register. Originally intended for use by companies, it is now used by all types of entities including nonprofits, schools and private individuals.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

Use in Wales where the primary or content language is Welsh

German postal address for administrative contact (admin-c) required. Proxy registrations are allowed.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

Restricted to individuals and companies in European Union, Switzerland, Norway, Iceland and Liechtenstein

Also unofficially used by video game related websites

Only government bodies are allowed this suffix.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

Persons or businesses with a "real and substantive" connection with the island of Ireland

This is an open TLD; any person or entity is permitted to register. intended for informational websites

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

Available to individuals or entities who have a physical address in London

This is an open TLD; any person or entity is permitted to register.

Must be able to show the registrant is a private limited company in the UK

Also unofficially used and marketed as a domain hack (for example love.me, meet.me, etc.).

This is an open TLD; any person or entity is permitted to register.

Must be used for mobile-compatible sites in accordance with standards.

This is an open TLD; any person or entity is permitted to register; however, registrations may be challenged later if they are not by individuals (or the owners of fictional characters) in accordance with the domain%u2019s charter.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register. Originally intended for use by networks, it is now used generally.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register. Originally intended for use by non-profit organisations, and still primarily used for that reason.

This is an open TLD; any person or entity is permitted to register; however, usually for non-profit organisations

This is an open TLD; any person or entity is permitted to register.

Registrant must be able to prove they are a public limited company

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

Registrants must be able to provide proof of educational body.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register. Originally intended for use by companies, it is now used by all types of entities including nonprofits, schools and private individuals.

This is an open TLD; any person or entity is permitted to register. Originally intended for use by companies, it is now used by all types of entities including nonprofits, schools and private individuals.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.

This is an open TLD; any person or entity is permitted to register.