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A top-level domain (TLD), also called a domain extension or domain suffix, is the part after the final dot in a web address, such as .com, .org or .io. Explore our complete TLD list to search, compare and analyze global domain extensions, including gTLDs, ccTLDs, new gTLDs and specialized TLDs.

What Is a TLD?

A Top-Level Domain (TLD) is the last part of a domain name that appears after the final dot. It is also commonly called a domain extension or domain suffix.

For example:

  • example.com → .com is the TLD
  • company.org → .org is the TLD
  • startup.ai → .ai is the TLD
  • business.in → .in is the TLD
  • website.co.uk → .uk is the top-level domain, while .co.uk is a country-code second-level domain structure.

TLDs are part of the Domain Name System (DNS) hierarchy and help identify how a domain is categorized or geographically associated. Different extensions can have different purposes, registration requirements, policies, restrictions and levels of availability.

Our TLD database lets you explore domain extensions, search for specific TLDs and discover domain data associated with each extension. You can use it to research popular, country-code, generic, new and specialized domain extensions.

TLD vs Domain Name

A domain name and a TLD are not the same thing.

In salesdata.in:

  • salesdata is the second-level domain
  • .in is the TLD
  • salesdata.in is the complete domain name

Understanding this distinction is useful when researching domain availability, expired domains, domain registrations and domain portfolios.