TLD Types & Classification
How top-level domains are categorized: gTLDs, ccTLDs, sTLDs, and the new gTLD program.
TLD (Dominio de Nivel Superior)
The last segment of a domain name (e.g., .com, .org, .uk).
gTLD (Dominio de Nivel Superior Genérico)
Top-level domain with 3+ characters not tied to a specific country.
ccTLD (Dominio de Nivel Superior con Código de País)
Two-letter TLD assigned to a specific country or territory.
Nuevo gTLD (Nuevo Dominio de Nivel Superior Genérico)
Generic top-level domains introduced through ICANN's 2012+ New gTLD Program.
TLD Heredado (Legacy TLD)
Original gTLDs (.com, .net, .org) that predate the New gTLD Program.
sTLD (Dominio de Nivel Superior Patrocinado)
Specialized TLD with eligibility requirements, managed by a sponsoring organization.
TLD de Marca (.brand)
New gTLD using a company's brand name, operated exclusively by that company.
TLD Geográfico (GeoTLD)
New gTLD representing a geographic region (city, state, or territory).
IDN TLD (Dominio de Nivel Superior de Nombre de Dominio Internacionalizado)
TLD written in non-Latin scripts (Arabic, Chinese, Cyrillic, etc.).
SLD (Dominio de Segundo Nivel)
The part of a domain name directly left of the TLD (e.g., 'example' in example.com).
FQDN (Nombre de Dominio Completamente Calificado)
Complete domain name with all labels from host to TLD (e.g., www.example.com.).
TLD Restringido
TLD that limits registration to eligible organizations or individuals.
TLD de infraestructura (.arpa)
Special-purpose TLD (.arpa) reserved exclusively for DNS infrastructure and protocol use.
TLDs de prueba reservados
IANA-reserved TLDs (.test, .example, .invalid, .localhost) guaranteed never to resolve in the public DNS.
Operador TLD (operador de registro)
Entity authorized by ICANN to administer all domain registrations within a specific TLD.
TLD delegado
TLD formally added to the DNS root zone by IANA and resolvable on the public internet.
TLD ASCII
TLD composed entirely of ASCII characters, natively compatible with all DNS software without encoding.
TLD abierto
TLD with unrestricted registration policies open to any person or entity worldwide.
TLD comunitario
TLD designed to serve a specific community of interest with eligibility restrictions and community-aligned policies.
TLD genérico restringido
Legacy gTLDs (.biz, .name, .pro) intended for specific uses but with limited enforcement of registration restrictions.
Cadena TLD
The proposed character sequence for a new TLD, evaluated by ICANN for similarity, geography, and conflicts.
TLD de marca (.brand)
Company-operated new gTLD using a brand name as the extension, unavailable for public registration.