TLD Types & Classification
How top-level domains are categorized: gTLDs, ccTLDs, sTLDs, and the new gTLD program.
TLD (Domínio de Nível Superior)
The last segment of a domain name (e.g., .com, .org, .uk).
gTLD (Domínio de Nível Superior Genérico)
Top-level domain with 3+ characters not tied to a specific country.
ccTLD (Domínio de Nível Superior com Código de País)
Two-letter TLD assigned to a specific country or territory.
Novo gTLD (Novo Domínio de Nível Superior Genérico)
Generic top-level domains introduced through ICANN's 2012+ New gTLD Program.
TLD Legado (Legacy TLD)
Original gTLDs (.com, .net, .org) that predate the New gTLD Program.
sTLD (Domínio de Nível 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 (Domínio de Nível Superior de Nome de Domínio Internacionalizado)
TLD written in non-Latin scripts (Arabic, Chinese, Cyrillic, etc.).
SLD (Domínio de Segundo Nível)
The part of a domain name directly left of the TLD (e.g., 'example' in example.com).
FQDN (Nome de Domínio Completamente Qualificado)
Complete domain name with all labels from host to TLD (e.g., www.example.com.).
TLD Restrito
TLD that limits registration to eligible organizations or individuals.
TLD de infraestrutura (.arpa)
Special-purpose TLD (.arpa) reserved exclusively for DNS infrastructure and protocol use.
TLDs de teste 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 aberto
TLD with unrestricted registration policies open to any person or entity worldwide.
TLD comunitário
TLD designed to serve a specific community of interest with eligibility restrictions and community-aligned policies.
TLD genérico restrito
Legacy gTLDs (.biz, .name, .pro) intended for specific uses but with limited enforcement of registration restrictions.
String 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.