Glossary
R
Registrant
Natural or legal person who assumes the status of owner of the domain name or mere applicant before validating the compliance of the registration with .PT Terms and Conditions (Registration Rules).
Registrar
Entity through which domain names are registered. During the registration process, the registrar verifies that the requested domain name meets the registry requirements and submits the name to the appropriate registry. Registrars are also responsible for collecting the necessary information from registrants and making their data available through WHOIS. After registration, registrants can update their domain settings through their registrars.
Registry
Entity responsible for the registration, management and maintenance of domains under a top-level domain (TLD).
Registry Lock Service
Registry Lock is a premium service provided by .PT that provides additional security protection to the data associated with domain names, preventing unauthorized alterations, transfers or removals.
Registry-Registrar Protocol
A contract between a registry and a registrar. This agreement sets out the conditions under which a registrar agrees to provide domain name registration services for a top-level domain.
RIR
There are five RIR - Regional Internet Registries in the world. RIRs manage, distribute, and register Internet number resources (IPv4 and IPv6 address space and Autonomous System (AS) Numbers) within their respective regions.
Root Server
An authoritative name server that responds to queries about the contents of the root zone.
Root Zone
The top of the Domain Name System hierarchy. The root zone contains all the information you need to find top-level domains. Each edition of the root zone has a unique serial number. All root servers are expected to have and respond to queries about the current edition of the root zone.