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Glossary of terms

The glossary of domain related abbreviations and terms shall help you to find your way in the complex world of domains.

A

See: A Record

A Record

32-bit IPv4 address, used to map hostnames to an IP address of the host test.example.com. 28800 IN A 192.0.2.1

AAAA

See: AAAA Record

AAAA Record

128-bit IPv6 address, used to map hostnames to an IP address of the host. test.example.com. 28800 IN AAAA 2001:0db8:85a3:0000:0000:8a2e:0370:7334

ACRA

Accounting and Corporate Regulatory Authority

ADR

Alternative Dispute Resolution

API

Application Programming Interface

ccTLD

Abbreviation for country code top level domain. Examples are .de for Germany, .fr for France and .us for the USA. The ccTLDs are geographically defined and composed of two letters.

CNAME

See: CNAME Record

CNAME Record

Alias of the domain name, the DNS lookup will continue by retrying the lookup with the new name. foo.example.com. 28800 IN CNAME bar.example.com.

CoCCA

Country Code Administrators Incorporated

CRT

Certificate

CSR

Certificate Signing Request

DAS

Domain Availability Service

Domain

An internet address, also called web address, e.g. key-systems.net. It helps to identify computers on the Internet. The domain is part of the URL of a website (e.g. http://www.key-systems.net). It is composed of a term (key-systems), a subsequent point (.) and a top level domain (e.g. .net). The term which prefixes the top level domain, can be divided into further levels (Subdomain). A domain describes a name space on the Internet.

Domain extension

See: Top level domain

EAP

Early Access Phase

EPP

Extensible Provisioning Protocol

FoA

Form of Authorisation

GDPR

General Data Protection Regulation

HKDNR

Hong Kong Domain Name Registration Company Limited

HOMER

Hosting Management Environment Repository

IANA

Internet Assigned Numbers Authority https://www.iana.org/

ICANN

Internet Corporation for Assigned Names and Numbers https://www.icann.org/

IEEE

Institute of Electrical and Electronics Engineers

IETF

Internet Engineering Task Force https://www.ietf.org/

IPS TAG

Internet Provider Security Tag used to identify .UK domain registrars

IRTP

Inter-Registrar Transfer Policy

LoA

Letter of Authorisation

MX

See: MX Record

MX Record

Mail exchange record, maps a domain name to a mailserver for that domain. Composed of priority, a 16 bit integer, and the hostname of the mailserver. example.com. 28800 IN MX 10 mail.example.com.

NAPTR

See: NAPTR Record

NAPTR Record

Naming Authority Pointer, allows regular expression based rewriting of domain names which can then be used as URIs, further domain names to lookups, etc. NAPTR records are composed of a priority, a preference, which helps to order records with identical priority, similar to the SRV records weight, a flag for the returned record type, a service name, which is offered by the server, a regular expression rule and a replacement. srv.ex.com. 28800 IN NAPTR 100 10 "A" "" "!^.*$!prodsrv.ex.com!"

NAST

Name Server Tester

NDA

Non-Disclosure Agreement

NS

See: NS Record

NS Record

Delegates a DNS zone to use the given authoritative name servers. ns1.example.com. 28800 NS nameserver.example.org.

OPN

Operations and Notifications

OT&E

Operational Test & Evaluation

PCA

Persona De Contacto Administrativo

PCF

Persona De Contacto De Facturacion

PCT

Persona De Contacto Tecnico

PIR

Public Interest Registry http://pir.org/

PoA

Power of Attorney

POSIX

Portable Operating System Interface

RAA

Registrar Accreditation Agreement

RNH

Registered Name Holder

ROID

Repository Object IDentifier

RR

Resource Record

RRP

Registry Registrar Protocol

SLA

Service Level Agreement

SOAP

Simple Object Access Protocol

SRF

Secretaria da Receita Federal

SRS

Shared Registry System

SRV

See: SRV Record

SRV Record

Service location record, used for newer protocols instead of creating protocol-specific records such as MX. The SRV record is composed of a priority, a weight, which serves as second level priority between services with identical priority, a port, the TCP or UDP port where the service can be found, and the target, the name of the service providing host. _jabber._tcp.example.com. 28800 IN SRV 0 5 5060 jabber.example.com

Top level domain

Abbreviation: TLD, viewed from the right hand side, the first character group (.net) and thus highest level of the domain name (key-systems.net). Domain names are composed of a sequence of characters separated by points. Those character groups match hierarchically arranged name spaces. The hierarchy of the character groups declines from right to left.

TXT

See: TXT Record

TXT Record

Free definable, descriptive text. test.example.com. 28800 IN TXT "Free T-Shirts for all!"

UDAI

Unique Domain Authenthication ID

UDRP

Uniform Domain Name Dispute Resolution Policy

VAT

See: VAT ID

VAT ID

Value Added Tax identification number

WDRP

Whois Data Reminder Policy

X-HTTP

See: X-HTTP Record

X-HTTP Record

X-HTTP records are pseudo resource records in our system representing webforwardings. The resource data is composed of redirection type (REDIRECT or FRAME) and the target. Note that pseudo records will neither appear in the records list nor in the exported BIND file. The creation of a X-HTTP pseudo record will also add an A record though, which can not be deleted as long as the forwarding exists. forwarding.example.org. 28800 IN X-HTTP REDIRECT http://target.example.com

X-SMTP

See: X-SMTP Record

X-SMTP Record

X-SMTP records are pseudo resource records in our system representing mailforwardings. Note that pseudo records will neither appear in the records list nor in the exported BIND file. The first creation of a X-SMTP pseudo record will also add a MX record though, which can not be deleted as long as any mailforwarding exists. The example shows a forwarding from 'itsame@mario.example.org' to 'mariobros@example.com'. mario.example.org. 28800 IN X-SMTP itsame@ MAILFORWARD mariobros@example.com

Wedomains :)