---
title: "Resource record type enum"
url: "https://help.internetx.com/en/api/core-resource-record-type-enum/"
lang: "en"
section: "API reference — API reference (XML/JSON)"
breadcrumb: "API documentation (JSON/XML) > Enums and constants"
updated: "2023-09-26"
---

# Resource record type enum

## Description

Specifies the Resource Records. Is used for rr / rr\_ad/ rr\_rem.

## Possible values

-   A = IPv4 host address
-   AAAA =  IPv6 host address
-   MX = Mail Exchange – the mail server responsible for this domain
-   CName = Canonical name for a host (the domain with this Resource Record is an alias)
-   NS = hostname of an authoritative name server
-   PTR = Domain Name Pointer (for reverse mapping to assign IP addresses to names). Please contact support for this.
-   TXT = free text
-   HINFO = Host information (processor type and operating system)
-   SRV = Service
-   NAPTR = (Naming Authority Pointer) Extension of the A Resource Record

Only with DNSSEC :

-   DS = "Delegation Signer", used for linking DNSSEC signed zones
-   SSHFP = Secure Shell (Key) Fingerprint
-   TLSA = Supported SSL/TLS Certificates

For more information on the Resource Record types: [Wikipedia Resource Records](https://en.wikipedia.org/wiki/Domain_Name_System#Resource_records)