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Record Types


A Record

Definition: A records point an FQDN (fully qualified domain name) to an IP address and can be configured at the root of a domain. Only works for IPv4 addresses.

Uses: The most commonly used record type. Used to point a domain to a server.

CNAME Record

Definition: CNAME records, also known as Alias records, point a hostname to another hostname or FQDN.

Uses: CNAME records are commonly used to point multiple hostnames to a single location or point a domain to a CDN’s hostname.

AAAA Record

Definition: AAAA records point an FQDN (fully qualified domain name) to an IPv6 address and can be configured at the root of a domain.

Uses: Used to point a domain to a server.

ANAME Record

Definition: ANAME records point the root of your domain to a hostname. Combines the functionality of a CNAME record with an A record.

Uses: ANAME records are commonly used to point multiple hostnames to a single location or point a domain to a CDN’s hostname.

HTTP Redirection Record

Definition: HTTP Redirection Records are a combination of an A record and use an application server which looks up the destination URL of the A record in a database.

Uses: Can be used to redirect your domain to another website.

MX Record

Definition: MX records are used by mail servers to determine where to deliver email for a domain.

TXT Record

Definition: TXT or text records are unformatted text with a host or other name.

Uses: Can be used for SOA, DKIM records, or non-standard record types.

HINFO Record

Definition: HINFO records are system information records used to provide a definition of the hardware and operating system in use at a host. For security reasons these records are rarely used on public servers.

NAPTR Record

Definition: NAPTR records provide a mapping from a domain to the SRV record containing the instructions for contacting a SIP server with the specific transport protocol in the NAPTR service field, i.e. NAPTR records provide a mechanism for the called domain to specify which protocols it prefers a SIP request to use.

CAA Record

Definition: Certification Authority Authorization (CAA) records allow a domain name holder to specify one or more Certification Authorities (CAs) authorized to issue certificates for that domain.

CERT Record

Definition: CERT records store certificates and related certificate revocation lists in the DNS.

NS Record

Definition: NS Records indicate which name servers are authoritative for the domain. NS Records are used in the event that another external DNS provider will be used in conjunction with Constellix DNS.

PTR Record

Definition: Pointer (PTR) records are used to map an IP address to a hostname.

Uses: Used in a reverse DNS configuration.

RP Record

Definition: RP (Responsible Person) records include information about the mailbox name for the responsible person(s) for the domain.

SPF Record

Definition: SPF records are used for email validation to mitigate spam.

SRV Record

Definition: SRV records provide information on available services for systems, most commonly used with SIP configurations.