AAAA Record Format

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The AAAA record is defined in RFC 3596. The RDATA section is composed of one element:

Element Description
address A 128-bit Internet address representing an IPv6 address

The canonical representation is:

AAAA <address>

where <address> is an IPv6 address and looks like 2001:db8::1.

For a broader explanation of what AAAA records are and how they work, see What Is an AAAA Record?

In DNSimple, the AAAA record is represented by the following customizable elements:

Element Description
Name The host name for the record, without the domain name. This is generally referred to as a “subdomain”. We automatically append the domain name. Leave it blank for the root domain.
TTL (Refresh Rate) The time-to-live in seconds. This is the amount of time the record is allowed to be cached by a resolver.
IPv6 Address The IPv6 address the AAAA record points to.

Formatting

Because the same IPv6 address can be written in different ways, DNSimple stores it in compressed form, as described in RFC 5952, Section 4.

Some examples:

  • If you provide the IPv6 address 2001:0000:0000:00FE:0000:0000:0000:CDEF, we will store it as 2001:0:0:fe::cdef.
  • If you provide the IPv6 address 2001:0db8::0001:0000, we will store it as 2001:db8::1:0.
  • If you provide the IPv6 address 2001:db8:0:0:0:0:2:1, we will store it as 2001:db8::2:1.
  • If you provide the IPv6 address ::ffff:c000:0280, we will store it as ::ffff:192.0.2.128.

Have more questions?

If you have any questions or need assistance managing AAAA records, contact support, and we will be happy to help. You can also read more about DNS hosting at DNSimple.