A and AAAA Records

An A record maps a name to an IPv4 address. An AAAA record maps a name to an IPv6 address. Use these records to point a name to your server.

Fields

Field	Example	Notes
Name	`@` or `www`	Relative to the zone. `@` is the apex.
Type	`A` / `AAAA`
Content	`203.0.113.10`	An IPv4 (`A`) or IPv6 (`AAAA`) address
TTL	`14400`	Seconds. Default 4 hours.

Create

Console (zone-file view):

@   A     203.0.113.10        14400
www A     203.0.113.10        14400
ipv6 AAAA 2001:db8::10        14400

CLI:

zcp dns record-create --domain examplecom --name @    --type A    --content 203.0.113.10
zcp dns record-create --domain examplecom --name www  --type A    --content 203.0.113.10
zcp dns record-create --domain examplecom --name ipv6 --type AAAA --content 2001:db8::10

API: POST with { "name": "www", "type": "A", "content": "203.0.113.10", "ttl": 14400 }. See Manage DNS with the API.

Verify

dig A    www.example.com  +short   # 203.0.113.10
dig AAAA ipv6.example.com +short   # 2001:db8::10

Notes

Apex and IP address. Point the apex (@) at a fixed IP with an A or AAAA record. Do not use a CNAME at the apex. See CNAME.
Several addresses per name. A name holds several A records and several AAAA records. Creating a second A record at the same name adds it to the set. Publish round-robin A records this way. The same applies to AAAA. See Several values per name and type.
Dual stack. Publish both an A and an AAAA record for a name to serve IPv4 and IPv6 clients. The types differ, so the two records coexist.

See also: CNAME, Worked examples, Record types