If DNS record management is available for your subdomain, you can add and remove records from the subdomain's DNS records page.

Important

DNS record management is a paid feature — it is never included for free, even on a free-type subdomain registration. See Premium and credits for how credits work.

What is a DNS record?

A DNS record tells the internet where to send traffic for your subdomain, or provides other information about it. For example, an A record points a name to a numeric IPv4 address.

Supported record types

20dragons supports these record types for customer subdomains: A, AAAA, CNAME, DNAME, TXT, NS, DS. (MX records are not available for customer subdomains.)

Each record has: a name (FQDN, which must be your subdomain itself or a name under it), a type, a value, and a TTL (time to live, in seconds, from 300 to 604800 — 5 minutes to 7 days; the default is 3600).

A / AAAA

Points a name to an IPv4 (A) or IPv6 (AAAA) address.

myproject.example-domain.com.   A      192.0.2.10
myproject.example-domain.com.   AAAA   2001:db8::10

Common mistake: entering a hostname instead of a numeric address.

CNAME

Points a name to another hostname instead of an address directly.

www.myproject.example-domain.com.   CNAME   myproject.example-domain.com.

Common mistake: adding other records (like TXT) on the same name as a CNAME — most DNS systems do not allow this.

DNAME

Redirects an entire subtree of names to another domain, similar to CNAME but applied to everything underneath the name.

TXT

Stores arbitrary text, often used for verification codes or configuration.

myproject.example-domain.com.   TXT   "some-verification-value"

NS

Delegates a name to other nameservers. The value must be a valid hostname, and is checked against a list of disallowed nameservers.

DS

Used for DNSSEC. The value has four parts: key tag, algorithm, digest type, and digest (a hex string).

Deleting a record

Deleting removes the full set of records for that name and type at once (all values under that name and type together, not a single value if there are several). You will be asked to confirm before it happens. A record can be locked, in which case it cannot be deleted until the lock is removed.

Copying records between your subdomains

If you manage more than one subdomain, you can copy DNS records from one to another. Choose the target subdomain and which record types to include, preview the result (records that already exist on the target, or that are locked, are skipped), and confirm the copy.

DNS changes take time to appear

DNS changes are not always visible immediately, even after they are saved correctly. This is normal and is called propagation. See My DNS change is not visible yet.