Skip to content
Sign In Create account

DNS

How DNS works, and the record types

What a DNS zone is, what each record type does, and which ones you're likely to need.

2 min read Updated

The Domain Name System turns a name people remember — yourdomain.com — into the addresses computers use. Each domain has a zone: a small table of records that answers questions like "where is the website?" and "where should mail for this domain go?".

Nameservers hold the zone

Your domain's nameservers are the servers that hold its zone. Records only take effect on the nameservers the domain actually uses:

  • If your domain uses our nameservers, you edit its records in the control panel — see Manage your DNS records.
  • If it uses another host's nameservers, you edit its records at that host. Changes in our control panel will have no effect until you point the domain back to us.

The record types

TypeWhat it doesTypical use
APoints a name at an IPv4 addressYour website: yourdomain.com203.0.113.10
AAAAPoints a name at an IPv6 addressThe same, for IPv6
CNAMEPoints a name at another namewwwyourdomain.com, or a service like a shop platform
MXSays where mail for the domain is deliveredYour email provider's mail servers
TXTHolds free textSPF, DKIM, and "prove you own this domain" checks
SRVAdvertises a service on a host and portCalendars, chat and VoIP services
NSDelegates a subdomain to other nameserversshop.yourdomain.com handled somewhere else

Names, values and TTL

Every record has three parts.

  • Name — which name it is for. Leave it empty for the domain itself, or type the part in front: www, mail, shop.
  • Value — the answer: an address, a hostname or a piece of text.
  • TTLtime to live: how long other servers may remember the answer before asking again. A short TTL makes changes arrive faster; a long one means fewer lookups.

Tip

Planning a move? Lower the TTL of the records you'll change a day before, then change them. Everyone picks up the new answer quickly.

Still stuck?

Open a ticket from your control panel and say which step you reached. A screenshot of what you see is the fastest way to show us.

Still stuck

Nothing here fits? Write to us.

Tell us what you are trying to do rather than what went wrong, and we will tell you whether it is something we can fix from here.

  • Answered by a person

    There is no ticket robot in front of us. What you write is what somebody reads.

  • Say what you are trying to do

    The fastest answers come from the message that explains the goal, not only the error.

  • Your services are already in front of us

    Sign in first and we can see the account the question is about without asking you to describe it.