How names resolve to servers.
DNS
The system translating domain names into server addresses.
NAMESERVERS
The servers authoritative for a domain's DNS records.
Changing these changes where the domain's records are managed.
A RECORD
Points a name at an address.
The record that sends your domain to your hosting.
CNAME
Points a name at another name.
MX RECORD
Directs email for the domain to a mail server.
TXT RECORD
Holds text, used for verification and for authentication records.
SPF
A TXT record listing which servers may send mail for your domain.
Only one SPF record is permitted.
DKIM
A signature on outgoing mail, verified against a key in DNS.
DMARC
A policy telling receiving servers what to do with mail failing SPF and DKIM.
TTL
How long a record may be cached before being checked again.
PROPAGATION
The period during which a DNS change spreads.
GLUE RECORD
An address record for a nameserver within the domain it serves.
