Each DNS record has a specific purpose. The most common record types are:
A record
Directs a hostname to an IPv4 address. It is commonly used to connect a domain or subdomain to a web server.
AAAA record
Directs a hostname to an IPv6 address.
CNAME record
Creates an alias that points one hostname to another hostname. A CNAME normally cannot be used at the root of a domain unless the DNS provider supports an equivalent feature.
MX record
Specifies the servers responsible for receiving email for the domain. Lower priority numbers are generally attempted first.
TXT record
Stores text-based information used for purposes such as domain verification, SPF, DKIM and DMARC email authentication.
NS record
Identifies the authoritative nameservers responsible for the domain's DNS zone.
Do not remove existing MX, SPF, DKIM or DMARC records unless you understand how the change will affect email delivery.
