A DNS record is a set of instructions that link a domain name to an IP address. DNS records are stored in DNS servers and are also known as zone files.
How DNS records work
When a user enters a domain name or URL into a browser, a DNS query is initiated.
The DNS servers communicate with each other to resolve the query.
The DNS servers use the DNS records to find the IP address associated with the domain name.
The DNS servers send the IP address to the web server that hosts the domain.
The web server sends the user to the requested website or email server.
Types of DNS records
A records: Map a domain name to an IP address
MX records: Route emails
CNAME records: Alias one domain name to another
SPF records: List the servers that can send emails from a domain
DKIM records: Digitally sign emails to verify they came from the claimed domain
DMARC records: Reference a domain's SPF and DKIM policies
DNS records are essential for making the internet fast and secure.
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