DNS
A Record
A DNS record that maps a domain name to an IPv4 address.
Definition
An A Record (Address Record) is a type of DNS record that maps a domain name to its corresponding IPv4 address. When someone tries to access a website or send an email to a domain, the A record tells the internet which server to connect to. For email, while MX records are more commonly used for mail routing, A records can serve as a fallback when no MX record exists.
Examples
example.com → 192.0.2.1mail.example.com → 192.0.2.25
Pro Tip
While A records can technically be used for email delivery, always configure proper MX records for reliable email routing.