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
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