Definitions for "PTR record"
Keywords:  addr, arpa, pointer, dns, aliases
See DNS record types, PTR record.
The pointer (PTR) resource record maps an IP address to a host name in a DNS reverse zone (those in the DNS domain).
Stands for Pointer Record. It is a host name for reverse mapping (IP-address-to-host-name). The opposite is forward mapping, using a Host (A) record.