What is a PTR (pointer) record?
A pointer record* resolves an IP-address to a fully qualified domain name (FQDN).
This is an example of a PTR record:
Why use a PTR? Some companies use this as part of their security protocol.
A pointer record’s main use is to check whether a server name matches/associates with the IP address from where the connection was initialized.
To request a PTR record customer has to either contact our technical support team or send the following information to a moderator at the Comcast Business forum community.
* PTR records are also called Reverse DNS records. To learn more about DNS, click here.