What is a DNS PTR record?
The ‘pointer’ record is exactly the opposite of the ‘A’ record; the PTR address will give you the domain associated with a given IP address. The PTR record is used in reverse-lookup zones for reverse DNS searches.
Example of an PTR record:
| example.com | record type: | value: | TTL |
|---|---|---|---|
| @ | PTR | example.com | 71200 |
The value here represents an email address ,which can be confusing because it’s missing the ‘@’ sign, but in an SOA record admin.example.com is the equivalent of admin@example.com.