Reverse DNS Lookup, Test reverse DNS (PTR) by IP address or hostname

  Example: or
DNS Server Response:
Reverse DNS is GOOD for IP address:
Direct link:

What's Reverse DNS?
Reverse DNS lookups for IPv4 addresses use a reverse IN-ADDR entry in the special domain In the domain a sequence of bytes in reverse order represent an IPv4 address, encoded as decimal numbers, separated by dots with the suffix For example, the reverse lookup domain name corresponding to the IPv4 address is A host name for can be obtained by issuing a DNS query for the PTR record for that special address Read more on wiki

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