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

IP/Host:
  Example: 209.85.171.100 or google.com
Domain IP: 202.179.177.21
DNS Server Response: 202.179.177.21
Reverse DNS is BAD for IP address: 202.179.177.21
Direct link: http://www.myiptest.com/staticpages/index.php/Reverse-DNS-Lookup/naver.co.kr

What's Reverse DNS?
Reverse DNS lookups for IPv4 addresses use a reverse IN-ADDR entry in the special domain in-addr.arpa. In the in-addr.arpa domain a sequence of bytes in reverse order represent an IPv4 address, encoded as decimal numbers, separated by dots with the suffix .in-addr.arpa. For example, the reverse lookup domain name corresponding to the IPv4 address 10.12.13.140 is 140.13.12.10.in-addr.arpa. A host name for 1.2.3.4 can be obtained by issuing a DNS query for the PTR record for that special address 4.3.2.1.in-addr.arpa. Read more on wiki


Recent Queries: naver.co.kr, welovepreorder.com, iaap.org, sherihan.net, 211.115.77.236, chaidezpits.com, jadegreenimage.xs2web.org, lemoda.ru, liicom.ru, lefarm.ru, friv-0001.info-o-majitelovi.info, 211.144.100.217, mugshot.1sentimancho.wordpress.com, paintability.animeviews.org, ahxsjhotel.com

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