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

IP/Host:
  Example: 209.85.171.100 or google.com
Domain IP: 173.254.92.33
DNS Server Response: 173-254-92-33.unifiedlayer.com
Reverse DNS is GOOD for IP address: 173.254.92.33
Direct link: http://www.myiptest.com/staticpages/index.php/Reverse-DNS-Lookup/opennetsummit.org

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: opennetsummit.org, dell.latino.msn.com, irisgreenwell.sexy-flirt.nl, metrognome.ready-seo.blogspot.com, proxyseeker.info, bbcgreatlakes.com, dpwcommunications.co.uk, cichykacik.topnocleg.pl, www.knippling-schmitz.de, prismafotovideo.com, ask.blowjobvideo.us, subeertimes.com, infraredheaters.com, whois.gwebtools.com.br, www.topuledlight.com

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