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

IP/Host:
  Example: 209.85.171.100 or google.com
Domain IP: 220.228.6.234
DNS Server Response: 220.228.6.234
Reverse DNS is BAD for IP address: 220.228.6.234
Direct link: http://www.myiptest.com/staticpages/index.php/Reverse-DNS-Lookup/sex888.com.tw

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: phpfox.ypserver.net, sudmedoc.pf-condo.fr, 122.226.213.38, famousdeath.makeitburninc.com, diakon-diakonin-online.de, toplace.com, 59.55.168.148, www.foxduck.de, rdshaw.googlebot.vacau.com, breathingspace.photo.utopiamall.com, 111.72.121.216, hotheka.cn, edgarpineda.couponsites.info, 202.100.200.1, pooya.in

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