Online DNS lookup ip address location Full DNS lookup, find all subdomains
Law of the Titanic: If a device cannot malfunction, it will.

Enter IP address or hostname to find the PTR record.
Please note that PTR record is commonly needed only for mailservers.
If you do not know your mailserver ip address or FQDN, use first our full DNS report tool.
We will search for mailserver, and after you get a result, you can also check of this ip address or mailserver is in blacklist.

Subdomains lookup tool. This is a beta version, sorry for any bugs.
First, this tool will perform DNS lookup and than search engine lookup.
Plese note, if you go search for subdomains of zones like google.com, cnn.com etc.
than,in case that DNS lookup fails, you can get only "Time out" due to big number of subdomains.
Enter domain name eg site.com without WWW.