Domain Naming System (DNS) is a standard protocol by which human friendly domain names like facebook.com are translated to machine friendly IP addresses like 192.168.0.1
What does Advanced DNS tool do?
Advanced DNS tool queries a DNS server to fetch records for a given Domain or IP. Unlike the regular DNS tool, here you can customize the type of query to run and various other options.
Which DNS server does this tool use?
The DNS server field is set to local DNS by default. It is a non-caching DNS server. You can change it to any DNS server you wish to use.
How does it work with IP addresses?
DNS works only with human friendly domain names like google.com. When a IP address is given, it does a reverse IP search to find the domain name registered with the IP and then queries records for that domain (if found).