This tool will process for finding the origin IP address is achieved by searching the DNS (Domain Name Servers) until a match on the domain name is found. This process is also known as DNS lookup, NSLOOKUP or (erroneously) IP lookup. The process of finding IP address from the host name (or domain name) involves sending a message to the IP address and requesting the computer located at that IP address to return by name. Usually this will be the same as the domain. However, many computers host many domains so the hostname may be one of the domain names hosted or it could be something totally different. There are some special IP addresses. 127.0.0.1 is always the IP address of every computer. No matter which computer you use, it will always have an IP address of 127.0.0.1 and a name of 'localhost'. In addition, a computer can have more than one IP address. In order to connect to other computers it will have an IP address that is known to other computers.
You can check what's IP that connected from Hostname, DNS Server, Nameserver, etc. This is Host To IP Tools that you can use it everytime. The following are a collection of online IP Tools that can be used to quickly get information about IP Addresses, Web Pages and DNS records. These tools are placed here to be a quick reference whether you are assessing your organizations systems, or popping boxes on a penetration testing engagement