The Get IP by Host or Convert Host to IP was created to help with finding the IP address. The process of finding the 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.
A domain name is the name that is purchased from a registrar. It will be something like dzeessh.com or google.com. Note that there is no www at the beginning of a domain name. A domain name can be subdivided into sub-domains - for example www.dzeessh.com. Any requests for a sub-domain (e.g. www.dzeessh.com) are converted to an IP address by DNS and the IP address is used to route the request through the network until it reaches the host machine.
Just paste your URL to the input above and click to the button "Check" and you will get IP and Host Name from your URL.