HostLookup

HostLookup[name] gives the IP address for the host with the specified name.

HostLookup[address] gives the host name for the host at the specified IP address.

HostLookup[spec, prop] gives a specified property of the host.

HostLookup[spec, All] gives an association of properties found for the host.

Examples

Look up the IP address of a host:

HostLookup["www.wolfram.com"]
(* "140.177.1.18" *)

Get all properties for a host:

HostLookup["www.wolfram.com", All]
(* <|"Name" -> "www.wolfram.com", "IPAddress" -> ...| *)

Please visit the official Wolfram Language Reference for more details.