If a hostname, it should only contain alphanumeric characters, as well as, periods, dashes and underscores.
If an IP address, it should only be an IPv4.
Want to verify the devices connected to your network? Or verify the IP address of a specific device? An IP lookup tool can verify an IP address and help check for any malicious activity.
An IP lookup tool can give you exact location details of an IP address. If you already know the IP address, you can find out the city, state, zip-code and country of an IP address instantly.
Capable of so much more, an IP lookup tool can even show you the Hostname of an IP address, and the Internet Service Provider who owns the IP address. Perfect for when you want to be extra secure.