General Logic

An IP (Internet Protocol) address is a unique numerical label assigned to every device connected to a computer network that uses the Internet Protocol for communication. It serves two main functions: host or network interface identification and location addressing. Think of it like a digital home address that allows data to find your device.

IPv4 (Internet Protocol version 4) uses 32-bit addresses (e.g., 192.168.1.1) and allows for about 4.3 billion unique addresses. IPv6 uses 128-bit addresses (e.g., 2001:0db8::) and allows for a virtually infinite number of addresses. IPv6 was created because we are running out of IPv4 addresses due to the massive growth of the internet.

You can find your public IP address instantly by visiting our Homepage. To find your local (private) IP address on Windows, open Command Prompt and type `ipconfig`. On Mac, go to System Settings > Network.

A Public IP address is assigned by your ISP and is unique across the entire internet; it identifies your home network to the outside world. A Private IP address is used only within your local network (LAN) to communicate between devices (like your phone and printer) and is not routable on the internet (e.g., 192.168.x.x).

Most residential internet connections use Dynamic IP addresses, which means your ISP may change your IP periodically (e.g., when you restart your router). Static IP addresses, which never change, are typically purchased by businesses that need to host servers or services.

No. An IP address generally only reveals your approximate location, such as your city, region, or ZIP code. It usually points to your ISP's nearest infrastructure hub, not your front door. However, your ISP knows exactly who you are and can reveal this info to law enforcement with a subpoena.

Your Default Gateway IP is the address of your router on your local network. It acts as the exit point for all traffic leaving your device to go to the internet. Commonly, this is `192.168.1.1` or `192.168.0.1`.

`127.0.0.1` is a special IP address known as 'localhost' or the 'loopback address'. It is used to establish a connection to the same computer you are currently using. It allows you to test network applications without sending data out to a physical network.

A subnet mask is a 32-bit number that defines which part of an IP address refers to the network and which part refers to the host (device). A common mask is `255.255.255.0`, which (in simple terms) means the first three numbers of the IP identify the network, and the last number identifies the specific device.

Websites may block IPs for several reasons: suspected malicious activity (like hacking attempts), spamming, geo-restrictions (content only available in certain countries), or if your IP was previously used by a bad actor (common with shared public VPNs).