What Is the Numerical Address of a Web Site?

Each website has a numerical identifier known as an IP address. Each IP address is unique. Special computers known as servers run websites. Every computer connected to the Internet has an IP address.

Who Assigns IP Addresses?

1. An ISP, or Internet Service Provider, assigns an IP address. The address can be static or dynamic based on the preference of the ISP.

Dynamic vs. Static

2. Dynamic IP addresses change every time a computer connects to the Internet. Static addresses remain the same.

Notation

3. An IP address is comprised of nine to ten digits expressed in a dotted decimal notation. For instance, the IP address for Google is 216.239.51.99.

What IP Addresses Are Used For

4. IP addresses tell the ISP where a computer is located and which computer is being used. ISPs keep a log of all IP addresses assigned at any given time. Websites can also store IP addresses as a way to manage traffic.

How the Information is Used

5. Tracking IP addresses allows law enforcement officials to track illegal behavior, such as illegal downloading or pornography, and to successfully prosecute criminals.