Question 1

What is my public IP?

Accepted Answer

Your public IP appears at the top of this page and is the address the server receives to respond to you.

Question 2

What is the difference between IPv4 and IPv6?

Accepted Answer

IPv4 uses 32 bits and IPv6 uses 128 bits. IPv6 provides many more addresses.

Question 3

Can my IP change?

Accepted Answer

Yes. Home connections often use dynamic IPs that may change after reconnecting or according to the provider.

Question 4

Does an IP identify a person?

Accepted Answer

Not by itself. It can identify a connection or network at a given time, but it does not prove who uses the device.

Question 5

Can a website locate me from my IP?

Accepted Answer

It can estimate country, region or provider using databases, but the location is not exact.

Question 6

What is the difference between public and private IPs?

Accepted Answer

The public IP connects your network to the Internet; the private IP identifies devices inside your local network.

Question 7

Does a VPN change my public IP?

Accepted Answer

Usually a VPN makes services see the VPN server IP instead of the IP of your connection.

Question 8

Is it dangerous for a website to know my IP?

Accepted Answer

An IP is needed to answer a connection, but it does not automatically reveal your identity or physical address.