IP Checker

Your public IP address is the identifier the rest of the internet sees when you connect, assigned by your internet provider rather than chosen by you. Knowing it is a routine part of troubleshooting, remote access and security work, and it is not information most people have memorised.

Common reasons to look it up include allow-listing an office connection for a database or admin panel, confirming that a VPN is actually routing your traffic, giving a support technician the address they need to trace a connection issue, and configuring dynamic DNS for a home server. Anyone who has been locked out of a firewall rule after their provider changed the address knows how often this comes up.

Most residential connections use dynamic addressing, so your address changes periodically, typically when the router restarts. If a service depends on a fixed address, ask your provider about a static option or use a dynamic DNS service that keeps a hostname pointed at whatever your current address happens to be.

How to use the IP Checker

1. Open the tool; your public address is detected automatically.
2. Note whether it is IPv4 or IPv6, since firewall rules treat them separately.
3. Copy the address to send to a support team or to enter in an allow list.
4. Reconnect your VPN and refresh to confirm the address changes as expected.
5. Recheck after a router restart if a service that relies on the address stops working.

Examples

• A remote worker sends their current address to IT so it can be added to a firewall allow list.
• A privacy-conscious user confirms a VPN is active by checking that the visible address is not their home one.
• A home server owner checks the current address before updating a dynamic DNS record.

Frequently asked questions

Why is my address different from the one shown by my router?

Your router reports the private address of your device on the local network. The public address is the one your provider assigns to the router itself.

Does my address change?

Most home connections are dynamic and change occasionally, often after a reconnection. Business connections are more likely to be static.

Does an IP address reveal my exact location?

Only approximately, usually to the city or provider region. It is not a precise location and can be far off for mobile or VPN connections.

What is the difference between IPv4 and IPv6?

IPv4 uses four numbers separated by dots; IPv6 uses longer hexadecimal addresses to provide a vastly larger address space. Many connections have both.

SwiftMultiTool — free online tools for everyone. Home · Blog · About · FAQ · Contact