About This Tool
Every device connected to the internet has a public IP address assigned by its internet service provider. This IP address is visible to every website and service you connect to, and it is used for routing traffic back to your device. There are two versions of IP addresses in use today: the older 32-bit IPv4 (written like 203.0.113.42) and the newer 128-bit IPv6 (written like 2600:387:15:3717::4). This tool detects the address you are connecting with and, when your connection supports both, shows your IPv4 and IPv6 addresses together, along with reverse DNS, connection protocol, and browser details. Knowing your public IP is essential for setting up remote access, whitelisting your connection, configuring firewalls, troubleshooting network issues, checking VPN connections, and verifying that your DNS is resolving correctly.
How to Use
Simply visit this page and your public IP address is displayed automatically. No form to fill out, no button to click. If you arrive over IPv6, the tool also detects and displays your IPv4 address, and if you arrive over IPv4 it will show your IPv6 address when one is available, so you can see both. Click either address to copy it to your clipboard. Use the action buttons below to look up your IP location, check if your IP is on any spam blacklists, or run a WHOIS lookup on your IP allocation.
Tips & Best Practices
Most home and mobile connections now support both IPv4 and IPv6. If only one address appears, your network likely provides just that single protocol. Firewalls and access-control lists treat IPv4 and IPv6 as completely separate addresses, so when you whitelist your connection, be sure to add whichever version the remote service actually sees. If you are behind a VPN, the IP shown here will be your VPN exit node, not your real IP address, which is a good way to verify that your VPN is working correctly. If you see your ISP IP address while connected to a VPN, your VPN may have a leak. On shared or corporate networks, multiple devices share the same public IPv4 address through NAT. The reverse DNS hostname often reveals your ISP name and approximate location even without a geolocation lookup.
