Every website you visit sees your public IP address — the number your internet provider assigns to your connection. Our free What Is My IP tool shows you exactly what this site sees: your IPv4 or IPv6 address, plus the browser user-agent string sent along with the request. It runs automatically when the page loads and requires no signup.
People use it for practical reasons: confirming a VPN actually changed their visible address, whitelisting their IP in a firewall or web host’s access list, troubleshooting “access denied” errors on their own servers, or checking whether their connection dropped to a different address after a router restart. Developers use it to test that their apps detect client IPs correctly behind Cloudflare and other proxies.
Because the detection accounts for proxy headers, the address shown is what real-world services log about you — which makes it a good reality check on privacy tools. If you use a VPN or proxy, compare the result against your real address to verify the tunnel is working.
What Is My IP
See the public IP address this website sees for you, plus your browser's user agent string.
How to use
- Open the tool — your IP address is detected automatically.
- Read your public IP address from the result panel.
- Note the user agent string identifying your browser.
- Click “Refresh” to re-detect after changing networks or enabling a VPN.
FAQs
Is my IP address personal information?
It can identify your connection roughly to a city and ISP, but it is not your name or address. Still, avoid posting it publicly — it is the address attackers probe when scanning for open services.
Why does my IP change sometimes?
Most home connections use dynamic IPs that change on router restarts or ISP rotations. Businesses usually pay for static IPs. If yours changes often, that is normal for residential broadband.
The IP shown does not match my device. Why?
You are likely behind a VPN, proxy or carrier-grade NAT. The tool reports the address the internet sees — which is exactly what websites and firewalls use to identify you.