# What Is My IP Address? IPv4, IPv6, Location & Fingerprint

> Your public IPv4 and IPv6 address, location, ISP and ASN, plus what the connection reveals: TLS and TCP fingerprints, OS and DNS resolver.

## What this page shows

Your public IP address is the address the rest of the internet sees when you connect, and most networks hand out two of them today: an IPv4 address and an IPv6 address. Both are captured here from the connection your browser opened, together with the location and network operator (ASN) an offline GeoIP database places them in.

The verdict weighs everything the connection revealed: the TCP fingerprint of your operating system, the TLS fingerprint of your browser, the distance implied by the round-trip time, your DNS resolver and the time zone of your device. A VPN, proxy or relay usually trips several of these checks at once; any single one has innocent explanations.

### What is my public IP address?

It is the address your router presents to the internet, shown at the top of this page for IPv4 and, if your network has it, IPv6. Devices inside your home share the IPv4 address through NAT, while each device usually has a public IPv6 address of its own. Websites, games and mail servers all see this address, and it changes when your ISP reassigns it or you move to another network.

### Why do I see two IP addresses?

Because the internet runs two address systems side by side. IPv4 addresses ran out years ago, so IPv6 was introduced with vastly more of them. A dual-stack connection has both, and your browser picks one for each site it opens. Both are shown here because they can belong to different networks and travel different paths.

### Can a website see my location from my IP address?

Roughly. Geolocation databases record which address blocks are used in which region, which gives the country reliably and often the city, but never a street. Mobile networks and VPNs are commonly placed at the operator's hub, far from the actual user. This site also checks whether the measured round-trip time even allows the location the database claims.

### What is a browser or TLS fingerprint?

The exact set and order of options your browser puts into its first TLS message, and the way it opens an HTTP/2 connection, are characteristic of the browser engine. Hashes of them, JA3 and JA4, identify the software without cookies and regardless of what the User-Agent string says. Bot detection relies on them, and so does this site's guess at your likely client.

### How does the VPN and proxy check work?

There is no single test. The verdict compares independent signals: whether the address belongs to a hosting provider or a published relay range, whether the operating system implied by your TCP packets matches what the browser claims, whether the distance implied by the round trip fits the address's location, your device's time zone, and what WebRTC and your DNS resolver reveal. Each check is listed with the weight it carried.

### Is anything stored?

The packet capture behind this page lives in memory for a few seconds and is keyed to your address. Geolocation uses an offline database on our own server, so your address is not sent to a third party, and the calculators run entirely in your browser.

Related terms: [Public IP address](https://ip-tools.eu/glossary.md#public-ip-address), [Autonomous System Number](https://ip-tools.eu/glossary.md#autonomous-system-number), [IP geolocation](https://ip-tools.eu/glossary.md#ip-geolocation), [VPN and proxy detection](https://ip-tools.eu/glossary.md#vpn-and-proxy-detection)

## Live data

The live values for the caller's own connection: `curl -H 'Accept: text/markdown' https://netcap4.ip-tools.eu/` (IPv6: netcap6). JSON: `GET https://netcap4.ip-tools.eu/api/capture`.

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Canonical page: https://ip-tools.eu/ · API documentation: https://ip-tools.eu/docs/api.md · All pages: https://ip-tools.eu/llms.txt