What is my IP? Your IP address at a glance

This is how every website sees you before you click a thing.

Free download

Checked on my own server in Germany. I don't pass your address on.

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01 · Connection

What my server sees

Every connection leaves traces. Here is every one that reaches me.

Your connection

Address, network and origin

Country and network operator come from a local database on my server. Data source: IPLocate.io (CC BY-SA 4.0)

What your browser sends along

The actual headers of this request, minus cookies

02 · Device

What your browser gives away

Websites read your device without cookies and without you ever noticing. One click shows you what they see.

Nothing runs until you click

Then your browser reads your screen, language, time zone, graphics card and some 20 other traits, and rates how well you're protected.

It all happens in your browser. None of it goes to my server or to anyone else.

03 · Speed

How fast your line really is

Measured against my server in a German data center. Real data, not estimates.

0 Mbit/s Ready
Latency
·ms
Jitter
·ms
Download
·Mbit/s
Upload
·Mbit/s

The test takes about 20 seconds and transfers up to 70 MB, depending on your connection. On mobile data, that counts toward your plan.

04 · Tools

Check what you need to know

A strange address in a log file, a sender's domain, a leak in your VPN. Find out here.

IP and domain lookup

Country, network operator and network type for any address

WebRTC leak test

Does your browser reveal your real address?

Video calls in the browser can leak your real IP address right past your VPN. This test shows which address gets through.

This test queries a STUN server run by Cloudflare, so Cloudflare sees your IP address. It runs only when you click.

IPv6 test

Do you have an IPv6 address?

My server speaks IPv4. This test shows whether your connection supports IPv6 too, and which address it uses.

This test queries api6.ipify.org, a service based in the US, so ipify sees your IPv6 address. It runs only when you click.

05 · Principle

Why this tool exists

Many IP checkers show you your address. Then they pass it along.

Ask the web for your IP address and it often lands with 3 or 4 services at once: one for the address, one for the location, one for the ads. The tool that's supposed to show you your traces leaves new ones.

IP Beacon does the opposite. Your address reaches my server, gets checked against a local database and goes no further. Everything about your device is calculated by your own browser. Third-party tests run only when you start them yourself.

A tool that shows your traces shouldn't leave new ones.

Checked locally

Country, network operator and VPN detection come from data on my own server in Germany. No outside lookup service, no detour.

No tracking

No cookies, no local storage, no account. Your results stay in your browser until you close the window. The server's access log is deleted after 14 days at most.

Built in the open

The complete code is available under the MIT license. Review every line and run the tool yourself.

06 · Open Source

Your own IP Beacon

On your server, on your company network, or right on your computer.

Version 4.0 takes IP Beacon a big step further: your own server answers the IP lookup, the interface speaks English and German, and there isn't a single external library. One folder, PHP 8, done.

  • Runs locally
  • On your own server
  • MIT license
  • No dependencies
  • English and German
  • No tracking
Download IP Beacon 4.0
File
IP-Beacon-4.0.zip
Size
114 KB
Released
October 5, 2026
SHA-256
f375d6bf479ebe84b3c6e1995c09f8d40d18b52a6dd1b6761370478699a4916d

Online in 3 steps

  1. UnzipPut the folder on a web server running PHP 8. For a quick test, PHP's built-in server will do.
  2. Add dataOptional: drop the free country and network data from IPLocate.io into api/data. INSTALL.md covers every step.
  3. Open itOpen the page in your browser. Even without a server, the device scan works with a double click.
unzip IP-Beacon-4.0.zip
cd IP-Beacon-4.0
php -S localhost:8080

Verify the checksum: shasum -a 256 IP-Beacon-4.0.zip

07 · FAQ

Frequently asked questions

How do I find my IP address?

It's right at the top of this page as soon as it loads. That's your public IP address, the one your connection shows to the internet. Click the icon next to it to copy it.

What does my IP address reveal about me?

Your internet provider and usually your country, often your region too. Not your home address. Only your provider knows that, and it hands it over only in cases defined by law, for example to law enforcement. Combined with your browser fingerprint, though, a device can be recognized even without cookies.

Why doesn't IP Beacon show a city?

Because it would often be wrong. City-level locations in IP databases are frequently off by dozens of miles. IP Beacon shows what can be determined reliably: country, network operator and network type.

Can IP Beacon tell if I'm using a VPN?

Most of the time. My server compares your address against lists of known data centers, VPN networks and iCloud Private Relay. A match means your real address is hidden. The WebRTC leak test also shows whether your VPN is holding tight.

Does IP Beacon store my data?

The tool itself doesn't. It sets no cookies and stores nothing in your browser. Like every web server, mine keeps an access log, which is deleted automatically after 14 days at most. The privacy policy has the details.

How accurate is the speed test?

It uses real data to measure the route between your device and my server in Germany. That comes close to your actual line speed. Wi-Fi, other devices on your network and the distance to the server all affect the result.

Can I use IP Beacon at my company?

Yes. IP Beacon is released under the MIT license and may be used, modified and shared for personal and commercial purposes. The only condition: keep the license notice intact.