About whatsmy.fyi

What is my IP address?

Your IP address (Internet Protocol address) is a unique numerical label assigned to your device when it connects to the internet. Every website and server you visit can see it. It is not a secret — it is how the internet knows where to send data back to you.

whatsmy.fyi reads your IP directly from the incoming request. No third-party geolocation service is involved. All location data (city, country, ISP, timezone) comes from Cloudflare's edge network, which processes your request before it reaches our server.

What does my IP address reveal about me?

Your IP address can reveal your approximate city and region, your internet service provider (ISP), the autonomous system (AS) network your connection routes through, and — in most cases — the country you are in.

It does not reveal your name, home address, or browsing history. However, combined with other browser signals (user agent, screen size, timezone), it contributes to what is called a "browser fingerprint" — a profile that can track you across sites without cookies.

What is a WebRTC leak and why does it matter?

WebRTC is a browser technology that enables real-time communication (video calls, peer-to-peer file sharing). As part of its peer discovery mechanism, it can reveal your real local and public IP address — even if you are using a VPN.

This is called a WebRTC leak. If your VPN does not block WebRTC, websites can discover your true IP address behind the VPN tunnel. whatsmy.fyi tests for this automatically: it compares the IP your browser reports via WebRTC against the IP your connection actually uses.

How do I know if my VPN is actually working?

Two checks matter. First, your public IP should belong to your VPN provider's IP range — not your home ISP. whatsmy.fyi shows your ISP name; if it matches your VPN provider, the connection is routing correctly.

Second, the WebRTC leak test must pass. If the WebRTC IP matches your real home IP instead of the VPN IP, your real identity is leaking. whatsmy.fyi runs both checks automatically and combines them into a Privacy Score.

What is HTTP/3?

HTTP/3 is the latest version of the HyperText Transfer Protocol — the foundation of data transfer on the web. Unlike HTTP/1.1 and HTTP/2, which run on TCP, HTTP/3 uses QUIC: a transport protocol built on UDP that eliminates head-of-line blocking and dramatically reduces latency, especially on unreliable mobile connections.

Cloudflare's network supports HTTP/3 by default. If your browser supports it (Chrome, Firefox, Edge, and Safari all do as of 2023), your connection to whatsmy.fyi is automatically upgraded. Most users have never seen this fact displayed anywhere — that is one of the things that makes whatsmy.fyi different.

Why does whatsmy.fyi not store my data?

Because it does not need to. Our only purpose is to show you information about your own connection — information that already belongs to you. Storing your IP address or location would create a liability, add complexity, and provide no benefit to you.

Under GDPR, processing an IP address requires a legal basis. Ours is legitimate interest (Article 6(1)(f)): we process your IP address solely to display it back to you, and only for the duration of the request. Zero retention means zero retention risk.

We use Cloudflare Web Analytics for aggregate traffic data (page views, not individual users). It uses no cookies, logs no IP addresses, and is GDPR, CCPA, and PECR compliant.