About FastIPInfo
A fast, private, no-nonsense set of tools for understanding your IP address, network and online privacy — built to run entirely in your browser.
What we do
FastIPInfo brings together the network and privacy tools people actually reach for — “what is my IP”, geolocation, WHOIS, speed testing, WebRTC and DNS leak checks, subnet maths and more — in one clean, fast place. Every tool is free, requires no account, and is designed to give you a straight answer without burying it in ads or upsells.
Our privacy principle
We built FastIPInfo because most “IP checker” sites quietly do the opposite of what privacy-conscious users want. So we made a simple commitment: your data stays yours.
- No accounts, ever. Nothing to sign up for.
- No logging of your IP or results. We don't store the addresses or details you look up.
- Client-side by default. Browser, device, fingerprint, calculator and converter tools run entirely on your machine — nothing is sent to us.
- Minimal third parties. Where a tool needs external data (IP geolocation, WHOIS, the speed-test endpoint), we use reputable public services and tell you which.
Read the full privacy policy for specifics.
How it's built
The whole site is static HTML, one shared stylesheet and a little vanilla JavaScript — no heavy frameworks, no trackers slowing your page down. That's why it loads almost instantly and works even on a flaky connection. The interactive tools use standard browser APIs (and a couple of well-known public APIs for IP intelligence) so you can verify exactly what they do.
Who it's for
Whether you're a developer subnetting a network, a privacy-minded user checking for VPN leaks, an IT admin tracing a route, or just someone wondering “what is my IP address?”, the tools here are meant to be quick, accurate and respectful of your time and your data.