myip.foo – Fast IP lookup with dual-stack detection and zero tracking

Summary: myip.foo provides instant IP lookup with simultaneous IPv4 and IPv6 detection, accurate geolocation, VPN and proxy identification, and DNS leak testing. It offers a free JSON API and operates with low latency via Cloudflare Workers, ensuring privacy compliance without IP logging.

What it does

myip.foo detects both IPv4 and IPv6 addresses in-browser using WebRTC without CLI requirements, performs geolocation at city level, identifies VPN and proxy types, tests for DNS leaks, and provides a free JSON API for integration. It runs on Cloudflare Workers with over 300 edge locations for sub-50ms response times.

Who it's for

It is designed for developers, VPN users, system administrators, and anyone needing reliable IP data or API integration for network diagnostics and privacy verification.

Why it matters

It addresses slow, ad-heavy IP tools by delivering fast, accurate dual-stack detection and privacy-focused IP lookup without storing user data.