Privacy Leak Check is a free browser-based tool that shows the connection details a website can see when you visit it. Check your public IP, ISP, approximate location, WebRTC exposure, browser signals and IPv6 availability in one place. No signup, installation or account is required. It is designed as an informational check, not as a security guarantee. The site includes a clearly labeled affiliate disclosure where relevant and does not auto-redirect visitors or claim that a VPN is required.