Detect VPN/proxy usage and WebRTC leaks
Websites check if your IP belongs to a datacenter, examine proxy headers, test for WebRTC leaks, and compare IP timezone with browser timezone.
WebRTC can reveal your real IP even when using a VPN by bypassing the VPN tunnel through peer-to-peer connections.
Use a quality VPN, disable WebRTC, ensure correct DNS settings, and consider obfuscated protocols.