Check My IP
Inspect your public IP and approximate network information after you choose to connect.
network
This check sends only the value described below to the SFranKey API. The request starts after you press Check; results are diagnostic estimates and are not saved.
Network intelligence
Inspect your public IP and approximate network information after you choose to connect.
Look up approximate location, ASN and reverse DNS for a public IP.
Inspect provider signals for VPN, proxy, Tor, relay and hosting networks.
Compare public IP, DNS resolver and browser WebRTC observations.
Observe the recursive DNS resolvers used for an explicit test session.
Inspect browser ICE candidates with a self-hosted STUN service.
Resolve public DNS records through an explicit server-side lookup.
Inspect a public website certificate, hostname match and expiration.
Follow a guarded HTTP redirect chain without downloading page bodies.
Review selected response and security headers for a public URL.