Browser Lab
Probe what your browser is actually able to measure.
IP Echo
Cross-origin IP echo over 2 fallback endpoints.
—
WebRTC
Gather ICE candidates via STUN to surface browser-exposed IPs.
—
Image Probe
https://www.google.com/favicon.ico
Fetch Probe
https://www.cloudflare.com/cdn-cgi/trace
—
Resource Timing
https://github.com/favicon.ico
—