Live reachability across relay fleets on :443 — STUN, TURN (UDP/TCP) and TURNS. Runs entirely in your browser; nothing leaves this page. Download a full diagnostic log after each run.
Fleet : Guardian
48 nodes
Enter a username and password to check with your own credentials, or leave both empty to use the built-in defaults.
Fill both to use custom credentials · leave both empty for default. One-only isn't allowed.
Idle — click “Run test”. Takes ~15s.
Fleet : Avengers
5 nodes
Reachability check across the secondary relay fleet.
Idle — click “Run test”. Takes ~15s.
Fleet : Hulk
1 node
Single-node relay reachability check.
Idle — click “Run test”. Takes ~15s.
✅ = candidate gathered on :443 for that protocol — STUN → reflexive (srflx); TURN / TURNS → relay. ❌ = not reachable on that path. Download log captures every candidate, ICE error code + text, address/port and per-protocol failure reason for debugging.