Free engineer tool

Port Checker

Check whether the ports live streaming needs — RTMP, RTMPS, HLS, and WebRTC TURN — are reachable, and learn what every result means for your stream. No signup required.

Port checker

Checks whether the internet can reach these ports on your public IP — the inbound / listener side. Every result explains what it means for a live stream.

Defaults to your public IP. Tests reachability from the public internet inward.

Streaming ports

UDP ports (SRT, RTP) can't be reachability-tested over TCP from the browser — they need the on-site probe.