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Port Checker

Test if TCP ports are open on any IP address or hostname. Checks are performed server-side, reflecting the server's network perspective.

Host (IP address or hostname)
Port Presets (click to toggle)
Select Ports to Check
Common Services
🟡 Grin Mainnet
🟢 Grin Testnet
Port Service Status
ℹ️ Checks are performed via a server-side TCP probe. Results reflect what the server can reach — not your local network. A closed result may mean the port is firewalled or the service is not running.
check open port TCP port scan firewall test SSH RDP port port scanner