🛡️ Port Scanner (Lite)
Check whether common TCP ports accept connections on a host, tested from our servers rather than your own network. Use it to confirm a service is publicly reachable, or that a port you closed really is closed.
Leave empty to scan a standard set of common ports.
⚠️ Scan only hosts you own or have permission to test. Port scanning
systems without authorisation is against the law in many countries, and against the
acceptable-use policy of most hosting providers.
Enter a host to check which common ports are open.