🔌 Port Scanner
Check which ports are open, closed, or filtered on any IP address or domain. Real TCP scan — no browser limitations.
Select ports above
Target—
Open—
Closed—
Filtered—
Total—
| Port | Service | Status | Risk | Response |
|---|
⚠️
Open ports detected
A VPN hides your real IP so port scans cannot identify your device or open services.
🟢 Open
The port accepted a TCP connection — a service is actively listening and reachable from the internet.
🔴 Closed
The target responded with a TCP RST — the port is reachable but no service is listening on it.
🟡 Filtered
No response within the timeout — a firewall is likely dropping packets to this port silently.
🔍 How it works
Our server performs real TCP connection attempts to each port using PHP fsockopen() and returns the result. No browser limitations — accurate results from outside your network.