Location & Network
Port Checker
HTTPS / HTTP reachability from your browser
Browsers cannot open arbitrary TCP sockets. This tool tries an HTTPS or HTTP request to host:port. A response (even blocked by CORS) usually means something is listening — firewalls and TLS errors can still report “closed”. For authoritative scans use a server-side scanner.
About the Port Checker
A port checker that tests whether a host answers over HTTP or HTTPS from your browser. It is not a scan of every network port.
How to use the Port Checker
- Enter the host.
- Run the check.
- Read whether the HTTP or HTTPS address responded.
What to check
A closed result can mean a firewall, a wrong name, or a server that only answers on another protocol.
Can this scan port 22 or port 3306?
No. A browser can test web addresses. It cannot open an arbitrary TCP port.
What does an open result mean?
The host responded to an HTTP or HTTPS request from this browser.