tools ▸ port checker

Is that portactually open?

Test any TCP port on a public host from our India network — perfect for checking SSH, RDP, MySQL, mail or game servers after a firewall change.

Port or custom port

running from our India servers…

port checker ▸ explained

What you need
to know.

Test whether a TCP port is open on a host or IP — SSH, RDP, MySQL, HTTP and more.

VPS with full firewall control

open

Something is listening

The TCP handshake completed — a service is accepting connections on that port.

closed

Refused

The host answered but nothing is listening, or the service is stopped.

filtered

Timed out

No reply at all — usually a firewall (CSF, UFW, Windows Firewall, cloud security group) is dropping traffic.

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faq ▸ before you buy

Open Port Checker — FAQ

How do I check if a port is open?+

Enter the public hostname or IP, pick the port and press Test. We attempt a TCP connection from our servers and report open, closed or filtered.

Why is my port open locally but closed here?+

Your firewall, router NAT or ISP is blocking inbound traffic, or the service is bound to 127.0.0.1 only. Bind it to 0.0.0.0 and open the port in the firewall.

Can I scan private IPs like 192.168.x.x?+

No. Private, loopback and reserved ranges are blocked — the tool tests public internet reachability only.

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