Use the Open Port Checker to check if a TCP port is open and accessible from the general Internet.

Open Port Checker

Use the Open Port Checker to check if a TCP port is open and accessible from the general Internet.

Hostname or IP address E.g. www.google.com, 8.8.8.8, 2a00:1450:4009:807::2004

IPv4

IPv6

Port to connect to

or

Enter a custom port number

Did you know?

You can pre-select the port you want to check by appending ?port=123 to the URL. For example:

https://soliddevtools.com/tools/open-port-checker?port=9912
https://soliddevtools.com/tools/open-port-checker?port=443