Port Checker
Learn how open ports work, why public services should be secured carefully, and why unexpected open ports can create avoidable risk.
A port checker tests whether a service appears reachable from the internet. Open ports can be normal, but unexpected open services may create security risk.
Next steps
Use the tools and guides on getmyipaddress.io to check your public IP address, understand what it reveals, and reduce avoidable privacy leaks.
Check your IP address or visit the network toolbox.