How it works
- 1Enter a public hostname or IP address.
- 2Enter one TCP port from 1 to 65535.
- 3Run the check to see whether a TCP connection can be established from the Toolardo server.
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SERVER · Direct TCP socket to validated public IP
Port Checker
Check whether a TCP port on a public domain or IP accepts connections. See the resolved public IP and connection time.
✓ Check a single TCP port on a public host or IP✓ Direct server-side TCP connection with a short timeout✓ Private, loopback, link-local and reserved IPs are blocked
Checks one TCP port from the Toolardo server. Private, loopback, link-local and reserved targets are blocked.
About this tool
A direct TCP port checker for a single public host and port, with SSRF-safe public-IP validation.
Frequently asked questions
Does this scan a range of ports?
No. It checks only the single port you enter.
Why is a private IP blocked?
Private, loopback, link-local and reserved addresses are blocked to prevent the tool from reaching internal server networks.
Does an open result mean the service is healthy?
No. It only means a TCP connection was accepted on that port.