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TCP Port Check (Ping)
Check if a TCP port on a public host is open and measure connection latency.
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About TCP Port Check (Ping)
Test whether a TCP port on a public host is reachable and measure connection time. Because ICMP is not available on shared hosting, this tool performs a TCP connect to common ports (HTTP, HTTPS, SSH, SMTP, etc.). Hostnames are resolved server-side and private addresses are rejected.
Frequently asked questions
Why TCP and not ICMP?
Standard ping uses ICMP, which requires elevated privileges not available on shared hosting. A TCP connect provides a similar 'is it up?' answer for any chosen port.
Why are some hosts blocked?
Private/internal addresses and metadata endpoints are blocked to prevent abuse.
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