Online Ping Test Tool
Measure how long a TCP connection to a host and port takes, with min, average and max over several attempts. The timing is measured from our server — not your device — and a true ICMP ping isn't possible from a browser. Nothing is stored.
- 100% free
- Secure
Why use TCP Port Latency Test?
TCP Port Latency Test performs a fast, secure server-side lookup and presents the results in a clear, readable format.
- Fast server-side lookup — we don't store your queries.
- Completely free, with no account, no watermarks and no usage limits.
- Handles Input: host + port; Output: min/avg/max TCP-connect latency.
- Enter a host and port (default 443).
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use TCP Port Latency Test
- Enter a host and port (default 443).
- Click Ping.
- See success count and min/avg/max latency.
- Compare hosts or ports.
Examples
- Checking latency to an API endpoint on port 443.
- Testing whether a service accepts connections.
Supported formats & limits
- Input: host + port
- Output: min/avg/max TCP-connect latency
Limitations
- Measures TCP-connect time, not ICMP ping.
- Latency includes our server's location, not your own network path.
Frequently asked questions
Why not a real ping?
ICMP requires raw sockets that aren't available in a serverless environment, so a TCP-connect test is used.
Why is latency measured from your server?
The request runs on our server, so timings reflect its network path, not your device's.
Are queries stored?
No.
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