Domain Port Scanner
Description & Example
Use this tool to scan a domain for open ports. Enter the domain name (for example, example.com) and a comma‐separated list of ports you wish to test (by default, 22, 25, 80, and 443). The tool will attempt to establish a TCP connection on each port and display which ports are open along with the response time.
For example, if you enter apple.com and use the default ports, the output might show:
Port 22 is closed or unreachable.
Port 25 is closed or unreachable.
Port 80 is open (responded in 85 ms).
Port 443 is open (responded in 92 ms).
Port 25 is closed or unreachable.
Port 80 is open (responded in 85 ms).
Port 443 is open (responded in 92 ms).
To help prevent abuse, you must correctly answer a simple math challenge before submitting. Each page load or reset generates a new challenge.