Port Scanner
Scan the 25 most common TCP ports on any IP address or hostname and instantly see which are open or closed.
About Port Scanner
This tool scans the 25 most commonly used TCP ports on any IP address or hostname and reports whether each port is open or closed. You can scan a remote server to audit its exposed services, or scan your own public IP to check what your router or firewall is exposing to the internet.
On a typical home connection, none of these ports should be open. If you find open ports you didn't deliberately configure, that may indicate a misconfigured router, firewall rule, or software running unexpectedly.
Ports scanned include: FTP, SSH, Telnet, SMTP, DNS, HTTP, POP3, IMAP, LDAP, HTTPS, SMB, MySQL, RDP, VNC, SIP and several others.