Network Port Scanner
Scan network ports to discover open services and potential vulnerabilities. For educational and authorized testing only.
Important Notice
Only scan networks and systems you own or have explicit permission to test. Unauthorized port scanning may be illegal.
Common Ports Reference
21FTPFile Transfer Protocol
22SSHSecure Shell
23TelnetTelnet Protocol
25SMTPSimple Mail Transfer Protocol
53DNSDomain Name System
80HTTPHypertext Transfer Protocol
110POP3Post Office Protocol v3
143IMAPInternet Message Access Protocol
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