Enter a website or IP address and specify the port range to scan.
Note: Scanning a port range of 1000 may take approximately 3 minutes. Larger ranges will take longer. For faster results, it is recommended to scan a small range or a single port (e.g., port 80 to 80).
Common Ports
Port Number
Usage
20
File Transfer Protocol (FTP) Data Transfer
21
File Transfer Protocol (FTP) Command Control
22
Secure Shell (SSH)
23
Telnet - Remote login service, unencrypted text messages
25
Simple Mail Transfer Protocol (SMTP) E-mail Routing
53
Domain Name System (DNS) service
80
Hypertext Transfer Protocol (HTTP) used in World Wide Web
110
Post Office Protocol (POP3) used by e-mail clients to retrieve e-mail from a server
119
Network News Transfer Protocol (NNTP)
123
Network Time Protocol (NTP)
143
Internet Message Access Protocol (IMAP) Management of Digital Mail