Please enter the Address / IP and port of the website or IP address you wish to test (enter the second IP if you want so scan to that port range).
Address/IP
Port
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When clicking "Check/Scan Port(s)" you confirm that you agree to this "Terms of use", You are strictly forbidden to use this port scanner to perform security tests on computers, servers, or devices which you do not have permission or authorization to test. If you use a third party hosting service, you must notify the service and receive permission for joeklein.cc to perform security testing. You agree to hold joeklein.cc harmless for any failure to obtain any necessary permission.
A list of commonly used ports
are listed here for reference

ServicePort No.
FTP Server21
Secure Shell(SSH)22
Telnet23
SMTP25
SMTP TLS587
SMTP SSL465
DNS53
Web Server80
POP3110
IMAP143
Web Server (HTTPS)443
Remote Desktop3389
Teamviewer5938
RTSP554