TCP Connection Checker
API access at:
/check-connection?host=example.com&port=80
Example
GET Request
Popular Ports
80 - HTTP
21 - FTP
22 - SSH, SFTP
23 - Telnet
25 - SMTP
53 - DNS
80 - HTTP
110 - POP
123 - NTP
143 - IMAP
156 - SQL
161 - SNMP
162 - SNMP Trap
179 - BGP
389 - LDAP
443 - HTTPS
636 - LDAPS
3306 - MySQL
3389 - RDP
Host:
Port:
Check Connection