Port Scanner

Scan the top 20 most common ports on any public host

This check runs from our infrastructure and may log the queried information to improve accuracy and availability. Logs are retained for a short period and are not used for marketing

Hostname or IP Address

Try:

Ports Scanned (Top 20)

21(FTP)22(SSH)23(Telnet)25(SMTP)53(DNS)80(HTTP)110(POP3)143(IMAP)443(HTTPS)445(SMB)465(SMTPS)587(Submission)993(IMAPS)995(POP3S)1433(MSSQL)3306(MySQL)3389(RDP)5432(PostgreSQL)6379(Redis)8080(HTTP-Alt)

About Port Scanning

Open

The port is accepting connections. A service is listening.

Closed

The port is reachable but no service is listening.

Filtered

A firewall is blocking access. No response received.

This tool scans public IP addresses only. Scanning private networks or without authorization may be illegal.