🔌 Port Monitoring

Verify every service is listening.

Check that TCP ports are open and accepting connections. Perfect for SMTP, FTP, database, and custom application ports.

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What you get

Everything you need for port monitoring.

TCP port availability checks

Monitor SMTP (25, 465, 587), FTP (21), SSH (22)

Monitor custom application ports

Monitor database ports (MySQL 3306, PostgreSQL 5432)

Configurable connection timeout

Alert on port becoming closed or unresponsive

Multi-location port checks

Monitor SSL/TLS on any port

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Live monitor dashboard

https://myapp.com

142ms

99.98%

https://api.myapp.com

89ms

100%

https://staging.myapp.com

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Down

FAQ

Common questions.

Port monitoring attempts a TCP connection to a specific port on a host. If the connection fails or times out, an incident is opened. This is useful for monitoring services like SMTP, FTP, SSH, or any custom TCP service.

Any TCP port from 1 to 65535. Common uses include email (25, 465, 587), FTP (21), SSH (22), HTTP (80, 443), MySQL (3306), and PostgreSQL (5432).

Start port monitoring today.

Set up in under 30 seconds. 50 monitors free, no credit card required.

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