TCP Port Monitoring

Check Any Service on Any Port

Monitor databases, mail servers, SSH, custom applications, and anything else listening on a TCP port. Verify services are accepting connections — not just that the host is alive.

Start Monitoring for Free
 

Ping Alone Isn't Enough

A server can be online but have its database, mail server, or application crashed. Port monitoring verifies that your actual services accept connections, not just that the host responds to ping.

 

Monitor Services, Not Just Servers

Any TCP Port

Monitor port 22, 25, 443, 3306, 5432, or any custom port. No limits.

Socket Connection Tests

We open a real TCP connection to verify the service actually accepts it.

Multi-Location Checks

Verify services are reachable from multiple global regions.

Custom Timeouts

Tune timeouts per service — tight for cache servers, generous for slow databases.

Response Time Tracking

Monitor how fast services accept connections to spot performance degradation.

Instant Alerts

Get notified on Email, Slack, WhatsApp, SMS, or any channel when the port stops responding.

 

Perfect For Monitoring

Databases

MySQL (3306), PostgreSQL (5432), MongoDB (27017), Redis (6379) and more.

Mail Servers

SMTP (25/587), IMAP (143/993), POP3 (110/995).

Custom Services

SSH, FTP, VPN, game servers, microservices — anything on a TCP port.

 

Frequently Asked Questions

Port monitoring verifies that a specific TCP port on a server accepts new connections. It's more reliable than ping for checking service health because it confirms the actual service — not just the host — is operational.

Yes. Monitor any TCP port from 1 to 65535 — standard or custom.

No, port monitoring covers TCP services. UDP services require specialized probes that differ per protocol.

Website monitoring sends an HTTP request and validates the response. Port monitoring opens a TCP socket to verify the port is listening. Use port monitoring for services that don't speak HTTP.

Yes. Configure custom timeout thresholds — when response time exceeds your threshold, we alert you.