What is port monitoring?

Port monitoring checks whether specific network ports (TCP or UDP) are open and accessible on your servers. It ensures critical services like SMTP, FTP, SSH, databases, and custom applications are running and accessible.

Which ports can I monitor?

You can monitor any TCP or UDP port from 1 to 65535. Common ports include HTTP (80), HTTPS (443), SSH (22), SMTP (25), FTP (21), MySQL (3306), PostgreSQL (5432), and custom application ports. We support both standard and custom port monitoring.

How often do you check ports?

You can configure check intervals from 1 minute to hourly. More frequent checks provide faster detection when ports close. We recommend 1-5 minute intervals for critical services and 15-30 minutes for less critical ports.

What happens when a port closes?

When a port closes or becomes unreachable, you'll immediately receive alerts via your configured notification channels (email, SMS, webhook, etc.). We'll continue monitoring and send a confirmation alert when the port becomes accessible again.

Can I monitor multiple ports on the same server?

Yes! You can monitor unlimited ports on unlimited servers. Each port can have its own check interval and alert configuration. Monitor all your critical services from a single dashboard.

Do you support both TCP and UDP ports?

Yes! We support monitoring of both TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) ports. TCP is used for reliable connections like HTTP, SSH, and databases, while UDP is used for DNS, DHCP, and streaming services.

Is port monitoring free?

Yes! Our free plan includes basic port monitoring with TCP/UDP port checks, email alerts, and port status tracking. Premium plans offer additional features like faster check intervals, SMS alerts, longer historical data, and priority support.

Free Port Monitoring Tool | TCP UDP Port Monitoring India

Port Monitoring

Monitor network ports and services to ensure critical infrastructure remains accessible

Monitor Critical Network Services

Port monitoring checks the availability and responsiveness of network services running on specific TCP or UDP ports. Whether you're running database servers, mail servers, FTP services, or custom applications, port monitoring ensures these critical services remain accessible and responsive.

Our port monitoring service tests connectivity, measures response times, and can even validate service-specific protocols to ensure your network services are not just running, but functioning correctly.

Commonly Monitored Services

Popular services and ports we monitor

HTTP/HTTPS

80/443

Web servers and applications

SMTP

25/587

Email sending servers

POP3/IMAP

110/143

Email receiving servers

MySQL

3306

MySQL database servers

PostgreSQL

5432

PostgreSQL database servers

SSH

Secure shell access

FTP/SFTP

21/22

File transfer services

RDP

3389

Remote desktop protocol

Custom Ports

Any

Your custom services

Port Monitoring Features

Powerful capabilities for comprehensive port monitoring

TCP & UDP Monitoring

Monitor both TCP and UDP ports. Test connection establishment, measure response times, and verify services are listening and accepting connections on specified ports.

Protocol Validation

Beyond simple connectivity checks, validate protocol-specific responses for common services like HTTP, SMTP, POP3, IMAP, MySQL, PostgreSQL, and more. Ensure services respond correctly.

Response Time Tracking

Measure connection time and service response latency. Track performance over time and get alerted when services become slow or unresponsive, even if they're technically still running.

Firewall & Security Testing

Verify firewall rules are working correctly by confirming which ports are accessible and which are properly blocked. Test from multiple external locations to validate security configuration.

Instant Alerts

Receive immediate notifications when monitored ports become unreachable, timeout, or return unexpected responses. Configure separate alert thresholds for different services based on criticality.

Multiple Port Monitoring

Monitor multiple ports on the same server or across different servers. Create port groups for related services and get a comprehensive view of your entire infrastructure.

Common Use Cases

How organizations use port monitoring

Database Monitoring

Ensure database servers remain accessible to your applications. Monitor MySQL, PostgreSQL, MongoDB, Redis, and other database services.

Connection availability
Response time monitoring
Authentication testing

Email Server Monitoring

Monitor SMTP, POP3, and IMAP services to ensure email delivery and retrieval remain functional. Critical for business communications.

SMTP port availability
POP3/IMAP accessibility
SSL/TLS support verification

Remote Access Monitoring

Verify SSH, RDP, and VPN services remain accessible for remote administration and support teams. Essential for IT operations.

SSH port monitoring
RDP availability checking
VPN endpoint testing

Game Server Monitoring

Monitor game servers, Minecraft servers, Discord bots, and other real-time applications running on custom ports.

Server availability
Player connectivity
Service responsiveness

Why Port Monitoring Matters

Critical benefits for your network infrastructure

Prevent Service Outages

Detect when critical services stop responding before users are impacted

Verify Security Configuration

Ensure firewall rules work correctly and unauthorized ports aren't exposed

Track Performance

Monitor connection times and identify performance degradation early

Troubleshoot Network Issues

Quickly identify network connectivity and routing problems

Frequently Asked Questions

Everything you need to know about port monitoring

Start Monitoring Your Network Services

Ensure critical services remain accessible with comprehensive port monitoring.

Get Started Free