Keep services up with 
TCP port monitoring tool.

Monitor your TCP communication and avoid unnecessary downtime.

TCP monitoring hero

More features to boost your uptime.

Continuous alerts

Adjust threshold and recurrence settings to avoid overlooking any critical downtimes.

Maintenance windows

Configure maintenance windows to temporarily halt monitoring while performing updates.

Incidents with root causes

Lower the chance of repeated incidents by conducting a detailed analysis of the problem.

Custom request timeout

Prevent false positives in case there are any hiccups and set an up to 1-minute timeout.

Multi-location checks

We validate incidents across different geographic locations to minimize false positives.

Shared account access

Let your colleagues access monitors and contacts with admin, read, write, or notify-only access.

GitHub logo
Slack logo
Gitlab logo
n8n logo
Canva logo
 OVHcloud logo
Akamai logo
rmit-logo
Atlassian logo
Intel logo
Electronic Arts (EA) logo
IBM logo
Adyen logo
Stanford University logo
BBC logo
Moody's logo
Siemens logo

Check server uptime.

Ensure your server remains operational. Regularly verify its status by pinging its public IP address to prevent unexpected downtimes.

Check server uptime

Track network devices.

Keep essential network devices operational using our straightforward and dependable monitoring solution.

Track network devices

Monitor server response time.

Identify spikes in server response times. Our system checks your server's performance every minute.

Monitor server response time

Set up TCP monitoring in seconds.

Be the first who knows that your website is down. Reliable monitoring warns you before any significant troubles and saves you money.

Benefits of

TCP monitoring.

calm fast incident updates

Maintain the availability of all services

Monitor if any port on your server remains open. We support all ports, including HTTPS, FTP, SMTP, IMAP, DNS, SSH, and more.

defuse is it down-tickets

Improve user experience and usability

Keep positive user reviews and maintain the highest level of usability for your users while monitoring your services availability.

single link to share

Get alerts and fix network issues before it’s too late

Identify problems and minimize disruptions with TCP monitoring and jump on the solution before it affects your users.

Know more than

just up or down.

Multi-location checks, response time tracking, SSL and domain expiry alerts. The details that turn raw uptime data into something you can actually act on.

All you really care about 

monitored in one place.

From Websites and APIs to servers and cron jobs, UptimeRobot watches every layer. Nine monitor types, one dashboard.

Keep everyone posted with status pages.

Inform users about upcoming maintenance (also through email updates), enhance your incident management, and boost your team's cooperation to swiftly address any issues..

UR_pspISO
Integrations

Get notified before
it gets serious.

Be the first to know about incidents and get instant alerts when something happens. UptimeRobot offers up to 16 ways to get notified.

ICMPchecks

Reliable ICMP checks.

Ensure your servers and network devices stay connected through ICMP checks. Swiftly identify problems with active monitoring and real-time notifications, offering insights like traceroute and response time metrics.

See why others value UptimeRobot.

Frequently asked questions.

TCP port monitoring involves checking the status of Transmission Control Protocol (TCP) ports on servers to ensure they are open and listening for incoming connections. This monitoring is used to detect security breaches, performance issues, and to ensure the continuous operation of network services.

A TCP port is a numerical identifier in the Transmission Control Protocol (TCP) used to specify a specific endpoint within a host computer or server on a network. It enables multiple network services to run simultaneously on a single device by providing unique addresses for each session, facilitating the routing of packets to the correct application.

Our monitoring service covers a wide range of ports to ensure the comprehensive availability and performance of your network services. These include FTP (File Transfer Protocol), SSH/SFTP (Secure Shell/File Transfer Protocol), HTTP (Hypertext Transfer Protocol), HTTPS (HTTP Secure), DNS (Domain Name System), POP3 (Post Office Protocol 3), IMAP (Internet Message Access Protocol), SMTP (Simple Mail Transfer Protocol) for both ports 465 and 587, and MYSQL.

Relevant articles.

What Is Ping Monitoring

Learn how ping monitoring uses ICMP echo requests to check if your devices and services are reachable and detect network issues.

Read more

Ultimate Guide to Uptime Monitoring Types

Discover different uptime monitoring types including HTTP, ping, DNS, SSL, and port checks, plus best practices for a layered strategy.

Read more

Access Denied on This Server: Causes and Fixes

Understand why servers block access requests and learn step-by-step troubleshooting for IP blocks, firewall issues, and more.

Read more
4.7
stars out of 5
284+ reviews on

Get your FREE account now, 50 monitors included!

No credit card required!

Available also on: