Monitor any specific port on your server.
Make sure any service on your server is still available with the Port monitoring.
Get 50 monitors totally FREE.
Monitor any port on your server.
Make sure databases and other services running on different ports on your server are always available. We support any port, including HTTPS, FTP, SSH, ...
Make sure your email service runs smoothly.
Set up a POP3, IMAP and SMTP port monitoring and know about any issues with your essential email services.
Port monitoring for your DNS server.
With port monitor watching your DNS port you always know whether essential DNS connection is okay.
Choose your preferred type of notifications.
Get instant alerts via email, SMS, voice call or through one of many integrations (such as Slack, Zapier, Splunk, etc.)
SMS
Voice call
Slack
Discord
Advanced features for advanced users.
Recurring notifications
Set threshold and recurrence parameters so that you don't miss any serious outage.
Maintenance windows
Set up maintenance windows to pause the monitoring during the maintenance.
Incidents with root causes
Reduce the risk of incident recurrence by analyzing the issue closely.
Response times
See your response times in a chart and reveal performance hiccups.
Multi-location checks
We verify incidents from various geo-locations to prevent false-positives.
SMS and voice call notifications
No internet? We can call or text you when something goes wrong.
Easy setup: 4 clicks to create a port monitoring.
Be the first who knows that your website is down. Reliable monitoring warns you before any significant troubles and saves you money.
Start monitoring in 30 secondsAll you really care about
monitored in one place.
Inform your customers about incidents with status pages.
Be transparent. Inform customers of planned outages. Show them that you strive to keep your service 100% online.
Add your team members to keep them notified.
You can invite all your team members to access your monitors, keep them notified and manage incidents. Choose from three levels of user access: read, write and notify-only.
What users love about our port monitoring.
Prevent lengthy server downtime and get notifed promptly when downtime occurs
I've been using the service for about a month. It has a user-friendly android app. In free plan, they ping my domain every 5 minutes and if it is down, I'm notified on my phone...
Excellent service, and even better customer support
I have been using UptimeRobot for monitoring websites and services hosted in AWS, specifically for general red light, yellow light, and green light monitoring...
Excellent piece of software
It's easy, fast and comprehensive. I just need to know the address of the site I want to monitor and that's it!
Get inspired by the uses cases.
Improved network security by keeping an eye on open ports
Tracking status and performance of network devices
Enhanced troubleshooting and reduced incident response time
We strive for minimal downtime, but if something goes wrong UptimeRobot makes sure that we know about it quickly.
We switched to using UptimeRobot years ago as they offered the same services we were getting from a different provider but at a fraction of the cost.
Frequently asked questions.
- Which types of ports can I monitor with UptimeRobot?
You can monitor any custom or pre-defined port with UptimeRobot: FTP (21), SSH/SFTP (22), HTTP (80), HTTPS (25, 443), DNS (53), POP3 (110, 993), IMAP (143, 993), SMTP (587, 465), or MYSQL (3306).
- Are there any limits on the number of ports I can monitor?
You can monitor up to 50 ports in 5-minute intervals with the lifetime FREE plan.
With the paid plans, you can use 30-second or 1-minute intervals and create up to 1,000 monitors or more. Contact us at support@uptimerobot.com if you’re looking for an Enterprise solution!
Relevant articles.
Top 10 Port Monitoring Tools
Looking for the best cost-effective port monitoring that meets all your needs? Read our detailed guide focusing on key features and pricing.
Read more
Server Administrator’s Guide to POP3 and IMAP Monitoring
Monitor key mail server ports like POP3 and IMAP to enhance uptime and reduce costs. Discover essential monitoring tips.
Read more
SMTP Monitoring Uncovered
Why is SMTP monitoring important and key to maintaining secure and uninterrupted email services? Learn about the whole story on our blog.
Read more
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