Do not just check if your server is up-verify that your actual services are responding. Monitor TCP and UDP ports (80, 443, 22, 3306, and custom) and get instant alerts when connections drop or time out.
Setup in 2 minutes
Why Teams Use Port Monitoring
Ping only tells you the server is online. Port monitoring confirms your web server, database, mail server, or custom app is actually accepting connections.
Immediately spot blocked traffic after a security group update, ACL change, or firewall rule misconfiguration before users report incidents.
From HTTP and HTTPS to SSH, databases, game servers, and internal microservices-if it has a port, UptimeObserver can monitor it.
How It Works
Input your server IP or hostname and the exact port number you want to track.
Define timeout thresholds and check intervals, such as alerting when response time exceeds 2 seconds.
If a connection times out, is refused, or the port closes, your team is notified immediately.
Deep-Dive Features
Monitor TCP and UDP ports across your stack, including web traffic (80, 443), secure shell (22), databases (3306, 5432), email (25, 143, 587), and remote desktop (3389).
Verify service availability from multiple geographic regions to avoid false positives and isolate regional routing or filtering issues quickly.
Detect more than hard failures. Fine-tune timeout thresholds to catch rising latency and partial service degradation before they become outages.
Integrations
Keep your team in the loop by sending real-time downtime and performance alerts directly to your dedicated channels.
Send alerts directly to any Slack channel or DM.
Send notifications to any Discord server channel.
Receive instant alerts in your Telegram chat or group.
Push alerts directly to your mobile device.
POST event payloads to any endpoint in your own systems.
Get email alerts straight to your inbox on any schedule.
Connect AI assistants to your monitoring data via the Model Context Protocol.
Testimonials
Don’t just take our word for it, here’s what real users say.
“Reliable Website Monitoring with Instant Telegram Alerts.”
Florin B.
AI Engineer, Freelancer
“Easy Setup, Helpful UptimeObserver Team, and Generous Plans.”
Icaro F.
Software Engineer, Small Business
“Simple to Use with Excellent & Fast Support.”
Charlie F.
Managing Director, Small Business
Simple Pricing
14-day free trial. Cancel or change plans at any time.
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Indie
Most PopularFor indie makers and small teams.
Pro
For growing teams that need more.
Try UptimeObserver now. Setup in 2 minutes.