Know when services stop responding
before users can't connect
Monitor any TCP port from 1-65535 with 20-second check intervals. Databases, mail servers, caches, custom services—if it listens on TCP, we monitor it.
20-Second Check Intervals
Detect port failures 15x faster than competitors. Know your services are down in seconds, not minutes.
Any TCP Port (1-65535)
SSH, FTP, SMTP, MySQL, PostgreSQL, Redis, Elasticsearch—monitor any service that listens on TCP.
Multi-Region Checks
Test port accessibility from North America, Europe, Asia, and Australia. Catch regional connectivity issues instantly.
Connection Time Tracking
Monitor how long connections take to establish. Detect slow services before they fail completely.
Simple setup for complex infrastructure
Port monitoring
for every scenario
Database Connectivity
Know instantly when MySQL, PostgreSQL, or MongoDB becomes unreachable.
Mail Server Health
Track SMTP, IMAP, and POP3 port availability.
SSH Access
Verify SSH remains accessible for server administration.
Cache & Queue Services
Monitor Redis, Memcached, and RabbitMQ ports.
Search Infrastructure
Track Elasticsearch and Solr port availability.
Custom Applications
Monitor any TCP service on ports 1-65535.
Enterprise-grade
port monitoring
Everything you need to ensure TCP services stay accessible across your entire infrastructure.
View Full Documentation20-Second Intervals
Know about port issues in seconds, not minutes.
5+ Global Locations
Catch geographic connectivity issues worldwide.
Custom Timeouts
Set connection thresholds per monitor.
Instant Alerts
Email, SMS, Slack, PagerDuty, and more.
Response Time Tracking
Detect slow services before they fail.
Firewall-Aware Testing
Tests exactly what your users experience.
Keeping infrastructure services online
Still checking ports manually?
UptimeRobot's port monitoring checks every 5 minutes on free tier. Bubobot checks every 20 seconds on paid plans, 3 minutes on free—and includes unlimited monitors.