Guard Your Gates

Port Monitoring: Keep TCP/UDP Services Reachable

Real-time TCP/UDP port verification for databases (MySQL, PostgreSQL), SSH, and game servers. Get alerts the moment critical ports become unreachable.

Advanced Features for Advanced Users

TCP & UDP

Monitor any TCP or UDP port to ensure services stay reachable worldwide.

Database Ports

MySQL, PostgreSQL, Redis coverage.

Custom Timeouts

Tune timeouts, retries, and sensitivity per service to match real behavior.

IPv4 & IPv6

Test connectivity over both stacks to catch version-specific outages.

Protocol Agnostic

Database, SMTP, FTP, SSH — test connectivity without touching internal app logic.

Game Servers

Track Steam, RDP, VoIP ports.

MONITOR INTERVAL

Control How Often Your Site is Checked

Start with our recommended frequency, or dial it in yourself. Faster checks spot trouble first; slower checks keep alerts minimal. Switch settings anytime—your monitors keep running.

Every 30s
Business Plan only
2,880 checks/day

Lightning-fast alerts for mission-critical services.

Add Monitors to Your Status Page — Instantly

Transform raw uptime data into a live, public-facing dashboard. Link any monitor directly to your branded status page and keep users informed without lifting a finger.

One-Click Linking

Attach any monitor to your status page in seconds — no coding or complex setup required.

Real-Time Updates

Incident changes are instantly reflected, so visitors always see the most up-to-date status.

Multi-Monitor Display

Show multiple monitors in one page, perfect for SaaS platforms or complex infrastructure.

Control Google Indexing

Organize monitors into categories like API, website, and backend to improve clarity for visitors.

Your Brand, Your Domain

Host status pages on your domain with full branding controls for a seamless customer experience everywhere.

Whitelabelled Solution

Replace platform logos and links with yours, delivering a fully branded, distraction-free status experience for teams.

Password-Protected Views

Limit access to sensitive status pages with secure password protection and role-based controls for trusted viewers.

email

email

SMS

SMS

Voice call

Voice call

Slack

Slack

Zapier

Zapier

Telegram

Telegram

Webhooks

Webhooks

Discord

Discord

Microsoft Teams

Microsoft Teams

Never miss a Downtime Notification Again

Seamlessly connect your uptime alerts to the tools you already use. With native apps and webhook support, get notified instantly—via Slack, Telegram, Email, or any custom system—so your team stays in sync without lifting a finger.

Enterprise-Class Reliability

30-Second Checks

Critical systems fail fast—our 30-second checks detect outages within seconds, sending instant alerts before most users notice.

8+ Global Regions

Simulate real users in Tokyo, Berlin, and Dallas—multi-region probes uncover geo-specific failures your central monitor would otherwise miss.

Clear Response Tracking

Every check logs the response code your server actually returns, so a real outage and a network blip don't get mistaken for the same thing, helping you know at a glance whether it's worth escalating.

Set Up Port Checks in 60 Seconds

1

Choose Port Monitor

Select Port monitoring to check whether a specific TCP port on your server is open and accepting connections.

2

Enter Host & Port Number

Type your server's IP or domain along with the port number to check, then pick the check interval you prefer.

3

Activate & Get Instant Status

We run the first check instantly and alert you the moment that port stops responding.

Our Worldwide Monitoring Network

Tokyo, Japan

Germany

Bengaluru, India

Sweden

London, United Kingdom

Dallas, United States

Toronto, Canada

Ask for a New Region

Multiple global regions, resilient infrastructure, and real support—everything you need to monitor at scale. Missing a location? Tell us.

All the Monitors You Need in One Place

Ping Monitoring

Keyword Monitoring

SSL/Domain Monitoring

Heartbeat Monitoring

Https Monitoring

Track & Manage Incidents easily with our native mobile app

Download Our App for Any Devices

iOSAndroid

Frequently Asked Questions

Ports are service entry points; if they’re closed, users can’t connect.


Yes—UDP checks confirm response/availability for those protocols.


Yes, any port between 1-65535.


TCP requires handshake confirmation; UDP verifies packet receipt.


Ready to Experience Zunoy?

Start your journey with Zunoy’s powerful suite of tools, designed for startups, developers, and growing teams alike.

All our products come with a lifetime free tier.

Ask a question about Zunoy's products, pricing, or docs.

⌘K