Website Uptime Monitoring with SSL, DNS, SNMP & API Checks

Know the moment your site goes down. Monitor websites, APIs, SSL certificates, and servers from multiple locations — instant alerts before your customers notice.

Free forever — monitor up to 5 devices. No credit card required.

Why Choose Down Device?

Real-Time Monitoring

Instant alerts and updates on device performance, network health, and service availability with sub-minute detection.

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Multi-User Management

Seamlessly assign multiple admins, customize user roles, and manage team access with granular permissions.

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Enterprise SNMP

Leverage advanced SNMP monitoring for comprehensive device insights, performance metrics, and automated discovery.

Comprehensive Monitoring Services

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Website Monitoring

Real-time availability monitoring for your websites and web applications. Get instant alerts when downtime occurs, before your customers notice.

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API Monitoring

Monitor your REST API endpoints with custom headers, content validation, and response time tracking. Catch silent failures before they cascade through your application.

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Domain Expiration Monitoring

Protect your brand by monitoring domain registration status. Receive timely notifications to prevent costly domain lapses.

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Port & Service Monitoring

Monitor critical network services including email servers, databases, FTP, SSH, and custom applications across all ports.

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Performance Analytics

Detailed reporting and analytics with historical data, uptime statistics, and performance trends to optimize your infrastructure.

Set Up Monitoring in Under 2 Minutes

Add your first monitor, configure alerts, and start receiving notifications — all in less time than it takes to make coffee. No installation required.

Free plan includes 5 devices • No credit card required • Upgrade anytime

Questions? We're Here to Help

Need help choosing a plan, have a technical question, or want to discuss enterprise requirements? Our team responds within hours.

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