Down Device

What Down Device is

Down Device is a web-based monitoring service for websites, web applications, REST APIs, SSL certificates, domains, ports, network devices and DNS. Checks run from multiple locations through distributed monitoring nodes. API monitors support custom headers, content validation and response-time tracking. SSL monitoring validates the full certificate chain and alerts about expiry at 30, 14 and 7 days. DNS monitoring follows record changes, normalizes TTL changes to reduce noise and discovers subdomains through Certificate Transparency logs. The Free plan covers 5 devices, HTTP and ping checks every 5 minutes, and email alerts; it excludes API, SNMP and port monitoring. Paid plans start at $9/mo. Basic costs $9 a month for 25–50 devices, 60-second checks, API and SNMP monitoring, port checks, email and SMS alerts, and 30-day retention. Pro costs $22.50 a month for 100 devices, all monitoring types, 30-second checks and 90-day retention. Enterprise is $45 a month, with 15-second checks, priority support, custom integrations, white-label options and one-year retention. The service also supports multiple admins, customizable roles and granular team permissions.

Who it suits

Down Device may suit teams monitoring websites, APIs, certificates, network devices or DNS. Its SSL monitoring page names SaaS companies, e-commerce sites, MSPs, IT consultants, internal infrastructure teams and compliance-sensitive organizations as intended users.

Limits

The Free plan covers 5 devices with HTTP and ping checks at 5-minute intervals and email alerts. It excludes API, SNMP, and port monitoring. Basic starts at $9 /month and lists 25–50 devices, 60-second checks, and 30-day retention.

Getting started

1. Open the Down Device website.
2. Choose the Free plan or a paid plan.
3. Use the web platform to configure monitoring for supported services.
4. Add team admins and set roles and permissions as needed.
5. Configure alert channels available with your plan.

Verdict

Down Device covers several monitoring types, with plan limits for devices, intervals and data retention. Check whether the Free plan’s HTTP and ping checks meet your needs before moving to a paid tier.