Sensor types
Fourteen sensor types for everything your users depend on.
From a public web page to a SQL query run inside your network. The plan badge shows the first plan that includes each type.
Web and APIs
- HTTP response FreeAvailability and expected status codes of a URL, with method, headers, body and authentication.
- Keyword FreeA word or phrase that must, or must not, appear in the page.
- JSON content FreeA value read from a JSON response and compared to what you expect.
- XML content FreeA value selected with XPath and compared to what you expect.
Network
- Ping ProHost reachability and round-trip time.
- Port ProA TCP port that must accept connections.
- Domain resolution ProA domain name that must keep resolving.
- Certificate validity ProDays left before a TLS certificate expires, with your own threshold.
Data, queues and files
- SQL query EnterpriseA query on PostgreSQL, MySQL, MariaDB, SQL Server or Oracle, and its result.
- Key-value store EnterprisePresence and value of Redis keys.
- Dead-letter queue EnterpriseMessages piling up in a RabbitMQ queue.
- File checksum EnterpriseA file that must exist and stay unchanged (MD5 to SHA-512).
Jobs and servers
- Heartbeat ProA job or service that must call Onagre on schedule. Silence is an incident.
- Server metrics With an agentCPU, memory and disk of the host running an agent, created with the agent.
Pick a goal, not a protocol.
The creation wizard starts from what you want to watch — a website, an API, a database, a scheduled job — and guides you to the right sensor.
What every sensor shares
- A schedule: every 1 to 30 minutes, hourly up to every 12 hours, daily or weekly
- An environment, tags and a service
- An alert rule with its integrations
- Incidents, response times and uptime history
Start watching what your business runs on.
Free for up to 10 sensors, without a credit card. Public checks need nothing to install.