Documentation
Everything you need to set up Heimdall: monitors, quorum, alerting, SMS and phone calls, status pages and private locations.
Getting started
From sign-up to your first verified alert in about five minutes.
ReadMonitors and conditions
Monitor types, common settings and the condition language used to decide whether a check passed.
ReadHow quorum decides
Failing, healthy and excluded regions, monitor states, hysteresis and flap detection.
ReadAlerts, on-call and escalation
Channels, who is alerted, on-call rotations, escalation policies and acknowledging incidents.
ReadSMS and phone-call alerts
Your own confirmed phone number, what alert texts look like, reply commands and fair-use quotas.
ReadStatus pages
Static status pages on a CDN: components, incidents, maintenance and subscribers.
ReadPrivate locations
Run heimdall-probe inside your own network to monitor internal services.
ReadTwo-step sign-in
Protect your account with a code from an authenticator app, and know what to do when the phone is gone.
ReadUsers, roles and organisations
Invite your team, decide what each person may do, and see how alerts reach the members of an organisation.
ReadREST API
Authenticate with an API token and manage monitors, incidents and status pages over HTTP.
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