Seiri guides
Dead man's switch monitoring
A dead man's switch flips when expected signals stop. For jobs, that signal is a heartbeat. Seiri is that switch for backups, invoices, ETL, and CronJobs.
Cron job monitoring
Heartbeat monitoring
Dead man's switch
Scheduled jobs
K8s CronJobs
Kube agent
Email heartbeats
Background jobs
Why “silence” matters
Most production incidents don’t crash loudly — they quietly stop running. A dead man's switch is how you detect that.
Seiri as your switch
- ·Schedule + grace period per webhook
- ·HTTP or email check-in
- ·Multi-channel alerts when the switch trips
- ·Status pages when customers need honesty
FAQ
What is a dead man's switch in monitoring?
A control that alerts when an expected keep-alive stops arriving — ideal for cron and batch jobs.
Can I use email as the switch?
Yes. Seiri supports email heartbeats to @ping.seiri.app for hosts that cannot open outbound HTTP.