What is a Dead Man's Switch and how does TaskPulse use it?

A Dead Man's Switch is a mechanism that triggers when expected activity stops. TaskPulse monitors your scheduled tasks by expecting regular 'heartbeat' pings. If your task fails to ping within the expected interval plus a tolerance period, TaskPulse immediately alerts you via Email or Telegram. This way, you're notified when something stops working, not just when it reports an error.

What's the difference between Heartbeat and Signal monitors?

Heartbeat monitors are for scheduled tasks that should run at regular intervals (like cron jobs). They expect a ping within a set timeframe and alert you if it's missed. Signal monitors are for tracking arbitrary events in your application. They accept JSON payloads and automatically extract severity levels, making them perfect for logging business events, errors, or any metrics you want to track.

How do I integrate TaskPulse with my cron job or scheduled task?

It's simple! Just add an HTTP POST request at the end of your task: curl -X POST https://api.taskpulse.co/ping/YOUR_MONITOR_UUID. Check out the Integration Guide for code snippets in Node.js, Python, Go, PHP, Ruby, and guides for n8n, Make, Zapier, and more.

Can I use TaskPulse with n8n, Make, or Zapier?

Absolutely! TaskPulse works perfectly with low-code and no-code automation tools. Simply add an HTTP Request action at the end of your workflow pointing to your monitor URL. This way, you'll know immediately if your automation stops running or fails silently. We have detailed guides for n8n, Make (Integromat), Zapier, and Power Automate.

What happens if my task fails? Should I still send a ping?

No! Only send a ping when your task completes successfully. If your task fails, don't send a ping. TaskPulse will notice that the expected ping wasn't received and alert you automatically. This is the core principle of Dead Man's Switch monitoring.

How fast are the notifications?

TaskPulse checks monitors in real-time using WebSocket connections. When a monitor misses its expected ping, notifications are sent immediately. Email notifications typically arrive within seconds, and Telegram notifications are nearly instant. You can configure both channels independently for each monitor.

What's the minimum interval I can set?

The minimum interval depends on your plan: Free plan has 5 minutes minimum, Pro ($9/mo) has 1 minute minimum, and Business ($29/mo) has 10 seconds minimum.

Can I pause a monitor temporarily?

Yes! You can pause any monitor from the dashboard or monitor details page. While paused, the monitor won't trigger alerts even if pings are missed. This is useful during maintenance windows or when you know a task will be temporarily offline. Resume it anytime with a single click.

Is there a free plan?

Yes! Our free plan includes 5 heartbeat monitors, 5 signal monitors, 100 monthly events, and full access to Email and Telegram notifications. It's perfect for side projects and getting started. No credit card required.

How do I connect Telegram for notifications?

Go to Settings in your dashboard and click 'Connect Telegram'. This will open our Telegram bot where you just need to click 'Start'. That's it! Your account will be linked and you can enable Telegram notifications for any monitor.

What Is a Dead Man's Switch in Monitoring?

A Dead Man's Switch is a monitoring pattern that requires a system to actively prove it's working — not just that it hasn't broken. Here's what it is, how it works, and why it's essential for reliable automation.

Definition

A Dead Man's Switch (DMS) in software monitoring is a mechanism that triggers an alert when a system or process stops checking in. The monitored system must send a regular "I'm alive" signal. If that signal is missed — for any reason — the monitoring service assumes something went wrong and sends an alert.

The name comes from railway safety: a lever the driver must actively hold. Release the lever (intentionally or not) and the train stops automatically. In software, the equivalent is a heartbeat endpoint your process must ping — stop pinging, and an alert fires.

How it works

The DMS pattern has three components:

The monitored process — your cron job, workflow, or script. At the end of every successful run, it sends an HTTP ping to the monitoring service.
The monitoring service — TaskPulse, in this case. It expects a ping within a configured interval (e.g., every 24 hours). It also allows a tolerance window (e.g., 30 minutes) to account for minor delays.
The alert — if the ping is not received within the interval + tolerance, the service marks the monitor as failed and sends an alert via email, Telegram, Slack, or Discord.

The key insight: the monitoring service doesn't care why the ping was missed. It could be a script error, a server crash, a network outage, a misconfigured cron schedule, or someone accidentally disabling the job. All of these are caught equally.

Dead Man's Switch vs. traditional error monitoring

Traditional monitoring (log watchers, error trackers like Sentry) reacts to events your system emits. A DMS is proactive — it requires evidence that everything is working. The comparison:

Approach	Catches errors	Catches silent stops
Log monitoring	Yes	No
Error trackers (Sentry)	Yes	No
Uptime monitoring	Partial	No
Dead Man's Switch	Yes	Yes

Common use cases

Cron jobs and scheduled scripts — backups, report generation, data cleanup, SSL renewals
Automation workflows — n8n, Make.com, Zapier, Power Automate scenarios
Background workers — queue processors, task runners, Celery workers
ETL pipelines — data sync, database migrations, API integrations
CI/CD pipelines — nightly builds, automated test suites

How to implement a Dead Man's Switch

The simplest implementation requires just one line at the end of your script:

# Bash — add at the end of your cron script

curl -s -X POST https://api.taskpulse.co/ping/YOUR-MONITOR-UUID

# Python — add at the end of main()

requests.post("https://api.taskpulse.co/ping/YOUR-MONITOR-UUID", timeout=5)

To get started with TaskPulse's Dead Man's Switch monitoring:

Create a free account — no credit card required
Create a Heartbeat monitor and copy the UUID
Add the ping to the end of your script or workflow
Set the expected interval and tolerance
Configure your alert channel (email, Telegram, Slack, Discord)

See the integration guide for detailed setup instructions, or read the guides for specific tools: n8n, Make.com, Zapier, cron jobs.

Frequently asked questions

What is a Dead Man's Switch in software monitoring?

A Dead Man's Switch (DMS) in software monitoring is a pattern where a system must actively confirm it's working at regular intervals. If it stops confirming (i.e., "checking in"), an alert is triggered. It's the opposite of traditional error monitoring: instead of waiting for something to break, you require proof that everything is working.

How is a Dead Man's Switch different from uptime monitoring?

Uptime monitoring checks if a URL or service is responding (HTTP ping, TCP check). A Dead Man's Switch monitors whether a process or job is actively completing successfully. Uptime monitoring tells you if a server is up; a DMS tells you if your cron job, workflow, or background task is actually running.

What are common use cases for a Dead Man's Switch?

Common use cases include: monitoring cron jobs and scheduled scripts, monitoring automation workflows (n8n, Make, Zapier), monitoring background workers and queues, monitoring data sync and ETL pipelines, monitoring backup scripts and SSL renewal scripts.

How do I implement a Dead Man's Switch for my application?

The simplest implementation: at the end of each successful run of your script or job, send an HTTP POST request to a monitoring service like TaskPulse. Configure the expected interval and an alert channel. If the ping is missed, you'll get an alert within minutes.