Cardinality Cloud Meta Monitor
Who monitors the monitors? When Prometheus goes down, you go blind. We make sure you know immediately.
It’s Been Too Quiet
It’s 11:45 PM. Dark. Stormy. You’ve been on-call all day, and mercifully, your phone has been silent. Fifteen more minutes and you hand off the pager. Time to relax.
But something nags at you. It’s been quiet. Too quiet.
You open your laptop. Pull up Grafana. Everything looks… fine? Wait. Why is that dashboard showing “No data”? You refresh. Still nothing.
Your stomach drops.
Prometheus isn’t running.
You check the timestamp on the last data point. Six hours ago. You’ve been flying blind through your entire shift. Any of those services could be down right now. That quiet evening? You have no idea if it was actually quiet or if your monitoring just died.
Who Monitors the Monitors?
Prometheus watches your services. But when Prometheus itself goes down, you lose visibility into everything. By the time you notice, you’ve already lost hours of observability data. And worse—you don’t know what you missed.
This is the nightmare scenario every SRE fears.
The Solution: Cardinality Cloud Meta Monitor
A simple, bulletproof monitoring solution: we watch your Prometheus instances using WatchDog heartbeat alerts.
How It Works
- WatchDog Heartbeat – Your Prometheus sends continuous heartbeat alerts to our service (WatchDog alerts, built into Prometheus)
- We Monitor the Heartbeat – As long as we receive alerts, we know Prometheus is healthy
- Instant Email Alerts – If heartbeats stop (beyond expected interval), we immediately notify you via email
- Never Be Blind Again – You know within minutes when your monitoring infrastructure fails
What You Get
- Immediate failure detection – Know within 5-10 minutes when Prometheus stops
- Email notifications – Instant alerts when monitoring goes silent (SMS and PagerDuty coming soon)
- Uptime tracking – Historical data on Prometheus availability
- Per-instance monitoring – Track multiple Prometheus instances across environments
- Simple setup – Add one Alertmanager route, done in 5 minutes
Battle-Tested Reliability
Built by engineers who’ve run Prometheus at Fortune 500 scale:
- 8M+ metric samples per second
- 150TiB of logs per day
- 300+ engineers supported
We know how critical monitoring infrastructure is. That’s why Meta Monitor runs on AWS with redundant ingestion endpoints, automated failover, and 99.9% uptime SLA.
Pricing That Makes Sense
$0.25 per Prometheus instance per day, billed monthly.
That’s $7.50/month per Prometheus instance. Less than a coffee per month to ensure you never lose visibility again.
No minimum commitment. No hidden fees. Cancel anytime.
Example Pricing
- Staging + Production setup (2 instances): $15/month
- Multi-region with 5 instances: $37.50/month
- Enterprise with 20 instances: $150/month
Compare that to the cost of a single incident where you were blind for hours.
Get Started in 5 Minutes
- Sign up at app.cardinality.cloud
- Create a team and get your API token
- Configure Alertmanager to send WatchDog alerts to us (we provide the config)
- Done – You’re now protected
Why Meta Monitor?
Vendor-neutral expertise. Built by practitioners who understand the pain of monitoring failures at scale. No upsells. No feature bloat. Just reliable monitoring of your monitors.
Sleep better. No more wondering if that quiet night was actually quiet or if your monitoring silently died.
Battle-tested. Built with enterprise-grade reliability by engineers who’ve been in your shoes.
Frequently Asked Questions
Q: What is a WatchDog alert? A: WatchDog is a special alert that Prometheus sends continuously while healthy. It’s designed specifically for monitoring the health of Prometheus itself. We provide example configurations to set it up in your environment.
Q: What if my Prometheus restarts briefly? A: We alert if we haven’t received a heartbeat in 5 minutes. Most Prometheus restarts complete in under a minute, so brief restarts won’t trigger alerts. If your restart takes longer than 5 minutes, you’ll be notified. For high-availability setups, we support monitoring redundant Prometheus instances—if one goes down during a restart, the other keeps sending heartbeats and prevents false alarms.
Q: Can I monitor other platforms like Grafana? A: Currently we focus on Prometheus monitoring using WatchDog alerts. We’re exploring support for other platforms including Grafana, Thanos, and more. Contact us if you have specific needs.
Q: How do I cancel? A: Anytime from your account dashboard. No questions asked. Billing stops at the end of your current billing cycle.
Q: Do you offer discounts for many instances? A: Contact us if you have 50+ Prometheus instances. We can discuss volume pricing.
Ready to Stop Being Blind?
Set up in 5 minutes. Sleep better tonight.