Monitor anything using a simple heartbeat

• Zero setup. Grab your API key and start sending events.
• Flexible assertions for alerts in any situation.

Product Highlights

Monitor hosts

Always know that an internal host or container is running without intrusive uptime checks.

Monitor email campaigns

Add Cronitor as a subscriber to any important mailing list and know instantly if email stops flowing.

Monitor user activity

Send heartbeats on key system and application events and follow trends over time.

Monitor any scraper

Include heartbeats in crawl maps and be alerted if ingestion or scraping activity stops.

Monitor webhooks

Subscribe Cronitor to any webhook for simple passive monitoring of third party services.

Monitor devices

Send heartbeats from internet connected devices of any kind and monitor your entire fleet.

Simple metrics

Enrich heartbeats with simple metrics and track things like loop iterations and records processed.

Instant alerts

Ensure the right person is notified if your heartbeat doesn't arrive at the expected time.

Live dashboards

See all of your heartbeat monitors on a fast, easy to use dashboard with live updates.

Developer friendly

Provision and version control your monitoring using our simple YAML configuration and CLI tools.

Open source

Add monitoring to any codebase in minutes with one of our official, open source SDKs.

More than heartbeats

Cronitor is a complete monitoring platform not just a heartbeat monitoring tool.

Reliability at scale

99.997%

Uptime last 12 months

50,000,000+

Events received per day

6,500,000+

Website & API checks per day

100,000+

Jobs monitored per day

10,000+

Alerts sent per day

2014

Founded in California