Checkly Monitors

checkly monitors

Simple health checks without code execution.

Monitor types

Heartbeat Monitors

Expect periodic pings from your application.

import { HeartbeatMonitor } from 'checkly/constructs'

new HeartbeatMonitor('app-heartbeat', {
  name: 'App Heartbeat',
  period: 300, // seconds
  periodUnit: 'seconds',
  grace: 60,
})

Usage:

# Your app pings this URL
curl -X POST https://ping.checklyhq.com/heartbeats/{YOUR_ID}

TCP Monitors

Check TCP port connectivity.

import { TcpMonitor } from 'checkly/constructs'

new TcpMonitor('database-tcp', {
  name: 'Database TCP Check',
  host: 'db.example.com',
  port: 5432,
  frequency: 5,
})

DNS Monitors

Validate DNS records.

import { DnsMonitor } from 'checkly/constructs'

new DnsMonitor('dns-check', {
  name: 'DNS A Record',
  host: 'example.com',
  recordType: 'A',
  expectedValues: ['93.184.216.34'],
})

URL Monitors

Simple HTTP availability checks.

import { UrlMonitor } from 'checkly/constructs'

new UrlMonitor('url-check', {
  name: 'Homepage URL Check',
  url: 'https://example.com',
  method: 'GET',
})

Related Skills

• See checkly-checks for more advanced monitoring
• See checkly-groups for organizing monitors