Feedback
Changelog

March 2nd, 2026

ICMP Monitoring Is Here

We’re excited to announce ICMP monitors in Checkly, now available on all plans.

ICMP monitors continuously ping your hosts to measure reachability, latency, and packet loss across regions, so you can spot connectivity issues before they impact your users.

Create your first ICMP monitor

ICMP Monitor Results Overview Page

Use Cases

ICMP monitors check whether a host is reachable by sending ICMP Echo Requests (pings). Use them to:

  • Track packet loss and latency to detect degradation early

  • Verify that hosts which are not exposed to the public internet remain reachable

  • Catch network-level outages before they affect your application

  • Compare latency across regions to understand geographic performance

Get Started With ICMP Monitors

Jump into your dashboard to add a new ICMP monitor:

  1. Enter the hostname or IP address you want to monitor

  2. Set your ping count and packet loss thresholds

  3. Optionally add assertions (e.g. on latency)

ICMP monitors are fully integrated into Checkly’s Monitoring as Code (MaC) workflows and available in the CLI from version v7.1.0.

import { Frequency, IcmpAssertionBuilder, IcmpMonitor } from "checkly/constructs"

new IcmpMonitor('cloudflare-dns-icmp', {
  name: 'Cloudflare DNS ICMP Monitor',
  activated: true,
  frequency: Frequency.EVERY_1M,
  maxPacketLossThreshold: 20,
  degradedPacketLossThreshold: 10,
  request: {
    hostname: '1.1.1.1',
    pingCount: 20,
    assertions: [
      IcmpAssertionBuilder.latency('avg').lessThan(100),
      IcmpAssertionBuilder.latency('max').lessThan(200),
    ]
  }
})

Using Infrastructure as Code?

Learn more in our developer docs on ICMP monitoring.

See Uptime Monitoring in Action

ICMP monitors join Checkly’s uptime monitoring suite alongside URL, TCP, DNS, and Heartbeat, giving you visibility across every layer of your stack.

If you’re curious how teams use these monitors together in practice, join our upcoming webinar on uptime monitoring. We’ll walk through real-world examples of spotting reachability issues, catching DNS changes, validating TCP connections, and debugging outages.

Register here

Write a comment...