---
title: UDP and ICMP Monitor Support for Private Load Balancing Endpoints · Changelog
description: Use UDP or ICMP to monitor the health of your private IP-based applications.
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  html: https://developers.cloudflare.com/changelog/2025-05-06-private-health-monitoring-methods/
  md: https://developers.cloudflare.com/changelog/2025-05-06-private-health-monitoring-methods/index.md
---

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## UDP and ICMP Monitor Support for Private Load Balancing Endpoints

May 06, 2025

[Load Balancing](https://developers.cloudflare.com/load-balancing/)

Cloudflare Load Balancing now supports **UDP (Layer 4)** and **ICMP (Layer 3)** health monitors for **private endpoints**. This makes it simple to track the health and availability of internal services that don’t respond to HTTP, TCP, or other protocol probes.

#### What you can do:

* Set up **ICMP ping monitors** to check if your private endpoints are reachable.
* Use **UDP monitors** for lightweight health checks on non-TCP workloads, such as DNS, VoIP, or custom UDP-based services.
* Gain better visibility and uptime guarantees for services running behind **Private Network Load Balancing**, without requiring public IP addresses.

This enhancement is ideal for internal applications that rely on low-level protocols, especially when used in conjunction with [**Cloudflare Tunnel**](https://developers.cloudflare.com/cloudflare-one/connections/connect-networks/), [**WARP**](https://developers.cloudflare.com/cloudflare-one/connections/connect-devices/warp/), and [**Magic WAN**](https://developers.cloudflare.com/magic-wan/) to create a secure and observable private network.

Learn more about [Private Network Load Balancing](https://developers.cloudflare.com/load-balancing/private-network/) or view the full list of [supported health monitor protocols](https://developers.cloudflare.com/load-balancing/monitors/#supported-protocols).
