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Changelog for LB zone monitoring improvements #24223

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Changelog for LB zone monitoring improvements #24223

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20 changes: 20 additions & 0 deletions src/content/changelog/load-balancing/2025-08-06-zone-monitoring-improvements.mdx
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---
title: Improvements to Monitoring Using Zone Settings
description: Monitors configured with a probe zone have been migrated to new infrastructure.
date: 2025-08-06
---

Cloudflare Load Balancing Monitors support loading and applying settings for a specific zone to monitoring requests to origin endpoints. This feature has been migrated to new infrastructure to improve reliability, performance, and accuracy.

All zone monitors have been tested against the new infrastructure. There should be no change to health monitoring results of currently healthy and active pools. Newly created or re-enabled pools may need validation of their monitor zone settings before being introduced to service, especially regarding correct application of mTLS.

### What you can expect:

- More reliable application of zone settings to monitoring requests, including
- Authenticated Origin Pulls
- Aegis Egress IP Pools
- Argo Smart Routing
- HTTP/2 to Origin
- Improved support and bug fixes for retries, redirects, and proxied origin resolution
- Improved performance and reliability of monitoring requests withing the Cloudflare network
- Unrelated CDN or WAF configuration changes should have no risk of impact to pool health