---
title: Browser Support Detection for PQ Encryption on Cloudflare Radar · Changelog
description: New browser support detection for PQ encryption on Radar
chatbotDeprioritize: true
source_url:
  html: https://developers.cloudflare.com/changelog/2025-10-06-radar-pq-encryption-test/
  md: https://developers.cloudflare.com/changelog/2025-10-06-radar-pq-encryption-test/index.md
---

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## Browser Support Detection for PQ Encryption on Cloudflare Radar

Oct 06, 2025

[Radar](https://developers.cloudflare.com/radar/)

[**Radar**](https://developers.cloudflare.com/radar/) now includes browser detection for Post-quantum (PQ) encryption. The [Post-quantum encryption card](https://radar.cloudflare.com/adoption-and-usage#post-quantum-encryption) now checks whether a user’s browser supports post-quantum encryption. If support is detected, information about the key agreement in use is displayed.

![Screenshot of the PQ encryption browser support test on the Adoption & Usage page](https://developers.cloudflare.com/_astro/pq-encryption-test.gx_uoaMX_ZAaHap.webp)
