---
description: New browser support detection for PQ encryption on Radar
title: Browser Support Detection for PQ Encryption on Cloudflare Radar
image: https://developers.cloudflare.com/changelog/post/2025-10-06-radar-pq-encryption-test/og.png?v=b2de3a6f3513ab11
---

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October 6, 2025

## Browser Support Detection for PQ Encryption on Cloudflare Radar

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

Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/changelog/post/2025-10-06-radar-pq-encryption-test/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/)

[**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/cdn-cgi/image/onerror=redirect,width=872,height=109,format=webp/_astro/pq-encryption-test.gx_uoaMX.png)

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