Cloudflare Rolls Out Post-Quantum Encryption Visibility Tools
Cloudflare has introduced new analytics and logging features that let administrators inspect post-quantum TLS 1.3 encryption adoption across live web traffic.
Before you start: versions, package names and storage identifiers change over time. Check the commands against the official documentation for your setup before running them, especially anything that creates, deletes or overwrites data.
New Analytics for Post-Quantum TLS 1.3
Cloudflare has integrated post-quantum cryptography visibility tools directly into its Application Security and Logs products. Administrators can now inspect and graph the adoption of post-quantum TLS 1.3 encryption for live web traffic using Logpush, Log Explorer, and the HTTP Traffic Analytics dashboard. The update surfaces the specific key exchange algorithm negotiated on every incoming visitor request.
The feature provides granular, per-connection telemetry to help practitioners audit their cryptographic posture and identify gaps across individual domains. While macro-level statistics have previously been available through public tracking tools, domain-level inspection allows teams to measure exact readiness and track compliance progress.
Why Granular Cryptographic Telemetry Matters
With regulatory frameworks anticipating the deprecation of legacy algorithms like RSA and classical Elliptic Curve Cryptography around 2030, organizations face strict migration timelines. Post-quantum encryption protects against long-term threats such as harvest-now-decrypt-later attacks, where encrypted data is captured today for decryption once powerful quantum computers become available.
By exposing metrics on algorithms such as the hybrid X25519MLKEM768 key exchange group, teams managing sensitive sectors like finance, healthcare, and defense can verify whether modern browsers are successfully negotiating quantum-resistant connections. The dashboard also highlights legacy traffic falling back to classical cryptography or older TLS versions.
How to Check Your Domain and Logs
Website operators utilizing Cloudflare can review their current encryption breakdown by navigating to the HTTP Traffic section under the Analytics tab in the dashboard, where a dedicated TLS Key Exchange card displays active negotiation groups.
For deeper pipeline analysis, engineers can enable the new ClientTLSKeyExchangeGroup field within HTTP request logs to capture individual connection details via Logpush or Log Explorer. If a domain shows minimal post-quantum usage, administrators must ensure that TLS 1.3 is explicitly enabled in their edge certificate settings, while legacy origin servers unable to natively support modern standards can be placed behind a secure tunnel.
Source
Official announcement or documentation
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