CloudFront Gets ISP and Post-Quantum TLS Visibility
Amazon CloudFront now lets you forward two new headers to your origin: CloudFront-Viewer-ISP shows which ISP each request comes from, while CloudFront-Viewer-TLS-Details reveals the cryptography details including post-quantum support. This means you can analyze traffic by network provider, spot anomalies, and measure how many of your users actually connect with post-quantum cryptography.
source: [aws/whats-new]