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Amazon CloudFront now provides viewer ISP and post-quantum TLS details

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AWS·Oct 30, 2026, 06:15 PMFeatureSecurity-relevantAI-assisted summary

Summary

CloudFront can now forward optional headers CloudFront-Viewer-ISP and CloudFront-Viewer-TLS-Details to origins.
ISP header reveals the viewer's internet service provider; TLS details header reports key exchange, signature scheme, and whether post‑quantum cryptography was used.
Configure forwarding by adding the headers to an origin request policy and attaching it to the distribution.

featuresecuritysource healthy

Official source Last checked Nov 4, 2026, 3:01 PM

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AI-assisted summarysource healthyLast checked Nov 4, 2026, 3:01 PM

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