2026-10-07
HTTP, HTTPS, and TLS: Part 6 — What is ECH (Encrypted Client Hello) and How It Hides the Site Name
ECH (Encrypted Client Hello) — a TLS 1.3 extension that encrypts the first handshake message, ClientHello. The main thing it hides is the site name in the SNI field. Without ECH any node between you and the server can …
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