Encrypted Client Hello Is Here to Stay

Encrypted Client Hello (ECH), standardised by the IETF in RFC 9849, is rapidly becoming a normal part of Internet connectivity.Google’s introduction of platform support for ECH in Android 17 is an important milestone. ECH itself is not new: Chrome enabled it starting with Chrome 117 in September 2023, followed closely by Firefox 119 in October 2023. Chromium-based browsers such as Micros